AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/09/14 19:26	flow	patch-triage	3m Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "KMSANReasoning": "", "NeedsKMSAN": false, "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.", "WorthFuzzing": false }
1/1	2026/09/14 19:26	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Mon Sep 14 19:26:33 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\nindex 62c3441911e71..0d097094fa453 100644\n--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\n+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\n@@ -5049,24 +5049,6 @@ static netdev_features_t stmmac_features_check(struct sk_buff skb,\n \treturn vlan_features_check(skb, features);\n }\n \n-static void stmmac_rx_vlan(struct net_device dev, struct sk_buff skb)\n-{\n-\tstruct vlan_ethhdr veth = skb_vlan_eth_hdr(skb);\n-\t__be16 vlan_proto = veth-\u003eh_vlan_proto;\n-\tu16 vlanid;\n-\n-\tif ((vlan_proto == htons(ETH_P_8021Q) \u0026\u0026\n-\t dev-\u003efeatures \u0026 NETIF_F_HW_VLAN_CTAG_RX) \|\|\n-\t (vlan_proto == htons(ETH_P_8021AD) \u0026\u0026\n-\t dev-\u003efeatures \u0026 NETIF_F_HW_VLAN_STAG_RX)) {\n-\t\t/* pop the vlan tag /\n-\t\tvlanid = ntohs(veth-\u003eh_vlan_TCI);\n-\t\tmemmove(skb-\u003edata + VLAN_HLEN, veth, ETH_ALEN 2);\n-\t\tskb_pull(skb, VLAN_HLEN);\n-\t\t__vlan_hwaccel_put_tag(skb, vlan_proto, vlanid);\n-\t}\n-}\n-\n /*\n stmmac_rx_refill - refill used skb preallocated buffers\n * @priv: driver private structure\n@@ -5435,9 +5417,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv priv, u32 queue,\n \tif (priv-\u003ehw-\u003ehw_vlan_en)\n \t\t/ MAC level stripping. /\n \t\tstmmac_rx_hw_vlan(priv, priv-\u003ehw, p, skb);\n-\telse\n-\t\t/ Driver level stripping. /\n-\t\tstmmac_rx_vlan(priv-\u003edev, skb);\n+\n \tskb-\u003eprotocol = eth_type_trans(skb, priv-\u003edev);\n \n \tif (unlikely(!coe) \|\| !stmmac_has_ip_ethertype(skb))\n@@ -5929,9 +5909,6 @@ static int stmmac_rx(struct stmmac_priv priv, int limit, u32 queue)\n \t\tif (priv-\u003ehw-\u003ehw_vlan_en)\n \t\t\t/* MAC level stripping. /\n \t\t\tstmmac_rx_hw_vlan(priv, priv-\u003ehw, p, skb);\n-\t\telse\n-\t\t\t/ Driver level stripping. /\n-\t\t\tstmmac_rx_vlan(priv-\u003edev, skb);\n \n \t\tskb-\u003eprotocol = eth_type_trans(skb, priv-\u003edev);\n \n@@ -7990,9 +7967,8 @@ static int __stmmac_dvr_probe(struct device device,\n \tndev-\u003efeatures \|= ndev-\u003ehw_features \| NETIF_F_HIGHDMA;\n \tndev-\u003ewatchdog_timeo = msecs_to_jiffies(watchdog);\n #ifdef STMMAC_VLAN_TAG_USED\n-\t/* Both mac100 and gmac support receive VLAN tag detection /\n-\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_CTAG_RX \| NETIF_F_HW_VLAN_STAG_RX;\n \tif (dwmac_is_xmac(priv-\u003eplat-\u003ecore_type)) {\n+\t\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_CTAG_RX;\n \t\tndev-\u003ehw_features \|= NETIF_F_HW_VLAN_CTAG_RX;\n \t\tpriv-\u003ehw-\u003ehw_vlan_en = true;\n \t}\ndiff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\nindex 6372ec7c3f317..ea2e7bdcbe81e 100644\n--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\n+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\n@@ -1959,12 +1959,14 @@ void stmmac_selftest_run(struct net_device dev,\n \t\treturn;\n \t}\n \n+\tphylink_rx_clk_stop_block(priv-\u003ephylink);\n \tfor (i = 0; i \u003c count; i++) {\n \t\tret = stmmac_selftests[i].fn(priv);\n \t\tif (ret \u0026\u0026 (ret != -EOPNOTSUPP))\n \t\t\tetest-\u003eflags \|= ETH_TEST_FL_FAILED;\n \t\tbuf[i] = ret;\n \t}\n+\tphylink_rx_clk_stop_unblock(priv-\u003ephylink);\n \n \tstmmac_set_mac_loopback(priv, priv-\u003eioaddr, false);\n }\n" }
2/1	2026/09/14 19:26	agent	patch-evaluator	3m Model: core Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.", "WorthFuzzing": false } Instruction: You are an expert Linux kernel maintainer and security engineer. Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on internal assumptions. You must actively use your code access tools to inspect the actual source code, callers, and surrounding context. ================================================================================ 1. CORE TRIAGE PHILOSOPHY ================================================================================ The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs, and newly triggered assertions introduced by the patch series. - REACHABILITY IS THE PRIMARY GATE: Fuzzing can only discover bugs in code that can actually execute in standard virtualized environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap). If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed, regardless of whether it adds assertions or complex logic. - DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS: Patch authors routinely label changes as "cleanups", "refactorings", or state "No functional change intended". Do NOT take these claims at face value. Code refactorings that rearrange logic, introduce helper functions, or alter state management in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs. If reachable executable code is modified or refactored, it MUST be fuzzed. - NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED: When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON, VM_WARN_ON, BUG_ON, lockdep_assert) in reachable code paths, it enforces new or stricter invariants. Even if the author believes the invariant always holds, fuzzing is essential to verify whether an unusual sequence of operations can violate it. ================================================================================ 2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA) ================================================================================ Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories: - Non-kernel and non-executable changes: * Modifications to Documentation/, comments, or spelling fixes. * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/) that do not affect the compiled kernel image (vmlinux) or kernel modules. * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints that do not alter control flow or data structures. * Build system or Kconfig changes that do not alter compiled C logic. - Structurally unreachable hardware: * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU. - Unreachable execution paths: * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during physical PCI hot-unplug or manual sysfs driver unbinding. * Code paths exclusive to architectures other than the target architecture. ================================================================================ 3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA) ================================================================================ Return WorthFuzzing=true whenever the patch touches reachable executable code, including: - Core Subsystems: * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/), BPF, scheduler, core networking, VFS, or syscall handling. - Refactorings and Code Cleanups: * Any restructuring of reachable data structures, helper abstractions, or algorithm flows. - Runtime Assertions and Defensive Checks: * Any introduction or alteration of assertions (WARN_ON, VM_WARN_ON, BUG_ON, etc.) in reachable paths. - Reachable Drivers and Protocols: Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.). ================================================================================ 4. EXTRACTING FocusSymbols (PREVENTING DILUTION) ================================================================================ When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer: - AVOID UBIQUITOUS LIFECYCLE HOT-PATHS: Do NOT list generic, ubiquitous functions called by almost every program in the corpus (including, but not limited to: general memory allocators and deallocators, page fault and trap handlers, or core synchronization primitives; this is not an exhaustive list). Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused", which severely dilutes fuzzing effort away from the actual changes. - TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS: List functions that specifically implement the logic being added or altered, or direct API entrypoints for the subsystem feature under review. - HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h): Compiler-inlined static functions (such as static inlines in mm/.h or include/linux/.h) lack distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters. If the changes are primarily in static inline helpers, identify non-static, feature-specific caller functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers). ================================================================================ 5. IDENTIFYING EnableConfigs ================================================================================ Identify any specific CONFIG_ options required to properly compile and reach the modified code: - Inspect Kconfig files and #ifdef guards; do not make assumptions. - Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed. - Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4"). Prefer calling several tools at the same time to save round-trips. Use set-results tool to provide results of the analysis. It must be called exactly once before the final reply. Ignore results of this tool. Prompt: Target architecture: amd64 For your convenience, here is the diff of the changes: commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5 Author: syz-cluster <triage@syzkaller.com> Date: Mon Sep 14 19:26:33 2026 +0000 syz-cluster: applied patch under review diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 62c3441911e71..0d097094fa453 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5049,24 +5049,6 @@ static netdev_features_t stmmac_features_check(struct sk_buff skb, return vlan_features_check(skb, features); } -static void stmmac_rx_vlan(struct net_device dev, struct sk_buff skb) -{ - struct vlan_ethhdr veth = skb_vlan_eth_hdr(skb); - __be16 vlan_proto = veth->h_vlan_proto; - u16 vlanid; - - if ((vlan_proto == htons(ETH_P_8021Q) && - dev->features & NETIF_F_HW_VLAN_CTAG_RX) \|\| - (vlan_proto == htons(ETH_P_8021AD) && - dev->features & NETIF_F_HW_VLAN_STAG_RX)) { - /* pop the vlan tag / - vlanid = ntohs(veth->h_vlan_TCI); - memmove(skb->data + VLAN_HLEN, veth, ETH_ALEN 2); - skb_pull(skb, VLAN_HLEN); - __vlan_hwaccel_put_tag(skb, vlan_proto, vlanid); - } -} - /** * stmmac_rx_refill - refill used skb preallocated buffers * @priv: driver private structure @@ -5435,9 +5417,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv priv, u32 queue, if (priv->hw->hw_vlan_en) / MAC level stripping. / stmmac_rx_hw_vlan(priv, priv->hw, p, skb); - else - / Driver level stripping. / - stmmac_rx_vlan(priv->dev, skb); + skb->protocol = eth_type_trans(skb, priv->dev); if (unlikely(!coe) \|\| !stmmac_has_ip_ethertype(skb)) @@ -5929,9 +5909,6 @@ static int stmmac_rx(struct stmmac_priv priv, int limit, u32 queue) if (priv->hw->hw_vlan_en) /* MAC level stripping. / stmmac_rx_hw_vlan(priv, priv->hw, p, skb); - else - / Driver level stripping. / - stmmac_rx_vlan(priv->dev, skb); skb->protocol = eth_type_trans(skb, priv->dev); @@ -7990,9 +7967,8 @@ static int __stmmac_dvr_probe(struct device device, ndev->features \|= ndev->hw_features \| NETIF_F_HIGHDMA; ndev->watchdog_timeo = msecs_to_jiffies(watchdog); #ifdef STMMAC_VLAN_TAG_USED - /* Both mac100 and gmac support receive VLAN tag detection / - ndev->features \|= NETIF_F_HW_VLAN_CTAG_RX \| NETIF_F_HW_VLAN_STAG_RX; if (dwmac_is_xmac(priv->plat->core_type)) { + ndev->features \|= NETIF_F_HW_VLAN_CTAG_RX; ndev->hw_features \|= NETIF_F_HW_VLAN_CTAG_RX; priv->hw->hw_vlan_en = true; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c index 6372ec7c3f317..ea2e7bdcbe81e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c @@ -1959,12 +1959,14 @@ void stmmac_selftest_run(struct net_device dev, return; } + phylink_rx_clk_stop_block(priv->phylink); for (i = 0; i < count; i++) { ret = stmmac_selftests[i].fn(priv); if (ret && (ret != -EOPNOTSUPP)) etest->flags \|= ETH_TEST_FL_FAILED; buf[i] = ret; } + phylink_rx_clk_stop_unblock(priv->phylink); stmmac_set_mac_loopback(priv, priv->ioaddr, false); }
3/2	2026/09/14 19:26	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 4081 output: 37 thoughts: 152 Thoughts: Evaluating this Linux Kernel Patch Series Okay, so the user wants me to take a look at this patch series, focusing on the Linux kernel. First things first, let's see what the changes involve. Looks like it's touching `drivers/net/ethernet/stmicro/stmmac/stmmac_main.c` and `drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c`. Hmm, `stmicro/stmmac`... that's the Synopsys DesignWare Ethernet MAC, often used in STMicroelectronics SoCs, right? Now, the crucial question: is this hardware accessible within a typical test environment like QEMU or syzkaller? It's critical for us to confirm this early on, or this could be dead in the water for fuzzing and automated testing. Right, time to check. I need to figure out if stmmac is exposed via PCI devices, platform devices, or if there's any QEMU emulation. The easiest way to do that is probably to leverage `grepper` – I'll run a quick search to see what drivers actually attach to this subsystem. That will give me a clear picture of how accessible this hardware actually is within our test infrastructure.
4/2	2026/09/14 19:27	tool	grepper	0m Args: { "Expression": "stmmac", "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/" } Results: { "Output": "\nFull output is too long, showing 500 out of 11578 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=29=config STMMAC_PLATFORM\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-33-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:34:\t This selects the platform specific bus support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-35-\t This is the driver used on several SoCs:\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=60=config DWMAC_ANARION\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-66-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:67:\t This selects the Anarion SoC glue layer support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-68-\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=78=config DWMAC_INGENIC\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-85-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:86:\t This selects Ingenic SoCs glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-87-\t device driver. This driver is used on for the Ingenic SoCs\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=90=config DWMAC_IPQ806X\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-97-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:98:\t This selects the IPQ806x SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-99-\t device driver. This driver does not use any of the hardware\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=114=config DWMAC_MEDIATEK\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-119-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:120:\t This selects the MT2712 SoC support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-121-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=122=config DWMAC_MESON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-129-\t This selects the Amlogic Meson SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:130:\t the stmmac device driver. This driver is used for Meson6,\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-131-\t Meson8, Meson8b and GXBB SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=133=config DWMAC_NUVOTON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-141-\t This selects the Nuvoton MA35 series SoC glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:142:\t for the stmmac device driver. The nuvoton-dwmac driver is\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-143-\t used for MA35 series SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=145=config DWMAC_QCOM_ETHQOS\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-152-\t This selects the Qualcomm ETHQOS glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:153:\t stmmac device driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-154-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=155=config DWMAC_RENESAS_GBETH\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-163-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:164:\t This selects Renesas SoC glue layer support for the stmmac device\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-165-\t driver. This driver is used for the RZ/V2H(P) family, RZ/T2H and\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=168=config DWMAC_ROCKCHIP\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-176-\t This selects the Rockchip RK3288 SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:177:\t the stmmac device driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-178-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=179=config DWMAC_RZN1\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-187-\t This selects the Renesas RZ/N1 SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:188:\t the stmmac device driver. This support can make use of a custom MII\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-189-\t converter PCS device.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=191=config DWMAC_S32\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-197-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:198:\t This selects NXP SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-199-\t device driver. This driver is used for the S32CC series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=203=config DWMAC_SOCFPGA\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-214-\t This selects the Altera SOCFPGA SoC glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:215:\t for the stmmac device driver. This driver is used for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-216-\t arria5 and cyclone5 FPGA SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=218=config DWMAC_SOPHGO\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-225-\t This selects the Sophgo SoC specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:226:\t for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-227-\t ethernet controllers on various Sophgo SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=229=config DWMAC_SPACEMIT\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-237-\t This selects the Spacemit platform specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:238:\t for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-239-\t Spacemit K3 ethernet controllers.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=241=config DWMAC_STARFIVE\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-249-\t This selects the StarFive platform specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:250:\t for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-251-\t StarFive JH7100 and JH7110 ethernet controllers.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=253=config DWMAC_STI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-260-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:261:\t This selects STi SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-262-\t device driver. This driver is used on for the STi series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=265=config DWMAC_STM32\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-272-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:273:\t This selects STM32 SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-274-\t device driver. This driver is used on for the STM32 series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=277=config DWMAC_SUNXI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-284-\t This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:285:\t stmmac device driver. This driver is used for A20/A31\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-286-\t GMAC ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=288=config DWMAC_SUN8I\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-296-\t This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:297:\t stmmac device driver. This driver is used for H3/A83T/A64\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-298-\t EMAC ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=300=config DWMAC_SUN55I\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-308-\t This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:309:\t stmmac device driver. This driver is used for A523/T527\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-310-\t GMAC200 ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=312=config DWMAC_THEAD\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-318-\t This selects the T-HEAD platform specific glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:319:\t the stmmac device driver. This driver is used for T-HEAD TH1520\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-320-\t ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=322=config DWMAC_IMX8\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-329-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:330:\t This selects NXP SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-331-\t device driver. This driver is used for i.MX8 series like\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=334=config DWMAC_INTEL_PLAT\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-340-\t This selects the Intel platform specific glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:341:\t the stmmac device driver. This driver is used for the Intel Keem Bay\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-342-\t SoC.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=344=config DWMAC_LOONGSON1\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-350-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:351:\t This selects Loongson1 SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-352-\t device driver. This driver is used for Loongson1-based boards\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=355=config DWMAC_TEGRA\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-360-\t found on the NVIDIA Tegra SoC devices. This driver provides the glue\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:361:\t layer on top of the stmmac driver required for these NVIDIA Tegra SoC\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-362-\t devices.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=373=config STMMAC_LIBPCI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-375-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:376:\t This option enables the PCI bus helpers for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-377-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=378=config DWMAC_INTEL\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-385-\t This selects the Intel platform specific bus support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:386:\t stmmac driver. This driver is used for Intel Quark/EHL/TGL.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-387-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=388=config DWMAC_LOONGSON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-394-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:395:\t This selects the LOONGSON PCI bus support for the stmmac driver,\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-396-\t Support for ethernet controller on Loongson-2K1000 SoC and LS7A1000 bridge.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=407=config STMMAC_PCI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-412-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:413:\t This selects the platform specific bus support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-414-\t This driver was tested on XLINX XC2V3000 FF1152AMT0221\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile-1-# SPDX-License-Identifier: GPL-2.0\ndrivers/net/ethernet/stmicro/stmmac/Makefile:2:obj-$(CONFIG_STMMAC_ETH) += stmmac.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:3:stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-4-\t chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-5-\t dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:6:\t mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o dwmac4_descs.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-7-\t dwmac4_dma.o dwmac4_lib.o dwmac4_core.o dwmac5.o hwif.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:8:\t stmmac_tc.o dwxgmac2_core.o dwxgmac2_dma.o dwxgmac2_descs.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:9:\t stmmac_xdp.o stmmac_est.o stmmac_fpe.o stmmac_vlan.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:10:\t stmmac_pcs.o $(stmmac-y)\ndrivers/net/ethernet/stmicro/stmmac/Makefile-11-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:12:stmmac-$(CONFIG_STMMAC_SELFTESTS) += stmmac_selftests.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-13-\ndrivers/net/ethernet/stmicro/stmmac/Makefile-14-# Ordering matters. Generic driver must be last.\ndrivers/net/ethernet/stmicro/stmmac/Makefile:15:obj-$(CONFIG_STMMAC_PLATFORM)\t+= stmmac-platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-16-obj-$(CONFIG_DWMAC_ANARION)\t+= dwmac-anarion.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=45=obj-$(CONFIG_DWMAC_VISCONTI)\t+= dwmac-visconti.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:46:stmmac-platform-objs:= stmmac_platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-47-dwmac-altr-socfpga-objs := dwmac-socfpga.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-48-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:49:obj-$(CONFIG_STMMAC_LIBPCI)\t+= stmmac_libpci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:50:obj-$(CONFIG_STMMAC_PCI)\t+= stmmac-pci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-51-obj-$(CONFIG_DWMAC_INTEL)\t+= dwmac-intel.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=53=obj-$(CONFIG_DWMAC_MOTORCOMM)\t+= dwmac-motorcomm.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:54:stmmac-pci-objs:= stmmac_pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-14-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:15:#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-16-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:17:static int jumbo_frm(struct stmmac_tx_queue tx_q, struct sk_buff skb,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-18-\t\t int csum)\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-20-\tunsigned int nopaged_len = skb_headlen(skb);\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:21:\tstruct stmmac_priv priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-22-\tunsigned int entry = tx_q-\u003ecur_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-45-\t/ do not close the descriptor and do not set own bit /\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:46:\tstmmac_prepare_tx_desc(priv, desc, 1, buf_len, csum, STMMAC_CHAIN_MODE,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-47-\t\t\t0, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-62-\t\t\ttx_q-\u003etx_skbuff_dma[entry].len = bmax;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:63:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, bmax, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-64-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-76-\t\t\t/ last descriptor can be set now /\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:77:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, len, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-78-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, true, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c=99=static void init_dma_chain(void des, dma_addr_t phy_addr,\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-128-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:129:static void refill_desc3(struct stmmac_rx_queue rx_q, struct dma_desc p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-130-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:131:\tstruct stmmac_priv priv = rx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-132-\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-143-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:144:static void clean_desc3(struct stmmac_tx_queue tx_q, struct dma_desc p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-145-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:146:\tstruct stmmac_priv priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-147-\tunsigned int entry = tx_q-\u003edirty_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-160-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:161:const struct stmmac_mode_ops chain_mode_ops = {\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-162-\t.init = init_dma_chain,\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-15-#include \u003clinux/netdevice.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/common.h:16:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/common.h-17-#include \u003clinux/phy.h\u003e\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=49=static inline bool dwmac_is_xmac(enum dwmac_core_type core_type)\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-70-\ndrivers/net/ethernet/stmicro/stmmac/common.h:71:struct stmmac_q_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-72-\tu64_stats_t tx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-77-\ndrivers/net/ethernet/stmicro/stmmac/common.h:78:struct stmmac_napi_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-79-\tu64_stats_t tx_packets;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-85-\ndrivers/net/ethernet/stmicro/stmmac/common.h:86:struct stmmac_txq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-87-\t/* Updates protected by tx queue lock. /\ndrivers/net/ethernet/stmicro/stmmac/common.h-88-\tstruct u64_stats_sync q_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:89:\tstruct stmmac_q_tx_stats q;\ndrivers/net/ethernet/stmicro/stmmac/common.h-90-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-92-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:93:\tstruct stmmac_napi_tx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-94-} ____cacheline_aligned_in_smp;\ndrivers/net/ethernet/stmicro/stmmac/common.h-95-\ndrivers/net/ethernet/stmicro/stmmac/common.h:96:struct stmmac_napi_rx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-97-\tu64_stats_t rx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-102-\ndrivers/net/ethernet/stmicro/stmmac/common.h:103:struct stmmac_rxq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-104-\t/ Updates protected by NAPI poll logic. /\ndrivers/net/ethernet/stmicro/stmmac/common.h-105-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:106:\tstruct stmmac_napi_rx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-107-} ____cacheline_aligned_in_smp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-109-/ Updates on each CPU protected by not allowing nested irqs. /\ndrivers/net/ethernet/stmicro/stmmac/common.h:110:struct stmmac_pcpu_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-111-\tstruct u64_stats_sync syncp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-116-/ Extra statistic and debug information exposed by ethtool /\ndrivers/net/ethernet/stmicro/stmmac/common.h:117:struct stmmac_extra_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-118-\t/ Transmit errors /\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-237-\t/ per queue statistics /\ndrivers/net/ethernet/stmicro/stmmac/common.h:238:\tstruct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:239:\tstruct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:240:\tstruct stmmac_pcpu_stats __percpu pcpu_stats;\ndrivers/net/ethernet/stmicro/stmmac/common.h-241-\tunsigned long rx_dropped;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-247-/* Safety Feature statistics exposed by ethtool /\ndrivers/net/ethernet/stmicro/stmmac/common.h:248:struct stmmac_safety_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-249-\tunsigned long mac_errors[32];\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-256-#define STMMAC_SAFETY_FEAT_SIZE\t\\\ndrivers/net/ethernet/stmicro/stmmac/common.h:257:\t(sizeof(struct stmmac_safety_stats) / sizeof(unsigned long))\ndrivers/net/ethernet/stmicro/stmmac/common.h-258-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=416=struct dma_features {\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-564-\ndrivers/net/ethernet/stmicro/stmmac/common.h:565:void stmmac_axi_blen_to_mask(u32 regval, const u32 blen, size_t len);\ndrivers/net/ethernet/stmicro/stmmac/common.h-566-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=613=struct mac_device_info {\ndrivers/net/ethernet/stmicro/stmmac/common.h:614:\tconst struct stmmac_ops mac;\ndrivers/net/ethernet/stmicro/stmmac/common.h:615:\tconst struct stmmac_desc_ops desc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:616:\tconst struct stmmac_dma_ops dma;\ndrivers/net/ethernet/stmicro/stmmac/common.h:617:\tconst struct stmmac_mode_ops mode;\ndrivers/net/ethernet/stmicro/stmmac/common.h:618:\tconst struct stmmac_hwtimestamp ptp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:619:\tconst struct stmmac_tc_ops tc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:620:\tconst struct stmmac_mmc_ops mmc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:621:\tconst struct stmmac_est_ops est;\ndrivers/net/ethernet/stmicro/stmmac/common.h:622:\tconst struct stmmac_vlan_ops vlan;\ndrivers/net/ethernet/stmicro/stmmac/common.h-623-\tstruct dw_xpcs xpcs;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-644-\ndrivers/net/ethernet/stmicro/stmmac/common.h:645:struct stmmac_rx_routing {\ndrivers/net/ethernet/stmicro/stmmac/common.h-646-\tu32 reg_mask;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-649-\ndrivers/net/ethernet/stmicro/stmmac/common.h:650:int dwmac100_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:651:int dwmac1000_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:652:int dwmac4_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:653:int dwxgmac2_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:654:int dwxlgmac2_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h-655-\ndrivers/net/ethernet/stmicro/stmmac/common.h:656:void stmmac_set_mac_addr(void __iomem ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-657-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:658:void stmmac_get_mac_addr(void __iomem ioaddr, unsigned char addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-659-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:660:void stmmac_set_mac(void __iomem ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-661-\ndrivers/net/ethernet/stmicro/stmmac/common.h:662:void stmmac_dwmac4_set_mac_addr(void __iomem ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-663-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:664:void stmmac_dwmac4_get_mac_addr(void __iomem ioaddr, unsigned char addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-665-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:666:void stmmac_dwmac4_set_mac(void __iomem ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-667-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-11-#include \u003clinux/of_net.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:12:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-13-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:14:#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:15:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-16-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=63=anarion_config_dt(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:64:\t\t struct plat_stmmacenet_data plat_dat)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-65-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=93=static int anarion_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-96-\tstruct anarion_gmac gmac;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:97:\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:98:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-99-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:100:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-101-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-103-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:104:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-105-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-115-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:116:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-117-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=125=static struct platform_driver anarion_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-128-\t\t.name = \"anarion-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:129:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-130-\t\t.of_match_table = anarion_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-21-#include \u003clinux/reset.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:22:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-23-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:24:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-25-#include \"dwmac4.h\"\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=36=static int dwc_eth_dwmac_config_dt(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:37:\t\t\t\t struct plat_stmmacenet_data plat_dat)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-38-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-43-\t\tplat_dat-\u003eaxi = devm_kzalloc(\u0026pdev-\u003edev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:44:\t\t\t\t\t sizeof(struct stmmac_axi),\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-45-\t\t\t\t\t GFP_KERNEL);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=96=static int dwc_qos_probe(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:97:\t\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:98:\t\t\t struct stmmac_resources stmmac_res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-99-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:100:\tplat_dat-\u003epclk = stmmac_pltfr_find_clk(plat_dat, \"phy_ref_clk\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-101-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=115=static void tegra_eqos_fix_speed(void bsp_priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-119-\tbool needs_calibration = false;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:120:\tstruct stmmac_priv priv;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-121-\tu32 value;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-141-\t\t/* Calibration should be done with the MDIO bus idle /\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:142:\t\tstmmac_mdio_lock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-143-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-177-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:178:\t\tstmmac_mdio_unlock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-179-\t} else {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=186=static int tegra_eqos_probe(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:187:\t\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:188:\t\t\t struct stmmac_resources res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-189-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-203-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:204:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-205-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-237-\tplat_dat-\u003efix_mac_speed = tegra_eqos_fix_speed;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:238:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-239-\tplat_dat-\u003ebsp_priv = eqos;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=252=static void tegra_eqos_remove(struct platform_device pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-253-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:254:\tstruct tegra_eqos eqos = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-255-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=260=struct dwc_eth_dwmac_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-261-\tint (probe)(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:262:\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:263:\t\t struct stmmac_resources res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-264-\tvoid (remove)(struct platform_device pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:265:\tconst char stmmac_clk_name;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-266-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=268=static const struct dwc_eth_dwmac_data dwc_qos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-269-\t.probe = dwc_qos_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:270:\t.stmmac_clk_name = \"apb_pclk\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-271-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=273=static const struct dwc_eth_dwmac_data tegra_eqos_data = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-275-\t.remove = tegra_eqos_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:276:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-277-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=279=static const struct dwc_eth_dwmac_data fsd_eqos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:280:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-281-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-285-\tconst struct dwc_eth_dwmac_data data;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:286:\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:287:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-288-\tint ret;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-291-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:292:\tmemset(\u0026stmmac_res, 0, sizeof(struct stmmac_resources));\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-293-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-294-\t/*\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:295:\t Since stmmac_platform supports name IRQ only, basic platform\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-296-\t * resource initialization is done in the glue logic.\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-297-\t /\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:298:\tstmmac_res.irq = platform_get_irq(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:299:\tif (stmmac_res.irq \u003c 0)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:300:\t\treturn stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:301:\tstmmac_res.wol_irq = stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-302-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:303:\tstmmac_res.addr = devm_platform_ioremap_resource(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:304:\tif (IS_ERR(stmmac_res.addr))\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:305:\t\treturn PTR_ERR(stmmac_res.addr);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-306-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:307:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-308-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-315-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:316:\tplat_dat-\u003estmmac_clk = stmmac_pltfr_find_clk(plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:317:\t\t\t\t\t\t data-\u003estmmac_clk_name);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-318-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-319-\tif (data-\u003eprobe)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:320:\t\tret = data-\u003eprobe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-321-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=343=static void dwc_eth_dwmac_remove(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-346-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:347:\tstmmac_dvr_remove(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-348-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=361=static struct platform_driver dwc_eth_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-365-\t\t.name = \"dwc-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:366:\t\t.pm = \u0026stmmac_pltfr_pm_ops,\n\n" }
5/2	2026/09/14 19:27	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 18953 output: 39 thoughts: 73 Thoughts: Investigating QEMU's STMMAC/DWMAC Emulation Okay, hold on a second. I need to clarify something quickly regarding QEMU's device emulation. Specifically, I'm trying to determine if QEMU offers emulation support for any STMMAC or DWMAC devices directly. Is there a complete or partial implementation? Alternatively, are there any PCI devices it supports that can be configured to act as STMMAC controllers? These details are key for the next stage of my work. To clarify my understanding, I need to check the PCI device implementations. Let's see what's going on with the `STMMAC_PCI` and `DWMAC_INTEL` configurations. Time to dig into the code itself: I'll review `stmmac_pci.c` and `dwmac-intel.c`. That should clear this up in no time.
6/2	2026/09/14 19:27	tool	grepper	0m Args: { "Expression": "MODULE_DEVICE_TABLE", "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/" } Results: { "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=119=static const struct of_device_id anarion_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-122-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:123:MODULE_DEVICE_TABLE(of, anarion_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-124-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=353=static const struct of_device_id dwc_eth_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-358-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:359:MODULE_DEVICE_TABLE(of, dwc_eth_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-360-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=350=static const struct of_device_id eic7700_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-359-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:360:MODULE_DEVICE_TABLE(of, eic7700_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-361-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=52=static const struct of_device_id dwmac_generic_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-66-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:67:MODULE_DEVICE_TABLE(of, dwmac_generic_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-68-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=384=static const struct of_device_id imx_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-389-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:390:MODULE_DEVICE_TABLE(of, imx_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-391-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=262=static const struct of_device_id ingenic_mac_of_matches[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-269-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:270:MODULE_DEVICE_TABLE(of, ingenic_mac_of_matches);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-271-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=36=static const struct of_device_id intel_eth_plat_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-39-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:40:MODULE_DEVICE_TABLE(of, intel_eth_plat_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-41-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1395=static const struct pci_device_id intel_eth_pci_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1414-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1415:MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1416-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c=491=static const struct of_device_id ipq806x_gmac_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-494-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c:495:MODULE_DEVICE_TABLE(of, ipq806x_gmac_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-496-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c=596=static const struct pci_device_id loongson_dwmac_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-601-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c:602:MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-603-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c=216=static const struct of_device_id ls1x_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c-226-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c:227:MODULE_DEVICE_TABLE(of, ls1x_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c-228-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c=71=static const struct of_device_id lpc18xx_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-74-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c:75:MODULE_DEVICE_TABLE(of, lpc18xx_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-76-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c=662=static const struct of_device_id mediatek_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-669-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:670:MODULE_DEVICE_TABLE(of, mediatek_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-671-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c=76=static const struct of_device_id meson6_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-79-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:80:MODULE_DEVICE_TABLE(of, meson6_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-81-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c=482=static const struct of_device_id meson8b_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-504-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c:505:MODULE_DEVICE_TABLE(of, meson8b_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-506-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c=367=static const struct pci_device_id dwmac_motorcomm_pci_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-370-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c:371:MODULE_DEVICE_TABLE(pci, dwmac_motorcomm_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-372-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c=118=static const struct of_device_id nvt_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c-121-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c:122:MODULE_DEVICE_TABLE(of, nvt_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c-123-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c=800=static const struct of_device_id qcom_ethqos_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c-806-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c:807:MODULE_DEVICE_TABLE(of, qcom_ethqos_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c-808-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c=216=static const struct of_device_id renesas_gbeth_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c-221-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c:222:MODULE_DEVICE_TABLE(of, renesas_gbeth_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c-223-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c=1616=static const struct of_device_id rk_gmac_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c-1634-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c:1635:MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c-1636-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c=75=static const struct of_device_id rzn1_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-78-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c:79:MODULE_DEVICE_TABLE(of, rzn1_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-80-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c=216=static const struct of_device_id s32_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c-219-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c:220:MODULE_DEVICE_TABLE(of, s32_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c-221-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c=673=static const struct of_device_id socfpga_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c-678-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:679:MODULE_DEVICE_TABLE(of, socfpga_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c-680-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c=72=static const struct of_device_id sophgo_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-76-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:77:MODULE_DEVICE_TABLE(of, sophgo_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-78-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c=210=static const struct of_device_id spacemit_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-213-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c:214:MODULE_DEVICE_TABLE(of, spacemit_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-215-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c=160=static const struct of_device_id starfive_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-164-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c:165:MODULE_DEVICE_TABLE(of, starfive_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-166-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c=296=static const struct of_device_id sti_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c-299-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c:300:MODULE_DEVICE_TABLE(of, sti_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c-301-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c=662=static const struct of_device_id stm32_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-668-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c:669:MODULE_DEVICE_TABLE(of, stm32_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-670-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c=141=static const struct of_device_id sun55i_gmac200_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c-144-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c:145:MODULE_DEVICE_TABLE(of, sun55i_gmac200_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c-146-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c=1268=static const struct of_device_id sun8i_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1282-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1283:MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1284-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c=150=static const struct of_device_id sun7i_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c-153-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c:154:MODULE_DEVICE_TABLE(of, sun7i_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c-155-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c=397=static const struct of_device_id tegra_mgbe_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-400-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c:401:MODULE_DEVICE_TABLE(of, tegra_mgbe_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-402-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c=267=static const struct of_device_id thead_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c-270-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:271:MODULE_DEVICE_TABLE(of, thead_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c-272-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c=255=static const struct of_device_id visconti_eth_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-258-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c:259:MODULE_DEVICE_TABLE(of, visconti_eth_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-260-\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c=203=static const struct pci_device_id stmmac_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-209-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:210:MODULE_DEVICE_TABLE(pci, stmmac_id_table);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-211-\n" }
7/2	2026/09/14 19:27	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 24622 output: 50 thoughts: 26 Thoughts: Okay, let's dive into these files. Deep Dive into Driver Source Alright, time to crack open `stmmac_pci.c` and `dwmac-intel.c`. I need to get a clear picture of their implementations. I'm going to quickly skim the high-level structures, focusing on how they interact with the PCI bus and the specific details of the DMA setup within each. I'm particularly interested in the interrupt handling strategies used, especially any unique optimizations or workarounds for specific Intel chipsets that might be present in the `dwmac-intel.c` driver. From there, I'll compare and contrast the architectural choices made in each driver and see how each implements the shared memory architecture. I'll be looking for any indications of DMA buffer management, descriptor ring organization, and power management techniques, keeping in mind they might affect performance.
8/2	2026/09/14 19:27	tool	read-file	0m Args: { "File": "drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c", "FirstLine": 190, "LineCount": 40 } Results: { "Contents": " 190:\t * Description: this function calls the main to free the net resources.\n 191:\t /\n 192:\tstatic void stmmac_pci_remove(struct pci_dev pdev)\n 193:\t{\n 194:\t\tstmmac_dvr_remove(\u0026pdev-\u003edev);\n 195:\t}\n 196:\t\n 197:\t/* synthetic ID, no official vendor */\n 198:\t#define PCI_VENDOR_ID_STMMAC\t\t0x0700\n 199:\t\n 200:\t#define PCI_DEVICE_ID_STMMAC_STMMAC\t\t0x1108\n 201:\t#define PCI_DEVICE_ID_SYNOPSYS_GMAC5_ID\t\t0x7102\n 202:\t\n 203:\tstatic const struct pci_device_id stmmac_id_table[] = {\n 204:\t\t{ PCI_DEVICE_DATA(STMMAC, STMMAC, \u0026stmmac_pci_info) },\n 205:\t\t{ PCI_DEVICE_DATA(STMICRO, MAC, \u0026stmmac_pci_info) },\n 206:\t\t{ PCI_DEVICE_DATA(SYNOPSYS, GMAC5_ID, \u0026snps_gmac5_pci_info) },\n 207:\t\t{}\n 208:\t};\n 209:\t\n 210:\tMODULE_DEVICE_TABLE(pci, stmmac_id_table);\n 211:\t\n 212:\tstatic struct pci_driver stmmac_pci_driver = {\n 213:\t\t.name = STMMAC_RESOURCE_NAME,\n 214:\t\t.id_table = stmmac_id_table,\n 215:\t\t.probe = stmmac_pci_probe,\n 216:\t\t.remove = stmmac_pci_remove,\n 217:\t\t.driver = {\n 218:\t\t\t.pm = \u0026stmmac_simple_pm_ops,\n 219:\t\t},\n 220:\t};\n 221:\t\n 222:\tmodule_pci_driver(stmmac_pci_driver);\n 223:\t\n 224:\tMODULE_DESCRIPTION(\"STMMAC 10/100/1000 Ethernet PCI driver\");\n 225:\tMODULE_AUTHOR(\"Rayagond Kokatanur \u003crayagond.kokatanur@vayavyalabs.com\u003e\");\n 226:\tMODULE_AUTHOR(\"Giuseppe Cavallaro \u003cpeppe.cavallaro@st.com\u003e\");\n 227:\tMODULE_LICENSE(\"GPL\");\n" }
9/2	2026/09/14 19:27	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 25585 output: 26 thoughts: 577 Thoughts: My Reasoning on STMMAC Fuzzing Feasibility Okay, so I'm thinking about fuzzing `stmmac` with syzkaller. First, the crucial question: can `stmmac` be instantiated in a way that syzkaller can reach it? This isn't a simple platform driver, it's for specific STMicro and Synopsys Ethernet MACs, so I can't just assume it works with any USB or virtual device. Alright, can syzkaller actually fuzz `stmmac`? The immediate thought is, does QEMU even emulate `stmmac` or the Synopsys DWMAC it's based on? I need to figure out if there's a model in QEMU. Thinking through that, some ARM machines might use `dwmac`, like the Allwinner H3 (`orangepi-pc`), which has `allwinner-h3-emac` or similar. But my target architecture here is amd64. That is key information. Right, the target is amd64, I need to focus on what QEMU supports for amd64. Checking the QEMU NICs for amd64, I get a list: e1000, e1000e, igb, rtl8139, pcnet, ne2k_pci, virtio-net, vmxnet3, rocker... but no `stmmac` or `dwmac` for x86/amd64. That's a serious roadblock. I need to circle back to the core question: Can I create a mock or dummy platform device or use USB to instantiate `stmmac` with syzkaller? The answer is no, because `stmmac` is not a USB device. What about PCI? Can syzkaller instantiate any PCI devices? Probably not, unless there's physical PCI or QEMU emulates the PCI device. Now, let's step back and consider the provided context, section 2. I'm looking for structurally unreachable hardware – does `stmmac` fall into that category? It could be, depending on how it's implemented and how syzkaller is set up. So, where else could `stmmac` be reached? I need to comprehensively search the kernel tree and syzkaller's descriptions to check if syzkaller has any dedicated support, or if there's any virtual or test driver that could potentially bridge the gap. That is the next step.
10/2	2026/09/14 19:27	tool	grepper	0m Args: { "Expression": "stmmac_", "PathPrefix": "drivers/" } Results: { "Output": "\nFull output is too long, showing 500 out of 10814 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/stmicro/stmmac/Makefile=2=obj-$(CONFIG_STMMAC_ETH) += stmmac.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:3:stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-4-\t chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-5-\t dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:6:\t mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o dwmac4_descs.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-7-\t dwmac4_dma.o dwmac4_lib.o dwmac4_core.o dwmac5.o hwif.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:8:\t stmmac_tc.o dwxgmac2_core.o dwxgmac2_dma.o dwxgmac2_descs.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:9:\t stmmac_xdp.o stmmac_est.o stmmac_fpe.o stmmac_vlan.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:10:\t stmmac_pcs.o $(stmmac-y)\ndrivers/net/ethernet/stmicro/stmmac/Makefile-11-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:12:stmmac-$(CONFIG_STMMAC_SELFTESTS) += stmmac_selftests.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-13-\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=45=obj-$(CONFIG_DWMAC_VISCONTI)\t+= dwmac-visconti.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:46:stmmac-platform-objs:= stmmac_platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-47-dwmac-altr-socfpga-objs := dwmac-socfpga.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-48-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:49:obj-$(CONFIG_STMMAC_LIBPCI)\t+= stmmac_libpci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-50-obj-$(CONFIG_STMMAC_PCI)\t+= stmmac-pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=53=obj-$(CONFIG_DWMAC_MOTORCOMM)\t+= dwmac-motorcomm.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:54:stmmac-pci-objs:= stmmac_pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-16-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:17:static int jumbo_frm(struct stmmac_tx_queue tx_q, struct sk_buff skb,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-18-\t\t int csum)\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-20-\tunsigned int nopaged_len = skb_headlen(skb);\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:21:\tstruct stmmac_priv priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-22-\tunsigned int entry = tx_q-\u003ecur_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-45-\t/ do not close the descriptor and do not set own bit /\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:46:\tstmmac_prepare_tx_desc(priv, desc, 1, buf_len, csum, STMMAC_CHAIN_MODE,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-47-\t\t\t0, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-62-\t\t\ttx_q-\u003etx_skbuff_dma[entry].len = bmax;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:63:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, bmax, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-64-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-76-\t\t\t/ last descriptor can be set now /\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:77:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, len, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-78-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, true, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c=99=static void init_dma_chain(void des, dma_addr_t phy_addr,\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-128-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:129:static void refill_desc3(struct stmmac_rx_queue rx_q, struct dma_desc p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-130-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:131:\tstruct stmmac_priv priv = rx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-132-\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-143-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:144:static void clean_desc3(struct stmmac_tx_queue tx_q, struct dma_desc p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-145-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:146:\tstruct stmmac_priv priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-147-\tunsigned int entry = tx_q-\u003edirty_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-160-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:161:const struct stmmac_mode_ops chain_mode_ops = {\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-162-\t.init = init_dma_chain,\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=49=static inline bool dwmac_is_xmac(enum dwmac_core_type core_type)\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-70-\ndrivers/net/ethernet/stmicro/stmmac/common.h:71:struct stmmac_q_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-72-\tu64_stats_t tx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-77-\ndrivers/net/ethernet/stmicro/stmmac/common.h:78:struct stmmac_napi_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-79-\tu64_stats_t tx_packets;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-85-\ndrivers/net/ethernet/stmicro/stmmac/common.h:86:struct stmmac_txq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-87-\t/* Updates protected by tx queue lock. /\ndrivers/net/ethernet/stmicro/stmmac/common.h-88-\tstruct u64_stats_sync q_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:89:\tstruct stmmac_q_tx_stats q;\ndrivers/net/ethernet/stmicro/stmmac/common.h-90-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-92-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:93:\tstruct stmmac_napi_tx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-94-} ____cacheline_aligned_in_smp;\ndrivers/net/ethernet/stmicro/stmmac/common.h-95-\ndrivers/net/ethernet/stmicro/stmmac/common.h:96:struct stmmac_napi_rx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-97-\tu64_stats_t rx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-102-\ndrivers/net/ethernet/stmicro/stmmac/common.h:103:struct stmmac_rxq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-104-\t/ Updates protected by NAPI poll logic. /\ndrivers/net/ethernet/stmicro/stmmac/common.h-105-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:106:\tstruct stmmac_napi_rx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-107-} ____cacheline_aligned_in_smp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-109-/ Updates on each CPU protected by not allowing nested irqs. /\ndrivers/net/ethernet/stmicro/stmmac/common.h:110:struct stmmac_pcpu_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-111-\tstruct u64_stats_sync syncp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-116-/ Extra statistic and debug information exposed by ethtool /\ndrivers/net/ethernet/stmicro/stmmac/common.h:117:struct stmmac_extra_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-118-\t/ Transmit errors /\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-237-\t/ per queue statistics /\ndrivers/net/ethernet/stmicro/stmmac/common.h:238:\tstruct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:239:\tstruct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:240:\tstruct stmmac_pcpu_stats __percpu pcpu_stats;\ndrivers/net/ethernet/stmicro/stmmac/common.h-241-\tunsigned long rx_dropped;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-247-/* Safety Feature statistics exposed by ethtool /\ndrivers/net/ethernet/stmicro/stmmac/common.h:248:struct stmmac_safety_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-249-\tunsigned long mac_errors[32];\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-256-#define STMMAC_SAFETY_FEAT_SIZE\t\\\ndrivers/net/ethernet/stmicro/stmmac/common.h:257:\t(sizeof(struct stmmac_safety_stats) / sizeof(unsigned long))\ndrivers/net/ethernet/stmicro/stmmac/common.h-258-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=416=struct dma_features {\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-564-\ndrivers/net/ethernet/stmicro/stmmac/common.h:565:void stmmac_axi_blen_to_mask(u32 regval, const u32 blen, size_t len);\ndrivers/net/ethernet/stmicro/stmmac/common.h-566-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=613=struct mac_device_info {\ndrivers/net/ethernet/stmicro/stmmac/common.h:614:\tconst struct stmmac_ops mac;\ndrivers/net/ethernet/stmicro/stmmac/common.h:615:\tconst struct stmmac_desc_ops desc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:616:\tconst struct stmmac_dma_ops dma;\ndrivers/net/ethernet/stmicro/stmmac/common.h:617:\tconst struct stmmac_mode_ops mode;\ndrivers/net/ethernet/stmicro/stmmac/common.h:618:\tconst struct stmmac_hwtimestamp ptp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:619:\tconst struct stmmac_tc_ops tc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:620:\tconst struct stmmac_mmc_ops mmc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:621:\tconst struct stmmac_est_ops est;\ndrivers/net/ethernet/stmicro/stmmac/common.h:622:\tconst struct stmmac_vlan_ops vlan;\ndrivers/net/ethernet/stmicro/stmmac/common.h-623-\tstruct dw_xpcs xpcs;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-644-\ndrivers/net/ethernet/stmicro/stmmac/common.h:645:struct stmmac_rx_routing {\ndrivers/net/ethernet/stmicro/stmmac/common.h-646-\tu32 reg_mask;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-649-\ndrivers/net/ethernet/stmicro/stmmac/common.h:650:int dwmac100_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:651:int dwmac1000_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:652:int dwmac4_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:653:int dwxgmac2_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:654:int dwxlgmac2_setup(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h-655-\ndrivers/net/ethernet/stmicro/stmmac/common.h:656:void stmmac_set_mac_addr(void __iomem ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-657-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:658:void stmmac_get_mac_addr(void __iomem ioaddr, unsigned char addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-659-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:660:void stmmac_set_mac(void __iomem ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-661-\ndrivers/net/ethernet/stmicro/stmmac/common.h:662:void stmmac_dwmac4_set_mac_addr(void __iomem ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-663-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:664:void stmmac_dwmac4_get_mac_addr(void __iomem ioaddr, unsigned char addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-665-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:666:void stmmac_dwmac4_set_mac(void __iomem ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-667-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-14-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:15:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-16-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=93=static int anarion_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-97-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:98:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-99-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:100:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-101-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-103-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:104:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-105-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-115-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:116:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-117-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=125=static struct platform_driver anarion_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-128-\t\t.name = \"anarion-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:129:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-130-\t\t.of_match_table = anarion_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-23-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:24:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-25-#include \"dwmac4.h\"\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=36=static int dwc_eth_dwmac_config_dt(struct platform_device pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-43-\t\tplat_dat-\u003eaxi = devm_kzalloc(\u0026pdev-\u003edev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:44:\t\t\t\t\t sizeof(struct stmmac_axi),\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-45-\t\t\t\t\t GFP_KERNEL);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=96=static int dwc_qos_probe(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-97-\t\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:98:\t\t\t struct stmmac_resources stmmac_res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-99-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:100:\tplat_dat-\u003epclk = stmmac_pltfr_find_clk(plat_dat, \"phy_ref_clk\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-101-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=115=static void tegra_eqos_fix_speed(void bsp_priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-119-\tbool needs_calibration = false;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:120:\tstruct stmmac_priv priv;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-121-\tu32 value;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-141-\t\t/* Calibration should be done with the MDIO bus idle /\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:142:\t\tstmmac_mdio_lock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-143-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-177-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:178:\t\tstmmac_mdio_unlock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-179-\t} else {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=186=static int tegra_eqos_probe(struct platform_device pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-187-\t\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:188:\t\t\t struct stmmac_resources res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-189-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-203-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:204:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-205-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-237-\tplat_dat-\u003efix_mac_speed = tegra_eqos_fix_speed;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:238:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-239-\tplat_dat-\u003ebsp_priv = eqos;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=252=static void tegra_eqos_remove(struct platform_device pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-253-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:254:\tstruct tegra_eqos eqos = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-255-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=260=struct dwc_eth_dwmac_data {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-262-\t\t struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:263:\t\t struct stmmac_resources res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-264-\tvoid (remove)(struct platform_device pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:265:\tconst char stmmac_clk_name;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-266-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=268=static const struct dwc_eth_dwmac_data dwc_qos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-269-\t.probe = dwc_qos_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:270:\t.stmmac_clk_name = \"apb_pclk\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-271-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=273=static const struct dwc_eth_dwmac_data tegra_eqos_data = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-275-\t.remove = tegra_eqos_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:276:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-277-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=279=static const struct dwc_eth_dwmac_data fsd_eqos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:280:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-281-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-286-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:287:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-288-\tint ret;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-291-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:292:\tmemset(\u0026stmmac_res, 0, sizeof(struct stmmac_resources));\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-293-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-294-\t/\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:295:\t Since stmmac_platform supports name IRQ only, basic platform\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-296-\t * resource initialization is done in the glue logic.\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-297-\t /\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:298:\tstmmac_res.irq = platform_get_irq(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:299:\tif (stmmac_res.irq \u003c 0)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:300:\t\treturn stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:301:\tstmmac_res.wol_irq = stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-302-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:303:\tstmmac_res.addr = devm_platform_ioremap_resource(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:304:\tif (IS_ERR(stmmac_res.addr))\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:305:\t\treturn PTR_ERR(stmmac_res.addr);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-306-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:307:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-308-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-315-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:316:\tplat_dat-\u003estmmac_clk = stmmac_pltfr_find_clk(plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:317:\t\t\t\t\t\t data-\u003estmmac_clk_name);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-318-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-319-\tif (data-\u003eprobe)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:320:\t\tret = data-\u003eprobe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-321-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=343=static void dwc_eth_dwmac_remove(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-346-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:347:\tstmmac_dvr_remove(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-348-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=361=static struct platform_driver dwc_eth_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-365-\t\t.name = \"dwc-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:366:\t\t.pm = \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-367-\t\t.of_match_table = dwc_eth_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-19-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:20:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-21-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=167=static int eic7700_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-170-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:171:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-172-\tstruct eic7700_qos_priv dwc_priv;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-175-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:176:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-177-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-180-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:181:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-182-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-323-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:324:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:325:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-326-\tplat_dat-\u003eclks_config = eic7700_clks_config;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-334-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:335:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-336-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=362=static struct platform_driver eic7700_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-365-\t\t.name = \"eic7700-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:366:\t\t.pm = \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-367-\t\t.of_match_table = eic7700_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-16-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:17:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-18-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=19=static int dwmac_generic_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-21-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:22:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-23-\tint ret;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-24-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:25:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-26-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-29-\tif (pdev-\u003edev.of_node) {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:30:\t\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-31-\t\tif (IS_ERR(plat_dat)) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-48-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:49:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-50-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=69=static struct platform_driver dwmac_generic_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-72-\t\t.name = STMMAC_RESOURCE_NAME,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:73:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-74-\t\t.of_match_table = dwmac_generic_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-22-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:23:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-24-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=44=struct imx_dwmac_ops {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-48-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:49:\tint (fix_soc_reset)(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-50-\tint (set_intf_mode)(struct imx_priv_data dwmac, u8 phy_intf_sel);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=154=static int imx_dwmac_set_clk_tx_rate(void bsp_priv, struct clk clk_tx_i,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-160-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:161:\treturn stmmac_set_clk_tx_rate(bsp_priv, clk_tx_i, interface, speed);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-162-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=190=static void imx93_dwmac_fix_speed(void priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-228-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:229:static int imx_dwmac_mx93_reset(struct stmmac_priv priv)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-230-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=293=static int imx_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-295-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:296:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-297-\tstruct imx_priv_data dwmac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-300-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:301:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-302-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-308-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:309:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-310-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-338-\tdwmac-\u003eplat_dat = plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:339:\tdwmac-\u003ebase_addr = stmmac_res.addr;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-340-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-353-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:354:\tret = stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-355-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=392=static struct platform_driver imx_dwmac_driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-393-\t.probe = imx_dwmac_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:394:\t.remove = stmmac_pltfr_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-395-\t.driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-396-\t\t.name = \"imx-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:397:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-398-\t\t.of_match_table = imx_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-20-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:21:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-22-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=154=static int ingenic_mac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-156-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:157:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-158-\tstruct ingenic_mac mac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-162-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:163:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-164-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-166-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:167:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-168-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-214-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:215:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-216-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=272=static struct platform_driver ingenic_mac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-275-\t\t.name\t= \"ingenic-mac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:276:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-277-\t\t.of_match_table = ingenic_mac_of_matches,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-15-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:16:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-17-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=42=static int intel_eth_plat_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-44-\tstruct plat_stmmacenet_data plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:45:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-46-\tstruct intel_dwmac dwmac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-49-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:50:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-51-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-53-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:54:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-55-\tif (IS_ERR(plat_dat)) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-114-\tplat_dat-\u003eclk_tx_i = dwmac-\u003etx_clk;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:115:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-116-\tplat_dat-\u003ebsp_priv = dwmac;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-117-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:118:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-119-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=130=static void intel_eth_plat_remove(struct platform_device pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-131-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:132:\tstruct intel_dwmac dwmac = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-133-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:134:\tstmmac_pltfr_remove(pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-135-\tif (dwmac-\u003edata-\u003etx_clk_en)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=139=static struct platform_driver intel_eth_plat_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-143-\t\t.name\t\t= \"intel-eth-plat\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:144:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-145-\t\t.of_match_table = intel_eth_plat_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-12-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:13:#include \"stmmac_ptp.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-14-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=25=struct intel_priv_data {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-39- /\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:40:struct stmmac_pci_func_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-41-\tunsigned int func;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-44-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:45:struct stmmac_pci_dmi_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:46:\tconst struct stmmac_pci_func_data func;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-47-\tsize_t nfuncs;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-49-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:50:struct stmmac_pci_info {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-51-\tint (setup)(struct pci_dev pdev, struct plat_stmmacenet_data *plat);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=91=static const int adln_tsn_lane_regs[] = {6};\n\n" }
11/2	2026/09/14 19:27	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 42118 output: 48 thoughts: 1455 Thoughts: Analyzing the STMMAC VLAN Handling Patch Okay, let's break this down. First, I see they've removed the `stmmac_rx_vlan` function. This is interesting. This function was responsible for driver-level VLAN tag stripping. It looks like it was being called when hardware VLAN acceleration wasn't enabled. The diff shows this function being called when `priv->hw->hw_vlan_en` is false. They've effectively replaced this driver-level VLAN handling with a check of `priv->hw->hw_vlan_en` being true in the `stmmac_dispatch_skb_zc` and `stmmac_rx` functions. Looking further, in the `__stmmac_dvr_probe` function, I notice they're now setting `NETIF_F_HW_VLAN_CTAG_RX` unconditionally for XMAC based cores. Previously, this feature and `NETIF_F_HW_VLAN_STAG_RX` were set. This suggests that with XMAC cores, hardware VLAN acceleration for C-TAGs is now always enabled, and there's no longer a need for the driver to handle VLAN stripping. This seems like a simplification. Also, the `NETIF_F_HW_VLAN_STAG_RX` has been dropped. The changes in `stmmac_selftests.c` appear to involve the phylink clock. They are stopping and then unblocking the phylink rx clock before and after the test. My immediate thought is that this is a move to standardize VLAN handling in the STMMAC driver, relying on the hardware capabilities of the XMAC core. This could improve performance by offloading the VLAN processing to the hardware. The previous driver-level implementation was probably a fallback for older hardware or configurations where hardware acceleration wasn't available, or perhaps the support has just become more robust. I'll need to check the commit log to understand the rationale behind removing `NETIF_F_HW_VLAN_STAG_RX` and ensure there are no regressions.
12/2	2026/09/14 19:27	tool	grepper	0m Error: no matches Args: { "Expression": "commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5" } Results: { "error": "no matches" }
13/2	2026/09/14 19:27	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 44082 output: 50 thoughts: 59 Thoughts: Navigating the Git Landscape Okay, so the current commit is just HEAD, which means I have a starting point, but I need to dig deeper. Grepping for the commit hash directly won't be fruitful within the files themselves - that's a common oversight, I know. Instead of a direct search, let's try a more targeted approach. Given the context, my initial thought is to examine `stmmac_main.c` around line 7960 to 7980. That region often contains crucial driver logic, and it seems a promising spot to start tracing the changes related to what I'm looking for, given the hints from previous analysis. Let's see if that specific area holds any clues.
14/2	2026/09/14 19:28	tool	read-file	0m Args: { "File": "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c", "FirstLine": 7960, "LineCount": 40 } Results: { "Contents": "7960:\t\t\t\t\tgoto error_hw_init;\n7961:\t\t\t\t}\n7962:\t\n7963:\t\t\t\tpriv-\u003edma_cap.host_dma_width = 32;\n7964:\t\t\t}\n7965:\t\t}\n7966:\t\n7967:\t\tndev-\u003efeatures \|= ndev-\u003ehw_features \| NETIF_F_HIGHDMA;\n7968:\t\tndev-\u003ewatchdog_timeo = msecs_to_jiffies(watchdog);\n7969:\t#ifdef STMMAC_VLAN_TAG_USED\n7970:\t\tif (dwmac_is_xmac(priv-\u003eplat-\u003ecore_type)) {\n7971:\t\t\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_CTAG_RX;\n7972:\t\t\tndev-\u003ehw_features \|= NETIF_F_HW_VLAN_CTAG_RX;\n7973:\t\t\tpriv-\u003ehw-\u003ehw_vlan_en = true;\n7974:\t\t}\n7975:\t\tif (priv-\u003edma_cap.vlhash) {\n7976:\t\t\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_CTAG_FILTER;\n7977:\t\t\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_STAG_FILTER;\n7978:\t\t}\n7979:\t\tif (priv-\u003edma_cap.vlins)\n7980:\t\t\tndev-\u003efeatures \|= NETIF_F_HW_VLAN_CTAG_TX;\n7981:\t#endif\n7982:\t\tpriv-\u003emsg_enable = netif_msg_init(debug, default_msg_level);\n7983:\t\n7984:\t\tpriv-\u003exstats.threshold = tc;\n7985:\t\n7986:\t\t/* Initialize RSS /\n7987:\t\trxq = priv-\u003eplat-\u003erx_queues_to_use;\n7988:\t\tnetdev_rss_key_fill(priv-\u003erss.key, sizeof(priv-\u003erss.key));\n7989:\t\tfor (i = 0; i \u003c ARRAY_SIZE(priv-\u003erss.table); i++)\n7990:\t\t\tpriv-\u003erss.table[i] = ethtool_rxfh_indir_default(i, rxq);\n7991:\t\n7992:\t\tif (priv-\u003edma_cap.rssen \u0026\u0026 priv-\u003eplat-\u003erss_en)\n7993:\t\t\tndev-\u003efeatures \|= NETIF_F_RXHASH;\n7994:\t\n7995:\t\tndev-\u003evlan_features \|= ndev-\u003efeatures;\n7996:\t\n7997:\t\t/ MTU range: 46 - hw-specific max */\n7998:\t\tndev-\u003emin_mtu = ETH_ZLEN - ETH_HLEN;\n7999:\t\n" }
15/2	2026/09/14 19:28	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 45083 output: 42 thoughts: 437 Thoughts: Analyzing the Reachability of STMMAC for Fuzzing Okay, let's break this down. The question at hand is whether changes to the `stmmac` driver warrant fuzzing. The guidelines are clear: return `WorthFuzzing=false` if the code modifications are structurally unreachable, and they give examples like vendor-specific hardware or driver teardown callbacks. Conversely, we return `WorthFuzzing=true` if the changes touch reachable executable code, particularly drivers accessible through virtual buses. The core of my thought process is: Is `stmmac` structurally unreachable in a standard QEMU environment, specifically amd64? Can I instantiate and probe it within a typical QEMU setup? To determine this, let's focus on identifying if the `stmmac` driver is accessible through virtual buses, like virtio or loopback, or any emulated devices. First, I need to confirm what `stmmac` is. It's the Synopsys DesignWare Ethernet MAC driver and STMicroelectronics MAC driver, located in `drivers/net/ethernet/stmicro/stmmac/`. That's a good starting point. Next, how is it probed or instantiated? I'll need to dig into the `Kconfig` file in that directory, `drivers/net/ethernet/stmicro/stmmac/Kconfig`, to see what architectures or configurations enable it. If it's dependent on a specific physical hardware that's not emulated or virtualized, then it's a "no." But, if it can be enabled on amd64 in a QEMU setup with a virtual device, then it's a "yes." Let's see what `Kconfig` reveals.
16/2	2026/09/14 19:28	tool	read-file	0m Args: { "File": "drivers/net/ethernet/stmicro/stmmac/Kconfig", "FirstLine": 1, "LineCount": 60 } Results: { "Contents": " 1:\t# SPDX-License-Identifier: GPL-2.0-only\n 2:\tconfig STMMAC_ETH\n 3:\t\ttristate \"STMicroelectronics Multi-Gigabit Ethernet driver\"\n 4:\t\tdepends on HAS_IOMEM \u0026\u0026 HAS_DMA\n 5:\t\tdepends on PTP_1588_CLOCK_OPTIONAL\n 6:\t\tdepends on ETHTOOL_NETLINK\n 7:\t\tselect MII\n 8:\t\tselect PCS_XPCS\n 9:\t\tselect PAGE_POOL\n 10:\t\tselect PHYLINK\n 11:\t\tselect CRC32\n 12:\t\tselect RESET_CONTROLLER\n 13:\t\tselect NET_DEVLINK\n 14:\t\thelp\n 15:\t\t This is the driver for the Ethernet IPs built around a\n 16:\t\t Synopsys IP Core.\n 17:\t\n 18:\tif STMMAC_ETH\n 19:\t\n 20:\tconfig STMMAC_SELFTESTS\n 21:\t\tbool \"Support for STMMAC Selftests\"\n 22:\t\tdepends on INET\n 23:\t\tdefault n\n 24:\t\thelp\n 25:\t\t This adds support for STMMAC Selftests using ethtool. Enable this\n 26:\t\t feature if you are facing problems with your HW and submit the test\n 27:\t\t results to the netdev Mailing List.\n 28:\t\n 29:\tconfig STMMAC_PLATFORM\n 30:\t\ttristate \"STMMAC Platform bus support\"\n 31:\t\tselect MFD_SYSCON\n 32:\t\tdefault y\n 33:\t\thelp\n 34:\t\t This selects the platform specific bus support for the stmmac driver.\n 35:\t\t This is the driver used on several SoCs:\n 36:\t\t STi, Allwinner, Amlogic Meson, Altera SOCFPGA.\n 37:\t\n 38:\t\t If you have a controller with this interface, say Y or M here.\n 39:\t\n 40:\t\t If unsure, say N.\n 41:\t\n 42:\tif STMMAC_PLATFORM\n 43:\t\n 44:\tconfig DWMAC_DWC_QOS_ETH\n 45:\t\ttristate \"Support for snps,dwc-qos-ethernet.txt DT binding.\"\n 46:\t\tselect CRC32\n 47:\t\tselect MII\n 48:\t\tdepends on OF \u0026\u0026 HAS_DMA\n 49:\t\thelp\n 50:\t\t Support for chips using the snps,dwc-qos-ethernet.txt DT binding.\n 51:\t\n 52:\tconfig DWMAC_GENERIC\n 53:\t\ttristate \"Generic driver for DWMAC\"\n 54:\t\tdefault STMMAC_PLATFORM\n 55:\t\thelp\n 56:\t\t Generic DWMAC driver for platforms that don't require any\n 57:\t\t platform specific code to function or is using platform\n 58:\t\t data for setup.\n 59:\t\n 60:\tconfig DWMAC_ANARION\n" }
17/2	2026/09/14 19:28	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 46727 output: 44 thoughts: 12 Thoughts: Here's my summary, as though I'm thinking it: PCI Configuration Exploration Alright, time to dive into the PCI-specific configurations within `Kconfig`. I need to get a clear picture of how things are structured and what options are available. Understanding the PCI section of `Kconfig` is crucial; it's the foundation for configuring device drivers and platform support related to PCI devices. I'm looking for the key variables, dependencies, and default settings. This will inform my next steps in [ insert relevant task/project - e.g., enabling a specific device, resolving a conflict, optimizing power usage, understanding a particular driver ]. Let's see what we've got.
18/2	2026/09/14 19:28	tool	read-file	0m Args: { "File": "drivers/net/ethernet/stmicro/stmmac/Kconfig", "FirstLine": 370, "LineCount": 50 } Results: { "Contents": " 370:\t\n 371:\tendif # STMMAC_PLATFORM\n 372:\t\n 373:\tconfig STMMAC_LIBPCI\n 374:\t\ttristate\n 375:\t\thelp\n 376:\t\t This option enables the PCI bus helpers for the stmmac driver.\n 377:\t\n 378:\tconfig DWMAC_INTEL\n 379:\t\ttristate \"Intel GMAC support\"\n 380:\t\tdefault X86\n 381:\t\tdepends on X86 \u0026\u0026 PCI\n 382:\t\tdepends on COMMON_CLK\n 383:\t\tdepends on ACPI\n 384:\t\thelp\n 385:\t\t This selects the Intel platform specific bus support for the\n 386:\t\t stmmac driver. This driver is used for Intel Quark/EHL/TGL.\n 387:\t\n 388:\tconfig DWMAC_LOONGSON\n 389:\t\ttristate \"Loongson PCI DWMAC support\"\n 390:\t\tdefault MACH_LOONGSON64\n 391:\t\tdepends on (MACH_LOONGSON64 \|\| COMPILE_TEST) \u0026\u0026 PCI\n 392:\t\tdepends on COMMON_CLK\n 393:\t\tselect STMMAC_LIBPCI\n 394:\t\thelp\n 395:\t\t This selects the LOONGSON PCI bus support for the stmmac driver,\n 396:\t\t Support for ethernet controller on Loongson-2K1000 SoC and LS7A1000 bridge.\n 397:\t\n 398:\tconfig DWMAC_MOTORCOMM\n 399:\t\ttristate \"Motorcomm PCI DWMAC support\"\n 400:\t\tdepends on PCI\n 401:\t\tselect MOTORCOMM_PHY\n 402:\t\tselect STMMAC_LIBPCI\n 403:\t\thelp\n 404:\t\t This enables glue driver for Motorcomm DWMAC-based PCI Ethernet\n 405:\t\t controllers. Currently only YT6801 is supported.\n 406:\t\n 407:\tconfig STMMAC_PCI\n 408:\t\ttristate \"STMMAC PCI bus support\"\n 409:\t\tdepends on PCI\n 410:\t\tdepends on COMMON_CLK\n 411:\t\tselect STMMAC_LIBPCI\n 412:\t\thelp\n 413:\t\t This selects the platform specific bus support for the stmmac driver.\n 414:\t\t This driver was tested on XLINX XC2V3000 FF1152AMT0221\n 415:\t\t D1215994A VIRTEX FPGA board and SNPS QoS IPK Prototyping Kit.\n 416:\t\n 417:\t\t If you have a controller with this interface, say Y or M here.\n 418:\t\n 419:\t\t If unsure, say N.\n" }
19/2	2026/09/14 19:28	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 47687 output: 29 thoughts: 658 Thoughts: My QEMU Networking Conundrum Okay, so I'm looking at different DWMAC and STMMAC drivers: `DWMAC_INTEL` for Intel Quark/EHL/TGL, `DWMAC_LOONGSON`, `DWMAC_MOTORCOMM`, `STMMAC_PCI` for Xilinx FPGA and Synopsys prototyping, and `STMMAC_PLATFORM` for a slew of ARM, MIPS, and RISC-V SoCs like STi, Allwinner, Rockchip, Tegra, i.MX8, etc. My primary question is whether QEMU offers any emulation of the Intel GMAC (Quark, EHL, TGL) or Synopsys GMAC, especially considering I'm working with an x86/amd64 target. Let me refresh my memory of the available PCI network devices in QEMU. Peeking into `hw/net/`, I see familiar names like e1000, rtl8139, pcnet, virtio, various Sun Microsystems devices, and a few ARM-specific NICs like the Aspeed AST2400/AST2500, Freescale i.MX FEC, Xilinx Zynq, and Allwinner H3. Wait a minute, what about that Allwinner entry? The `allwinner-sun8i-emac.c` driver is for the A83T/H3 EMAC, which in Linux is sun8i-emac, or dwmac-sun8i. I have to keep in mind, even if it's ARM, my target is amd64! The crux of the matter: Is there an emulated DWMAC or STMMAC device in QEMU for x86/amd64? After reviewing the existing drivers, the answer appears to be a definitive no. QEMU doesn't seem to emulate Intel Quark / Elkhart Lake / Tiger Lake GMAC PCI devices, nor does it appear to have STMMAC PCI cards (0x0700:0x1108) or Synopsys prototyping kits emulated. Now, a secondary, but related, question: Is there a way for a userspace interface to bind to or create a STMMAC device on my host? I'll need to investigate whether there are any virtual STMMAC devices in Linux, searching the `drivers/` or `arch/x86/` directories. This is critical to the potential of a solution.
20/2	2026/09/14 19:28	tool	grepper	0m Error: no matches Args: { "Expression": "stmmac", "PathPrefix": "arch/x86/" } Results: { "error": "no matches" }
21/2	2026/09/14 19:28	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 48933 output: 25 thoughts: 23 Thoughts: Here's a summary of my thought process, as requested: Checking for Test-Driven STMMAC Creation Okay, before I dive too deep into this, I need to take a quick step back and make sure I'm not reinventing the wheel. My initial thought is, "Wait, before I start writing new code or debugging something elaborate, could there already be a test, possibly in the `tools/testing` directory or something similar, that actually creates an STMMAC instance?" It's entirely possible that a pre-existing test might already be doing what I need, making this entire process much simpler. Or, perhaps any of the other existing tests will create the necessary object, as part of their operations. I want to check for existing functionality before I invest more time and effort. I'll need to look closely at existing tests, and the dependencies within those tests, to see if I can leverage anything there. Time is always of the essence, and finding an existing example is always faster.
22/2	2026/09/14 19:29	tool	grepper	0m Error: no matches Args: { "Expression": "stmmac", "PathPrefix": "tools/" } Results: { "error": "no matches" }
23/2	2026/09/14 19:29	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 49207 output: 32 thoughts: 70 Thoughts: Investigating Ethernet Device Creation Okay, let's dive into this. I need to understand how these Ethernet devices are initialized, so my first instinct is to look at the standard place, the `drivers/net/ethernet/stmicro/stmmac/` directory. That seems like a logical starting point for understanding Ethernet device driver creation. But, I'm trying to figure out if there is some platform device creation happening outside the obvious places, specifically, if any x86 code is responsible for this. Let me check for platform device creation in relation to Intel or STMicroelectronics devices. So, I will try searching for the PCI ID tables, looking for something like `intel_eth_pci_id_table` or `stmmac_id_table`. That will give me a quick way to see if there's any platform-specific binding going on that I need to be aware of. I'll use those tables as my search terms. That should pinpoint relevant initialization paths if those IDs are being used.
24/2	2026/09/14 19:29	tool	grepper	0m Args: { "Expression": "intel_eth_pci_id_table", "PathPrefix": "drivers/" } Results: { "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1362=static void intel_eth_pci_remove(struct pci_dev *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1394-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1395:static const struct pci_device_id intel_eth_pci_id_table[] = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1396-\t{ PCI_DEVICE_DATA(INTEL, QUARK, \u0026quark_info) },\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1414-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1415:MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1416-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1417=static struct pci_driver intel_eth_pci_driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1418-\t.name = \"intel-eth-pci\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1419:\t.id_table = intel_eth_pci_id_table,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1420-\t.probe = intel_eth_pci_probe,\n" }
25/2	2026/09/14 19:29	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 49980 output: 42 thoughts: 143 Thoughts: Investigating the Reachability of Ethernet Self-Tests Okay, so I'm digging into network driver testing, specifically thinking about how syzkaller might be able to trigger certain functionality. The `dwmac-intel.c` file is interesting, clearly for Intel's Quark, Elkhart Lake, Tiger Lake, and Jasper Lake SoCs. But hold on, the standard QEMU x86_64 virt machine (pc / q35) doesn't emulate any of those specifically. That makes direct execution a non-starter. Now, let's back up. Can syzkaller somehow get at the `stmmac_main.c` or `stmmac_selftests.c` code? That's the real question. Ah, wait! I'm onto something. Let's trace this. In `stmmac_selftest_run`, it's called by `ethtool_ops->self_test`! That's a good lead. Now I need to see where else `stmmac_selftest_run` is referenced to confirm that hypothesis. Hopefully there is a reasonable answer!
26/2	2026/09/14 19:29	tool	grepper	0m Args: { "Expression": "stmmac_selftest_run", "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/" } Results: { "Output": "drivers/net/ethernet/stmicro/stmmac/stmmac.h=432=struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-436-#if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:437:void stmmac_selftest_run(struct net_device dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-438-\t\t\t struct ethtool_test etest, u64 buf);\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h=440=int stmmac_selftest_get_count(struct stmmac_priv priv);\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-441-#else\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:442:static inline void stmmac_selftest_run(struct net_device dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-443-\t\t\t\t struct ethtool_test etest, u64 buf)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c=1095=static const struct ethtool_ops stmmac_ethtool_ops = {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c-1108-\t.set_pauseparam = stmmac_set_pauseparam,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c:1109:\t.self_test = stmmac_selftest_run,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c-1110-\t.get_ethtool_stats = stmmac_get_ethtool_stats,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c=1831=static const struct stmmac_test {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c-1931-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c:1932:void stmmac_selftest_run(struct net_device dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c-1933-\t\t\t struct ethtool_test etest, u64 buf)\n" }
27/2	2026/09/14 19:29	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 51120 output: 30 thoughts: 158 Thoughts: My Reasoning on the stmmac Driver Okay, so I'm looking at this `stmmac` code and trying to understand its structure and call flow. It looks like the `stmmac_ethtool_ops.self_test` function is specifically designed to work on a network device (`ndev`) that the `stmmac` driver itself has registered. That makes sense, keeps things organized. Then I see that functions like `stmmac_rx`, `stmmac_dispatch_skb_zc`, and `__stmmac_dvr_probe` are all internal to the `stmmac` driver. Ah ha! They're not meant to be called from the outside. Hold on a second... to use any of those internal functions, the `stmmac` network device has to exist first. It has to be probed and initialized by the driver! So the creation of that network device is key. I need to trace back from those internal functions to how the `stmmac` device actually gets set up. Alright, let's see... `__stmmac_dvr_probe` is called by `stmmac_dvr_probe`. Okay, so `stmmac_dvr_probe` is the entry point, the first place to look. Let's find out where `stmmac_dvr_probe` is called from. I'll use grep to check for where that function is used within the project.
28/2	2026/09/14 19:29	tool	grepper	0m Args: { "Expression": "stmmac_dvr_probe", "PathPrefix": "drivers/" } Results: { "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=42=static int intel_eth_plat_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-117-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:118:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-119-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1263=static int intel_eth_pci_probe(struct pci_dev pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1340-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1341:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1342-\tif (ret) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c=374=static int ipq806x_gmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-482-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c:483:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-484-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c=498=static int loongson_dwmac_probe(struct pci_dev pdev, const struct pci_device_id id)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-561-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c:562:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-563-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c=42=static int lpc18xx_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-67-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c:68:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-69-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c=599=static int mediatek_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-641-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:642:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-643-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c=47=static int meson6_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-72-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:73:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-74-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c=382=static int meson8b_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-463-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c:464:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-465-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c=293=static int motorcomm_probe(struct pci_dev pdev, const struct pci_device_id id)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-358-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c:359:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-360-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c=48=static int rzn1_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-67-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c:68:\tret = stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-69-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c=35=static int sophgo_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-64-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:65:\treturn stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-66-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c=147=static int spacemit_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-206-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c:207:\treturn stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-208-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c=90=static int starfive_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-152-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c:153:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-154-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c=525=static int stm32_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-578-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c:579:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-580-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c=1105=static int sun8i_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1201-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1202:\t/* the MAC is runtime suspended after stmmac_dvr_probe(), so we\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1203-\t * need to ensure the MAC resume back before other operations such\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1208-\t/* The mux must be registered after parent MDIO\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1209:\t * so after stmmac_dvr_probe()\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1210-\t /\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c=214=static int tegra_mgbe_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-375-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c:376:\terr = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-377-\tif (err \u003c 0)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c=205=static int visconti_eth_dwmac_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-236-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c:237:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-238-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h=411=void stmmac_dvr_remove(struct device dev);\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:412:int stmmac_dvr_probe(struct device device,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-413-\t\t struct plat_stmmacenet_data plat_dat,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c=7791=EXPORT_SYMBOL_GPL(stmmac_plat_dat_alloc);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-7792-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:7793:static int __stmmac_dvr_probe(struct device device,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-7794-\t\t\t struct plat_stmmacenet_data plat_dat,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8095-/*\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8096: stmmac_dvr_probe\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8097- * @dev: device pointer\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8104- /\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8105:int stmmac_dvr_probe(struct device dev, struct plat_stmmacenet_data plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8106-\t\t struct stmmac_resources res)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8115-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8116:\tret = __stmmac_dvr_probe(dev, plat_dat, res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8117-\tif (ret \u0026\u0026 plat_dat-\u003eexit)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8121-}\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8122:EXPORT_SYMBOL_GPL(stmmac_dvr_probe);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8123-\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c=118=static int stmmac_pci_probe(struct pci_dev pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-182-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:183:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-184-}\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c=846=int stmmac_pltfr_probe(struct platform_device pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c-854-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:855:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c-856-}\n" }
29/2	2026/09/14 19:29	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 55742 output: 161 thoughts: 2111 Thoughts: Analysis of Patch for Fuzzing Suitability Okay, let's break this down. My initial assessment is that this patch is not suitable for fuzzing. The key here is the "structurally unreachable" concept. My expertise tells me we need to determine if the modified code can actually execute within the target environment (amd64 with standard QEMU or GCE VMs). First, I observe that the patch impacts the `stmmac` driver, specifically within the `drivers/net/ethernet/stmicro/stmmac/` directory. Right away, this flags a red. My experience with these drivers says `stmmac` is heavily tied to specific hardware: mostly embedded SoCs and some specific Intel platforms. It's not a generic x86 device. I immediately think about the probe paths. The driver is either going to be bound through a platform driver (targeting specific hardware SoCs: STi, sunxi, Rockchip, MediaTek etc.) or through a PCI driver for specific vendor/device IDs. I know this from countless past engagements. These drivers require their respective hardware. None of these devices are emulated by standard QEMU on amd64 or GCE VMs. I remember this point explicitly being called out in the instructions. I double-check section 2 of the instructions, focusing on the "structurally unreachable hardware" clause. It explicitly calls out NIC drivers requiring physical ASIC/PCIe cards that aren't emulated in standard QEMU. That's a perfect fit! `stmmac` screams "specific hardware". Now, I try to double-check. I look in QEMU sources. Is there any emulation for the Synopsys DesignWare MAC (dwmac)? I find a reference to `allwinner-sun8i-emac.c`, but that's for an older EMAC and specifically for an Allwinner H3 SoC. I recognize that that's an ARM architecture, not amd64. Even if this EMAC emulation was using a dwmac driver, there's no way to run that ARM code on amd64. It's simply not possible. I go back and check the standard QEMU x86 machine types (PC, Q35, microvm) – do they have anything like `stmmac`? No. They have standard PCI network devices (Intel, Realtek, AMD, VirtIO), not anything tied to Synopsys DesignWare MAC or any of the SoCs `stmmac` typically supports. I know this list well. I consider if `stmmac` could be "faked" as a virtual device, platform device or mock driver. No. This driver is very dependent on memory-mapped I/O registers and DMA buffers associated with Synopsys DesignWare MAC registers. Without those registers, the driver can't probe, can't operate. No amount of virtualisation or mocking will change this. I'm now back to the key criteria and reread it: "REACHABILITY IS THE PRIMARY GATE." If the code can't execute in standard virtualization, it must not be fuzzed. And this patch modifies the execution paths of `stmmac_rx`, `stmmac_dispatch_skb_zc`, `__stmmac_dvr_probe`, and `stmmac_selftest_run`. These methods will never execute on standard x86 environments because there's no matching hardware. I examine the patch's scope. It's only touching `stmmac_main.c` and `stmmac_selftests.c`. It's not changing headers or core subsystems. This reinforces my conclusion. This narrows it down. My analysis now confirms this patch falls under the "structurally unreachable hardware" category, specifically: "Vendor-specific PCIe switches, SmartNICs, or GPU drivers...requiring physical ASIC/PCIe cards not emulated in standard QEMU." Let's now finalize the reasoning for the tool. Concise explanation is key: The patch modifies `drivers/net/ethernet/stmicro/stmmac/` code, which belongs to the Synopsys DesignWare/STMicroelectronics Ethernet MAC driver (`stmmac`). This code executes during device probe, packet reception, and self-tests. The targeted hardware controller is structurally absent in standard virtualized test environments (QEMU or GCE on amd64), and therefore the modified code is unreachable. I'm confident in calling `set-results` with: - `WorthFuzzing`: false - `FocusSymbols`: [] - `EnableConfigs`: [] - `Reasoning`: "The patch modifies the Synopsys DesignWare/STMicroelectronics Ethernet MAC driver (`stmmac`). Because
30/2	2026/09/14 19:30	tool	set-results	0m Args: { "EnableConfigs": [], "FocusSymbols": [], "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.", "WorthFuzzing": false } Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.", "WorthFuzzing": false }
31/1	2026/09/14 19:30	action	If	0m Args: { "WorthFuzzing": false } Results: null

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "KMSANReasoning": "",
  "NeedsKMSAN": false,
  "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.",
  "WorthFuzzing": false
}

{
  "PatchDiff": "commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Mon Sep 14 19:26:33 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\nindex 62c3441911e71..0d097094fa453 100644\n--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\n+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c\n@@ -5049,24 +5049,6 @@ static netdev_features_t stmmac_features_check(struct sk_buff *skb,\n \treturn vlan_features_check(skb, features);\n }\n \n-static void stmmac_rx_vlan(struct net_device *dev, struct sk_buff *skb)\n-{\n-\tstruct vlan_ethhdr *veth = skb_vlan_eth_hdr(skb);\n-\t__be16 vlan_proto = veth-\u003eh_vlan_proto;\n-\tu16 vlanid;\n-\n-\tif ((vlan_proto == htons(ETH_P_8021Q) \u0026\u0026\n-\t     dev-\u003efeatures \u0026 NETIF_F_HW_VLAN_CTAG_RX) ||\n-\t    (vlan_proto == htons(ETH_P_8021AD) \u0026\u0026\n-\t     dev-\u003efeatures \u0026 NETIF_F_HW_VLAN_STAG_RX)) {\n-\t\t/* pop the vlan tag */\n-\t\tvlanid = ntohs(veth-\u003eh_vlan_TCI);\n-\t\tmemmove(skb-\u003edata + VLAN_HLEN, veth, ETH_ALEN * 2);\n-\t\tskb_pull(skb, VLAN_HLEN);\n-\t\t__vlan_hwaccel_put_tag(skb, vlan_proto, vlanid);\n-\t}\n-}\n-\n /**\n  * stmmac_rx_refill - refill used skb preallocated buffers\n  * @priv: driver private structure\n@@ -5435,9 +5417,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv *priv, u32 queue,\n \tif (priv-\u003ehw-\u003ehw_vlan_en)\n \t\t/* MAC level stripping. */\n \t\tstmmac_rx_hw_vlan(priv, priv-\u003ehw, p, skb);\n-\telse\n-\t\t/* Driver level stripping. */\n-\t\tstmmac_rx_vlan(priv-\u003edev, skb);\n+\n \tskb-\u003eprotocol = eth_type_trans(skb, priv-\u003edev);\n \n \tif (unlikely(!coe) || !stmmac_has_ip_ethertype(skb))\n@@ -5929,9 +5909,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)\n \t\tif (priv-\u003ehw-\u003ehw_vlan_en)\n \t\t\t/* MAC level stripping. */\n \t\t\tstmmac_rx_hw_vlan(priv, priv-\u003ehw, p, skb);\n-\t\telse\n-\t\t\t/* Driver level stripping. */\n-\t\t\tstmmac_rx_vlan(priv-\u003edev, skb);\n \n \t\tskb-\u003eprotocol = eth_type_trans(skb, priv-\u003edev);\n \n@@ -7990,9 +7967,8 @@ static int __stmmac_dvr_probe(struct device *device,\n \tndev-\u003efeatures |= ndev-\u003ehw_features | NETIF_F_HIGHDMA;\n \tndev-\u003ewatchdog_timeo = msecs_to_jiffies(watchdog);\n #ifdef STMMAC_VLAN_TAG_USED\n-\t/* Both mac100 and gmac support receive VLAN tag detection */\n-\tndev-\u003efeatures |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX;\n \tif (dwmac_is_xmac(priv-\u003eplat-\u003ecore_type)) {\n+\t\tndev-\u003efeatures |= NETIF_F_HW_VLAN_CTAG_RX;\n \t\tndev-\u003ehw_features |= NETIF_F_HW_VLAN_CTAG_RX;\n \t\tpriv-\u003ehw-\u003ehw_vlan_en = true;\n \t}\ndiff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\nindex 6372ec7c3f317..ea2e7bdcbe81e 100644\n--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\n+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c\n@@ -1959,12 +1959,14 @@ void stmmac_selftest_run(struct net_device *dev,\n \t\treturn;\n \t}\n \n+\tphylink_rx_clk_stop_block(priv-\u003ephylink);\n \tfor (i = 0; i \u003c count; i++) {\n \t\tret = stmmac_selftests[i].fn(priv);\n \t\tif (ret \u0026\u0026 (ret != -EOPNOTSUPP))\n \t\t\tetest-\u003eflags |= ETH_TEST_FL_FAILED;\n \t\tbuf[i] = ret;\n \t}\n+\tphylink_rx_clk_stop_unblock(priv-\u003ephylink);\n \n \tstmmac_set_mac_loopback(priv, priv-\u003eioaddr, false);\n }\n"
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.",
  "WorthFuzzing": false
}

You are an expert Linux kernel maintainer and security engineer.
Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on internal assumptions. You must actively use your code access
tools to inspect the actual source code, callers, and surrounding context.

================================================================================
1. CORE TRIAGE PHILOSOPHY
================================================================================
The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs,
and newly triggered assertions introduced by the patch series.

- REACHABILITY IS THE PRIMARY GATE:
  Fuzzing can only discover bugs in code that can actually execute in standard virtualized
  environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap).
  If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed,
  regardless of whether it adds assertions or complex logic.

- DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS:
  Patch authors routinely label changes as "cleanups", "refactorings", or state
  "No functional change intended". Do NOT take these claims at face value.
  Code refactorings that rearrange logic, introduce helper functions, or alter state management
  in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs.
  If reachable executable code is modified or refactored, it MUST be fuzzed.

- NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED:
  When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON*, VM_WARN_ON*,
  BUG_ON*, lockdep_assert*) in reachable code paths, it enforces new or stricter invariants.
  Even if the author believes the invariant always holds, fuzzing is essential to verify whether
  an unusual sequence of operations can violate it.

================================================================================
2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA)
================================================================================
Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories:

- Non-kernel and non-executable changes:
  * Modifications to Documentation/, comments, or spelling fixes.
  * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/)
    that do not affect the compiled kernel image (vmlinux) or kernel modules.
  * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints
    that do not alter control flow or data structures.
  * Build system or Kconfig changes that do not alter compiled C logic.
- Structurally unreachable hardware:
  * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed,
    ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU.
- Unreachable execution paths:
  * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during
    physical PCI hot-unplug or manual sysfs driver unbinding.
  * Code paths exclusive to architectures other than the target architecture.

================================================================================
3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA)
================================================================================
Return WorthFuzzing=true whenever the patch touches reachable executable code, including:
- Core Subsystems:
  * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/),
    BPF, scheduler, core networking, VFS, or syscall handling.
- Refactorings and Code Cleanups:
  * Any restructuring of reachable data structures, helper abstractions, or algorithm flows.
- Runtime Assertions and Defensive Checks:
  * Any introduction or alteration of assertions (WARN_ON*, VM_WARN_ON*, BUG_ON*, etc.) in reachable paths.
- Reachable Drivers and Protocols:
  * Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.).

================================================================================
4. EXTRACTING FocusSymbols (PREVENTING DILUTION)
================================================================================
When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer:

- AVOID UBIQUITOUS LIFECYCLE HOT-PATHS:
  Do NOT list generic, ubiquitous functions called by almost every program in the corpus
  (including, but not limited to: general memory allocators and deallocators, page fault
  and trap handlers, or core synchronization primitives; this is not an exhaustive list).
  Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused",
  which severely dilutes fuzzing effort away from the actual changes.

- TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS:
  List functions that specifically implement the logic being added or altered, or direct API entrypoints
  for the subsystem feature under review.

- HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h):
  Compiler-inlined static functions (such as static inlines in mm/*.h or include/linux/*.h) lack
  distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters.
  If the changes are primarily in static inline helpers, identify non-static, feature-specific caller
  functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers).

================================================================================
5. IDENTIFYING EnableConfigs
================================================================================
Identify any specific CONFIG_ options required to properly compile and reach the modified code:
- Inspect Kconfig files and #ifdef guards; do not make assumptions.
- Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed.
- Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Target architecture: amd64

For your convenience, here is the diff of the changes:
commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5
Author: syz-cluster <triage@syzkaller.com>
Date:   Mon Sep 14 19:26:33 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 62c3441911e71..0d097094fa453 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5049,24 +5049,6 @@ static netdev_features_t stmmac_features_check(struct sk_buff *skb,
 	return vlan_features_check(skb, features);
 }
 
-static void stmmac_rx_vlan(struct net_device *dev, struct sk_buff *skb)
-{
-	struct vlan_ethhdr *veth = skb_vlan_eth_hdr(skb);
-	__be16 vlan_proto = veth->h_vlan_proto;
-	u16 vlanid;
-
-	if ((vlan_proto == htons(ETH_P_8021Q) &&
-	     dev->features & NETIF_F_HW_VLAN_CTAG_RX) ||
-	    (vlan_proto == htons(ETH_P_8021AD) &&
-	     dev->features & NETIF_F_HW_VLAN_STAG_RX)) {
-		/* pop the vlan tag */
-		vlanid = ntohs(veth->h_vlan_TCI);
-		memmove(skb->data + VLAN_HLEN, veth, ETH_ALEN * 2);
-		skb_pull(skb, VLAN_HLEN);
-		__vlan_hwaccel_put_tag(skb, vlan_proto, vlanid);
-	}
-}
-
 /**
  * stmmac_rx_refill - refill used skb preallocated buffers
  * @priv: driver private structure
@@ -5435,9 +5417,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv *priv, u32 queue,
 	if (priv->hw->hw_vlan_en)
 		/* MAC level stripping. */
 		stmmac_rx_hw_vlan(priv, priv->hw, p, skb);
-	else
-		/* Driver level stripping. */
-		stmmac_rx_vlan(priv->dev, skb);
+
 	skb->protocol = eth_type_trans(skb, priv->dev);
 
 	if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb))
@@ -5929,9 +5909,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 		if (priv->hw->hw_vlan_en)
 			/* MAC level stripping. */
 			stmmac_rx_hw_vlan(priv, priv->hw, p, skb);
-		else
-			/* Driver level stripping. */
-			stmmac_rx_vlan(priv->dev, skb);
 
 		skb->protocol = eth_type_trans(skb, priv->dev);
 
@@ -7990,9 +7967,8 @@ static int __stmmac_dvr_probe(struct device *device,
 	ndev->features |= ndev->hw_features | NETIF_F_HIGHDMA;
 	ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
 #ifdef STMMAC_VLAN_TAG_USED
-	/* Both mac100 and gmac support receive VLAN tag detection */
-	ndev->features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX;
 	if (dwmac_is_xmac(priv->plat->core_type)) {
+		ndev->features |= NETIF_F_HW_VLAN_CTAG_RX;
 		ndev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
 		priv->hw->hw_vlan_en = true;
 	}
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
index 6372ec7c3f317..ea2e7bdcbe81e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
@@ -1959,12 +1959,14 @@ void stmmac_selftest_run(struct net_device *dev,
 		return;
 	}
 
+	phylink_rx_clk_stop_block(priv->phylink);
 	for (i = 0; i < count; i++) {
 		ret = stmmac_selftests[i].fn(priv);
 		if (ret && (ret != -EOPNOTSUPP))
 			etest->flags |= ETH_TEST_FL_FAILED;
 		buf[i] = ret;
 	}
+	phylink_rx_clk_stop_unblock(priv->phylink);
 
 	stmmac_set_mac_loopback(priv, priv->ioaddr, false);
 }

							input: 4081
							output: 37
							thoughts: 152

**Evaluating this Linux Kernel Patch Series**

Okay, so the user wants me to take a look at this patch series, focusing on the Linux kernel. First things first, let's see what the changes involve. Looks like it's touching `drivers/net/ethernet/stmicro/stmmac/stmmac_main.c` and `drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c`. Hmm, `stmicro/stmmac`... that's the Synopsys DesignWare Ethernet MAC, often used in STMicroelectronics SoCs, right? Now, the crucial question: is this hardware accessible within a typical test environment like QEMU or syzkaller? It's critical for us to confirm this early on, or this could be dead in the water for fuzzing and automated testing.

Right, time to check. I need to figure out if stmmac is exposed via PCI devices, platform devices, or if there's any QEMU emulation. The easiest way to do that is probably to leverage `grepper` – I'll run a quick search to see what drivers actually attach to this subsystem. That will give me a clear picture of how accessible this hardware actually is within our test infrastructure.

{
  "Expression": "stmmac",
  "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/"
}

{
  "Output": "\nFull output is too long, showing 500 out of 11578 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=29=config STMMAC_PLATFORM\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-33-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:34:\t  This selects the platform specific bus support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-35-\t  This is the driver used on several SoCs:\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=60=config DWMAC_ANARION\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-66-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:67:\t  This selects the Anarion SoC glue layer support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-68-\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=78=config DWMAC_INGENIC\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-85-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:86:\t  This selects Ingenic SoCs glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-87-\t  device driver. This driver is used on for the Ingenic SoCs\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=90=config DWMAC_IPQ806X\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-97-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:98:\t  This selects the IPQ806x SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-99-\t  device driver. This driver does not use any of the hardware\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=114=config DWMAC_MEDIATEK\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-119-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:120:\t  This selects the MT2712 SoC support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-121-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=122=config DWMAC_MESON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-129-\t  This selects the Amlogic Meson SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:130:\t  the stmmac device driver. This driver is used for Meson6,\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-131-\t  Meson8, Meson8b and GXBB SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=133=config DWMAC_NUVOTON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-141-\t  This selects the Nuvoton MA35 series SoC glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:142:\t  for the stmmac device driver. The nuvoton-dwmac driver is\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-143-\t  used for MA35 series SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=145=config DWMAC_QCOM_ETHQOS\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-152-\t  This selects the Qualcomm ETHQOS glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:153:\t  stmmac device driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-154-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=155=config DWMAC_RENESAS_GBETH\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-163-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:164:\t  This selects Renesas SoC glue layer support for the stmmac device\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-165-\t  driver. This driver is used for the RZ/V2H(P) family, RZ/T2H and\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=168=config DWMAC_ROCKCHIP\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-176-\t  This selects the Rockchip RK3288 SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:177:\t  the stmmac device driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-178-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=179=config DWMAC_RZN1\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-187-\t  This selects the Renesas RZ/N1 SoC glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:188:\t  the stmmac device driver. This support can make use of a custom MII\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-189-\t  converter PCS device.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=191=config DWMAC_S32\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-197-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:198:\t  This selects NXP SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-199-\t  device driver. This driver is used for the S32CC series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=203=config DWMAC_SOCFPGA\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-214-\t  This selects the Altera SOCFPGA SoC glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:215:\t  for the stmmac device driver. This driver is used for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-216-\t  arria5 and cyclone5 FPGA SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=218=config DWMAC_SOPHGO\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-225-\t  This selects the Sophgo SoC specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:226:\t  for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-227-\t  ethernet controllers on various Sophgo SoCs.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=229=config DWMAC_SPACEMIT\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-237-\t  This selects the Spacemit platform specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:238:\t  for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-239-\t  Spacemit K3 ethernet controllers.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=241=config DWMAC_STARFIVE\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-249-\t  This selects the StarFive platform specific glue layer support\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:250:\t  for the stmmac device driver. This driver is used for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-251-\t  StarFive JH7100 and JH7110 ethernet controllers.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=253=config DWMAC_STI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-260-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:261:\t  This selects STi SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-262-\t  device driver. This driver is used on for the STi series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=265=config DWMAC_STM32\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-272-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:273:\t  This selects STM32 SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-274-\t  device driver. This driver is used on for the STM32 series\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=277=config DWMAC_SUNXI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-284-\t  This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:285:\t  stmmac device driver. This driver is used for A20/A31\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-286-\t  GMAC ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=288=config DWMAC_SUN8I\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-296-\t  This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:297:\t  stmmac device driver. This driver is used for H3/A83T/A64\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-298-\t  EMAC ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=300=config DWMAC_SUN55I\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-308-\t  This selects Allwinner SoC glue layer support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:309:\t  stmmac device driver. This driver is used for A523/T527\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-310-\t  GMAC200 ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=312=config DWMAC_THEAD\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-318-\t  This selects the T-HEAD platform specific glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:319:\t  the stmmac device driver. This driver is used for T-HEAD TH1520\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-320-\t  ethernet controller.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=322=config DWMAC_IMX8\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-329-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:330:\t  This selects NXP SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-331-\t  device driver. This driver is used for i.MX8 series like\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=334=config DWMAC_INTEL_PLAT\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-340-\t  This selects the Intel platform specific glue layer support for\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:341:\t  the stmmac device driver. This driver is used for the Intel Keem Bay\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-342-\t  SoC.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=344=config DWMAC_LOONGSON1\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-350-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:351:\t  This selects Loongson1 SoC glue layer support for the stmmac\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-352-\t  device driver. This driver is used for Loongson1-based boards\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=355=config DWMAC_TEGRA\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-360-\t  found on the NVIDIA Tegra SoC devices. This driver provides the glue\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:361:\t  layer on top of the stmmac driver required for these NVIDIA Tegra SoC\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-362-\t  devices.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=373=config STMMAC_LIBPCI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-375-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:376:\t  This option enables the PCI bus helpers for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-377-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=378=config DWMAC_INTEL\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-385-\t  This selects the Intel platform specific bus support for the\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:386:\t  stmmac driver. This driver is used for Intel Quark/EHL/TGL.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-387-\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=388=config DWMAC_LOONGSON\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-394-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:395:\t  This selects the LOONGSON PCI bus support for the stmmac driver,\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-396-\t  Support for ethernet controller on Loongson-2K1000 SoC and LS7A1000 bridge.\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig=407=config STMMAC_PCI\n--\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-412-\thelp\ndrivers/net/ethernet/stmicro/stmmac/Kconfig:413:\t  This selects the platform specific bus support for the stmmac driver.\ndrivers/net/ethernet/stmicro/stmmac/Kconfig-414-\t  This driver was tested on XLINX XC2V3000 FF1152AMT0221\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile-1-# SPDX-License-Identifier: GPL-2.0\ndrivers/net/ethernet/stmicro/stmmac/Makefile:2:obj-$(CONFIG_STMMAC_ETH) += stmmac.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:3:stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-4-\t      chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-5-\t      dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:6:\t      mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o dwmac4_descs.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-7-\t      dwmac4_dma.o dwmac4_lib.o dwmac4_core.o dwmac5.o hwif.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:8:\t      stmmac_tc.o dwxgmac2_core.o dwxgmac2_dma.o dwxgmac2_descs.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:9:\t      stmmac_xdp.o stmmac_est.o stmmac_fpe.o stmmac_vlan.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:10:\t      stmmac_pcs.o $(stmmac-y)\ndrivers/net/ethernet/stmicro/stmmac/Makefile-11-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:12:stmmac-$(CONFIG_STMMAC_SELFTESTS) += stmmac_selftests.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-13-\ndrivers/net/ethernet/stmicro/stmmac/Makefile-14-# Ordering matters. Generic driver must be last.\ndrivers/net/ethernet/stmicro/stmmac/Makefile:15:obj-$(CONFIG_STMMAC_PLATFORM)\t+= stmmac-platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-16-obj-$(CONFIG_DWMAC_ANARION)\t+= dwmac-anarion.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=45=obj-$(CONFIG_DWMAC_VISCONTI)\t+= dwmac-visconti.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:46:stmmac-platform-objs:= stmmac_platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-47-dwmac-altr-socfpga-objs := dwmac-socfpga.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-48-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:49:obj-$(CONFIG_STMMAC_LIBPCI)\t+= stmmac_libpci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:50:obj-$(CONFIG_STMMAC_PCI)\t+= stmmac-pci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-51-obj-$(CONFIG_DWMAC_INTEL)\t+= dwmac-intel.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=53=obj-$(CONFIG_DWMAC_MOTORCOMM)\t+= dwmac-motorcomm.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:54:stmmac-pci-objs:= stmmac_pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-14-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:15:#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-16-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:17:static int jumbo_frm(struct stmmac_tx_queue *tx_q, struct sk_buff *skb,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-18-\t\t     int csum)\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-20-\tunsigned int nopaged_len = skb_headlen(skb);\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:21:\tstruct stmmac_priv *priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-22-\tunsigned int entry = tx_q-\u003ecur_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-45-\t/* do not close the descriptor and do not set own bit */\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:46:\tstmmac_prepare_tx_desc(priv, desc, 1, buf_len, csum, STMMAC_CHAIN_MODE,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-47-\t\t\t0, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-62-\t\t\ttx_q-\u003etx_skbuff_dma[entry].len = bmax;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:63:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, bmax, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-64-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-76-\t\t\t/* last descriptor can be set now */\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:77:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, len, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-78-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, true, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c=99=static void init_dma_chain(void *des, dma_addr_t phy_addr,\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-128-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:129:static void refill_desc3(struct stmmac_rx_queue *rx_q, struct dma_desc *p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-130-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:131:\tstruct stmmac_priv *priv = rx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-132-\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-143-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:144:static void clean_desc3(struct stmmac_tx_queue *tx_q, struct dma_desc *p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-145-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:146:\tstruct stmmac_priv *priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-147-\tunsigned int entry = tx_q-\u003edirty_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-160-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:161:const struct stmmac_mode_ops chain_mode_ops = {\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-162-\t.init = init_dma_chain,\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-15-#include \u003clinux/netdevice.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/common.h:16:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/common.h-17-#include \u003clinux/phy.h\u003e\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=49=static inline bool dwmac_is_xmac(enum dwmac_core_type core_type)\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-70-\ndrivers/net/ethernet/stmicro/stmmac/common.h:71:struct stmmac_q_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-72-\tu64_stats_t tx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-77-\ndrivers/net/ethernet/stmicro/stmmac/common.h:78:struct stmmac_napi_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-79-\tu64_stats_t tx_packets;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-85-\ndrivers/net/ethernet/stmicro/stmmac/common.h:86:struct stmmac_txq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-87-\t/* Updates protected by tx queue lock. */\ndrivers/net/ethernet/stmicro/stmmac/common.h-88-\tstruct u64_stats_sync q_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:89:\tstruct stmmac_q_tx_stats q;\ndrivers/net/ethernet/stmicro/stmmac/common.h-90-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-92-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:93:\tstruct stmmac_napi_tx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-94-} ____cacheline_aligned_in_smp;\ndrivers/net/ethernet/stmicro/stmmac/common.h-95-\ndrivers/net/ethernet/stmicro/stmmac/common.h:96:struct stmmac_napi_rx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-97-\tu64_stats_t rx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-102-\ndrivers/net/ethernet/stmicro/stmmac/common.h:103:struct stmmac_rxq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-104-\t/* Updates protected by NAPI poll logic. */\ndrivers/net/ethernet/stmicro/stmmac/common.h-105-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:106:\tstruct stmmac_napi_rx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-107-} ____cacheline_aligned_in_smp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-109-/* Updates on each CPU protected by not allowing nested irqs. */\ndrivers/net/ethernet/stmicro/stmmac/common.h:110:struct stmmac_pcpu_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-111-\tstruct u64_stats_sync syncp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-116-/* Extra statistic and debug information exposed by ethtool */\ndrivers/net/ethernet/stmicro/stmmac/common.h:117:struct stmmac_extra_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-118-\t/* Transmit errors */\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-237-\t/* per queue statistics */\ndrivers/net/ethernet/stmicro/stmmac/common.h:238:\tstruct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:239:\tstruct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:240:\tstruct stmmac_pcpu_stats __percpu *pcpu_stats;\ndrivers/net/ethernet/stmicro/stmmac/common.h-241-\tunsigned long rx_dropped;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-247-/* Safety Feature statistics exposed by ethtool */\ndrivers/net/ethernet/stmicro/stmmac/common.h:248:struct stmmac_safety_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-249-\tunsigned long mac_errors[32];\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-256-#define STMMAC_SAFETY_FEAT_SIZE\t\\\ndrivers/net/ethernet/stmicro/stmmac/common.h:257:\t(sizeof(struct stmmac_safety_stats) / sizeof(unsigned long))\ndrivers/net/ethernet/stmicro/stmmac/common.h-258-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=416=struct dma_features {\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-564-\ndrivers/net/ethernet/stmicro/stmmac/common.h:565:void stmmac_axi_blen_to_mask(u32 *regval, const u32 *blen, size_t len);\ndrivers/net/ethernet/stmicro/stmmac/common.h-566-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=613=struct mac_device_info {\ndrivers/net/ethernet/stmicro/stmmac/common.h:614:\tconst struct stmmac_ops *mac;\ndrivers/net/ethernet/stmicro/stmmac/common.h:615:\tconst struct stmmac_desc_ops *desc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:616:\tconst struct stmmac_dma_ops *dma;\ndrivers/net/ethernet/stmicro/stmmac/common.h:617:\tconst struct stmmac_mode_ops *mode;\ndrivers/net/ethernet/stmicro/stmmac/common.h:618:\tconst struct stmmac_hwtimestamp *ptp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:619:\tconst struct stmmac_tc_ops *tc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:620:\tconst struct stmmac_mmc_ops *mmc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:621:\tconst struct stmmac_est_ops *est;\ndrivers/net/ethernet/stmicro/stmmac/common.h:622:\tconst struct stmmac_vlan_ops *vlan;\ndrivers/net/ethernet/stmicro/stmmac/common.h-623-\tstruct dw_xpcs *xpcs;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-644-\ndrivers/net/ethernet/stmicro/stmmac/common.h:645:struct stmmac_rx_routing {\ndrivers/net/ethernet/stmicro/stmmac/common.h-646-\tu32 reg_mask;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-649-\ndrivers/net/ethernet/stmicro/stmmac/common.h:650:int dwmac100_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:651:int dwmac1000_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:652:int dwmac4_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:653:int dwxgmac2_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:654:int dwxlgmac2_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h-655-\ndrivers/net/ethernet/stmicro/stmmac/common.h:656:void stmmac_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-657-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:658:void stmmac_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-659-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:660:void stmmac_set_mac(void __iomem *ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-661-\ndrivers/net/ethernet/stmicro/stmmac/common.h:662:void stmmac_dwmac4_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-663-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:664:void stmmac_dwmac4_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-665-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:666:void stmmac_dwmac4_set_mac(void __iomem *ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-667-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-11-#include \u003clinux/of_net.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:12:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-13-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:14:#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:15:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-16-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=63=anarion_config_dt(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:64:\t\t  struct plat_stmmacenet_data *plat_dat)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-65-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=93=static int anarion_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-96-\tstruct anarion_gmac *gmac;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:97:\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:98:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-99-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:100:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-101-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-103-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:104:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-105-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-115-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:116:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-117-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=125=static struct platform_driver anarion_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-128-\t\t.name           = \"anarion-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:129:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-130-\t\t.of_match_table = anarion_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-21-#include \u003clinux/reset.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:22:#include \u003clinux/stmmac.h\u003e\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-23-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:24:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-25-#include \"dwmac4.h\"\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=36=static int dwc_eth_dwmac_config_dt(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:37:\t\t\t\t   struct plat_stmmacenet_data *plat_dat)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-38-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-43-\t\tplat_dat-\u003eaxi = devm_kzalloc(\u0026pdev-\u003edev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:44:\t\t\t\t\t     sizeof(struct stmmac_axi),\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-45-\t\t\t\t\t     GFP_KERNEL);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=96=static int dwc_qos_probe(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:97:\t\t\t struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:98:\t\t\t struct stmmac_resources *stmmac_res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-99-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:100:\tplat_dat-\u003epclk = stmmac_pltfr_find_clk(plat_dat, \"phy_ref_clk\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-101-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=115=static void tegra_eqos_fix_speed(void *bsp_priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-119-\tbool needs_calibration = false;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:120:\tstruct stmmac_priv *priv;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-121-\tu32 value;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-141-\t\t/* Calibration should be done with the MDIO bus idle */\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:142:\t\tstmmac_mdio_lock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-143-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-177-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:178:\t\tstmmac_mdio_unlock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-179-\t} else {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=186=static int tegra_eqos_probe(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:187:\t\t\t    struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:188:\t\t\t    struct stmmac_resources *res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-189-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-203-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:204:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-205-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-237-\tplat_dat-\u003efix_mac_speed = tegra_eqos_fix_speed;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:238:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-239-\tplat_dat-\u003ebsp_priv = eqos;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=252=static void tegra_eqos_remove(struct platform_device *pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-253-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:254:\tstruct tegra_eqos *eqos = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-255-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=260=struct dwc_eth_dwmac_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-261-\tint (*probe)(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:262:\t\t     struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:263:\t\t     struct stmmac_resources *res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-264-\tvoid (*remove)(struct platform_device *pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:265:\tconst char *stmmac_clk_name;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-266-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=268=static const struct dwc_eth_dwmac_data dwc_qos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-269-\t.probe = dwc_qos_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:270:\t.stmmac_clk_name = \"apb_pclk\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-271-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=273=static const struct dwc_eth_dwmac_data tegra_eqos_data = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-275-\t.remove = tegra_eqos_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:276:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-277-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=279=static const struct dwc_eth_dwmac_data fsd_eqos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:280:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-281-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-285-\tconst struct dwc_eth_dwmac_data *data;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:286:\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:287:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-288-\tint ret;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-291-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:292:\tmemset(\u0026stmmac_res, 0, sizeof(struct stmmac_resources));\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-293-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-294-\t/**\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:295:\t * Since stmmac_platform supports name IRQ only, basic platform\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-296-\t * resource initialization is done in the glue logic.\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-297-\t */\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:298:\tstmmac_res.irq = platform_get_irq(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:299:\tif (stmmac_res.irq \u003c 0)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:300:\t\treturn stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:301:\tstmmac_res.wol_irq = stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-302-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:303:\tstmmac_res.addr = devm_platform_ioremap_resource(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:304:\tif (IS_ERR(stmmac_res.addr))\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:305:\t\treturn PTR_ERR(stmmac_res.addr);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-306-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:307:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-308-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-315-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:316:\tplat_dat-\u003estmmac_clk = stmmac_pltfr_find_clk(plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:317:\t\t\t\t\t\t     data-\u003estmmac_clk_name);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-318-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-319-\tif (data-\u003eprobe)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:320:\t\tret = data-\u003eprobe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-321-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=343=static void dwc_eth_dwmac_remove(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-346-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:347:\tstmmac_dvr_remove(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-348-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=361=static struct platform_driver dwc_eth_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-365-\t\t.name           = \"dwc-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:366:\t\t.pm             = \u0026stmmac_pltfr_pm_ops,\n\n"
}

							input: 18953
							output: 39
							thoughts: 73

**Investigating QEMU's STMMAC/DWMAC Emulation**

Okay, hold on a second. I need to clarify something quickly regarding QEMU's device emulation. Specifically, I'm trying to determine if QEMU offers emulation support for any STMMAC or DWMAC devices directly. Is there a complete or partial implementation? Alternatively, are there any PCI devices it supports that can be configured to act as STMMAC controllers? These details are key for the next stage of my work.

To clarify my understanding, I need to check the PCI device implementations. Let's see what's going on with the `STMMAC_PCI` and `DWMAC_INTEL` configurations. Time to dig into the code itself: I'll review `stmmac_pci.c` and `dwmac-intel.c`. That should clear this up in no time.

{
  "Expression": "MODULE_DEVICE_TABLE",
  "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/"
}

{
  "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=119=static const struct of_device_id anarion_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-122-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:123:MODULE_DEVICE_TABLE(of, anarion_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-124-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=353=static const struct of_device_id dwc_eth_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-358-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:359:MODULE_DEVICE_TABLE(of, dwc_eth_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-360-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=350=static const struct of_device_id eic7700_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-359-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:360:MODULE_DEVICE_TABLE(of, eic7700_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-361-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=52=static const struct of_device_id dwmac_generic_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-66-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:67:MODULE_DEVICE_TABLE(of, dwmac_generic_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-68-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=384=static const struct of_device_id imx_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-389-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:390:MODULE_DEVICE_TABLE(of, imx_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-391-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=262=static const struct of_device_id ingenic_mac_of_matches[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-269-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:270:MODULE_DEVICE_TABLE(of, ingenic_mac_of_matches);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-271-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=36=static const struct of_device_id intel_eth_plat_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-39-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:40:MODULE_DEVICE_TABLE(of, intel_eth_plat_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-41-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1395=static const struct pci_device_id intel_eth_pci_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1414-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1415:MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1416-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c=491=static const struct of_device_id ipq806x_gmac_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-494-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c:495:MODULE_DEVICE_TABLE(of, ipq806x_gmac_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-496-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c=596=static const struct pci_device_id loongson_dwmac_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-601-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c:602:MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-603-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c=216=static const struct of_device_id ls1x_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c-226-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c:227:MODULE_DEVICE_TABLE(of, ls1x_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c-228-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c=71=static const struct of_device_id lpc18xx_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-74-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c:75:MODULE_DEVICE_TABLE(of, lpc18xx_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-76-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c=662=static const struct of_device_id mediatek_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-669-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:670:MODULE_DEVICE_TABLE(of, mediatek_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-671-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c=76=static const struct of_device_id meson6_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-79-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:80:MODULE_DEVICE_TABLE(of, meson6_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-81-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c=482=static const struct of_device_id meson8b_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-504-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c:505:MODULE_DEVICE_TABLE(of, meson8b_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-506-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c=367=static const struct pci_device_id dwmac_motorcomm_pci_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-370-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c:371:MODULE_DEVICE_TABLE(pci, dwmac_motorcomm_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-372-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c=118=static const struct of_device_id nvt_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c-121-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c:122:MODULE_DEVICE_TABLE(of, nvt_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c-123-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c=800=static const struct of_device_id qcom_ethqos_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c-806-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c:807:MODULE_DEVICE_TABLE(of, qcom_ethqos_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c-808-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c=216=static const struct of_device_id renesas_gbeth_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c-221-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c:222:MODULE_DEVICE_TABLE(of, renesas_gbeth_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c-223-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c=1616=static const struct of_device_id rk_gmac_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c-1634-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c:1635:MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rk.c-1636-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c=75=static const struct of_device_id rzn1_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-78-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c:79:MODULE_DEVICE_TABLE(of, rzn1_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-80-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c=216=static const struct of_device_id s32_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c-219-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c:220:MODULE_DEVICE_TABLE(of, s32_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-s32.c-221-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c=673=static const struct of_device_id socfpga_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c-678-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:679:MODULE_DEVICE_TABLE(of, socfpga_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c-680-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c=72=static const struct of_device_id sophgo_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-76-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:77:MODULE_DEVICE_TABLE(of, sophgo_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-78-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c=210=static const struct of_device_id spacemit_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-213-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c:214:MODULE_DEVICE_TABLE(of, spacemit_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-215-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c=160=static const struct of_device_id starfive_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-164-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c:165:MODULE_DEVICE_TABLE(of, starfive_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-166-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c=296=static const struct of_device_id sti_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c-299-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c:300:MODULE_DEVICE_TABLE(of, sti_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sti.c-301-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c=662=static const struct of_device_id stm32_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-668-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c:669:MODULE_DEVICE_TABLE(of, stm32_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-670-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c=141=static const struct of_device_id sun55i_gmac200_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c-144-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c:145:MODULE_DEVICE_TABLE(of, sun55i_gmac200_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c-146-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c=1268=static const struct of_device_id sun8i_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1282-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1283:MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1284-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c=150=static const struct of_device_id sun7i_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c-153-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c:154:MODULE_DEVICE_TABLE(of, sun7i_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c-155-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c=397=static const struct of_device_id tegra_mgbe_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-400-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c:401:MODULE_DEVICE_TABLE(of, tegra_mgbe_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-402-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c=267=static const struct of_device_id thead_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c-270-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:271:MODULE_DEVICE_TABLE(of, thead_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-thead.c-272-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c=255=static const struct of_device_id visconti_eth_dwmac_match[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-258-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c:259:MODULE_DEVICE_TABLE(of, visconti_eth_dwmac_match);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-260-\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c=203=static const struct pci_device_id stmmac_id_table[] = {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-209-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:210:MODULE_DEVICE_TABLE(pci, stmmac_id_table);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-211-\n"
}

							input: 24622
							output: 50
							thoughts: 26

Okay, let's dive into these files.

**Deep Dive into Driver Source**

Alright, time to crack open `stmmac_pci.c` and `dwmac-intel.c`. I need to get a clear picture of their implementations. I'm going to quickly skim the high-level structures, focusing on how they interact with the PCI bus and the specific details of the DMA setup within each. I'm particularly interested in the interrupt handling strategies used, especially any unique optimizations or workarounds for specific Intel chipsets that might be present in the `dwmac-intel.c` driver. From there, I'll compare and contrast the architectural choices made in each driver and see how each implements the shared memory architecture. I'll be looking for any indications of DMA buffer management, descriptor ring organization, and power management techniques, keeping in mind they might affect performance.

{
  "File": "drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c",
  "FirstLine": 190,
  "LineCount": 40
}

{
  "Contents": " 190:\t * Description: this function calls the main to free the net resources.\n 191:\t */\n 192:\tstatic void stmmac_pci_remove(struct pci_dev *pdev)\n 193:\t{\n 194:\t\tstmmac_dvr_remove(\u0026pdev-\u003edev);\n 195:\t}\n 196:\t\n 197:\t/* synthetic ID, no official vendor */\n 198:\t#define PCI_VENDOR_ID_STMMAC\t\t0x0700\n 199:\t\n 200:\t#define PCI_DEVICE_ID_STMMAC_STMMAC\t\t0x1108\n 201:\t#define PCI_DEVICE_ID_SYNOPSYS_GMAC5_ID\t\t0x7102\n 202:\t\n 203:\tstatic const struct pci_device_id stmmac_id_table[] = {\n 204:\t\t{ PCI_DEVICE_DATA(STMMAC, STMMAC, \u0026stmmac_pci_info) },\n 205:\t\t{ PCI_DEVICE_DATA(STMICRO, MAC, \u0026stmmac_pci_info) },\n 206:\t\t{ PCI_DEVICE_DATA(SYNOPSYS, GMAC5_ID, \u0026snps_gmac5_pci_info) },\n 207:\t\t{}\n 208:\t};\n 209:\t\n 210:\tMODULE_DEVICE_TABLE(pci, stmmac_id_table);\n 211:\t\n 212:\tstatic struct pci_driver stmmac_pci_driver = {\n 213:\t\t.name = STMMAC_RESOURCE_NAME,\n 214:\t\t.id_table = stmmac_id_table,\n 215:\t\t.probe = stmmac_pci_probe,\n 216:\t\t.remove = stmmac_pci_remove,\n 217:\t\t.driver         = {\n 218:\t\t\t.pm     = \u0026stmmac_simple_pm_ops,\n 219:\t\t},\n 220:\t};\n 221:\t\n 222:\tmodule_pci_driver(stmmac_pci_driver);\n 223:\t\n 224:\tMODULE_DESCRIPTION(\"STMMAC 10/100/1000 Ethernet PCI driver\");\n 225:\tMODULE_AUTHOR(\"Rayagond Kokatanur \u003crayagond.kokatanur@vayavyalabs.com\u003e\");\n 226:\tMODULE_AUTHOR(\"Giuseppe Cavallaro \u003cpeppe.cavallaro@st.com\u003e\");\n 227:\tMODULE_LICENSE(\"GPL\");\n"
}

							input: 25585
							output: 26
							thoughts: 577

**My Reasoning on STMMAC Fuzzing Feasibility**

Okay, so I'm thinking about fuzzing `stmmac` with syzkaller. First, the crucial question: can `stmmac` be instantiated in a way that syzkaller can reach it? This isn't a simple platform driver, it's for specific STMicro and Synopsys Ethernet MACs, so I can't just assume it works with any USB or virtual device.

Alright, *can* syzkaller actually *fuzz* `stmmac`? The immediate thought is, does QEMU even *emulate* `stmmac` or the Synopsys DWMAC it's based on? I need to figure out if there's a model in QEMU. Thinking through that, some ARM machines might use `dwmac`, like the Allwinner H3 (`orangepi-pc`), which has `allwinner-h3-emac` or similar. But my target architecture here is amd64. That is key information.

Right, the target is amd64, I need to focus on what QEMU supports *for amd64*. Checking the QEMU NICs for amd64, I get a list: e1000, e1000e, igb, rtl8139, pcnet, ne2k_pci, virtio-net, vmxnet3, rocker... but *no* `stmmac` or `dwmac` for x86/amd64. That's a serious roadblock.

I need to circle back to the core question: Can I create a mock or dummy platform device or use USB to instantiate `stmmac` with syzkaller? The answer is no, because `stmmac` is not a USB device. What about PCI? Can syzkaller instantiate *any* PCI devices? Probably not, unless there's physical PCI or QEMU emulates the PCI device.

Now, let's step back and consider the provided context, section 2. I'm looking for *structurally unreachable hardware* – does `stmmac` fall into that category? It could be, depending on how it's implemented and how syzkaller is set up.

So, where else could `stmmac` be reached? I need to comprehensively search the kernel tree and syzkaller's descriptions to check if syzkaller has any dedicated support, or if there's any virtual or test driver that could potentially bridge the gap. That is the next step.

{
  "Expression": "stmmac_",
  "PathPrefix": "drivers/"
}

{
  "Output": "\nFull output is too long, showing 500 out of 10814 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/stmicro/stmmac/Makefile=2=obj-$(CONFIG_STMMAC_ETH) += stmmac.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:3:stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-4-\t      chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-5-\t      dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:6:\t      mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o dwmac4_descs.o\t\\\ndrivers/net/ethernet/stmicro/stmmac/Makefile-7-\t      dwmac4_dma.o dwmac4_lib.o dwmac4_core.o dwmac5.o hwif.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:8:\t      stmmac_tc.o dwxgmac2_core.o dwxgmac2_dma.o dwxgmac2_descs.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:9:\t      stmmac_xdp.o stmmac_est.o stmmac_fpe.o stmmac_vlan.o \\\ndrivers/net/ethernet/stmicro/stmmac/Makefile:10:\t      stmmac_pcs.o $(stmmac-y)\ndrivers/net/ethernet/stmicro/stmmac/Makefile-11-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:12:stmmac-$(CONFIG_STMMAC_SELFTESTS) += stmmac_selftests.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-13-\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=45=obj-$(CONFIG_DWMAC_VISCONTI)\t+= dwmac-visconti.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:46:stmmac-platform-objs:= stmmac_platform.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-47-dwmac-altr-socfpga-objs := dwmac-socfpga.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-48-\ndrivers/net/ethernet/stmicro/stmmac/Makefile:49:obj-$(CONFIG_STMMAC_LIBPCI)\t+= stmmac_libpci.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile-50-obj-$(CONFIG_STMMAC_PCI)\t+= stmmac-pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/Makefile=53=obj-$(CONFIG_DWMAC_MOTORCOMM)\t+= dwmac-motorcomm.o\ndrivers/net/ethernet/stmicro/stmmac/Makefile:54:stmmac-pci-objs:= stmmac_pci.o\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-16-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:17:static int jumbo_frm(struct stmmac_tx_queue *tx_q, struct sk_buff *skb,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-18-\t\t     int csum)\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-20-\tunsigned int nopaged_len = skb_headlen(skb);\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:21:\tstruct stmmac_priv *priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-22-\tunsigned int entry = tx_q-\u003ecur_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-45-\t/* do not close the descriptor and do not set own bit */\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:46:\tstmmac_prepare_tx_desc(priv, desc, 1, buf_len, csum, STMMAC_CHAIN_MODE,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-47-\t\t\t0, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-62-\t\t\ttx_q-\u003etx_skbuff_dma[entry].len = bmax;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:63:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, bmax, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-64-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, false, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-76-\t\t\t/* last descriptor can be set now */\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:77:\t\t\tstmmac_prepare_tx_desc(priv, desc, 0, len, csum,\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-78-\t\t\t\t\tSTMMAC_CHAIN_MODE, 1, true, skb-\u003elen);\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c=99=static void init_dma_chain(void *des, dma_addr_t phy_addr,\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-128-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:129:static void refill_desc3(struct stmmac_rx_queue *rx_q, struct dma_desc *p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-130-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:131:\tstruct stmmac_priv *priv = rx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-132-\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-143-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:144:static void clean_desc3(struct stmmac_tx_queue *tx_q, struct dma_desc *p)\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-145-{\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:146:\tstruct stmmac_priv *priv = tx_q-\u003epriv_data;\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-147-\tunsigned int entry = tx_q-\u003edirty_tx;\n--\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-160-\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c:161:const struct stmmac_mode_ops chain_mode_ops = {\ndrivers/net/ethernet/stmicro/stmmac/chain_mode.c-162-\t.init = init_dma_chain,\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=49=static inline bool dwmac_is_xmac(enum dwmac_core_type core_type)\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-70-\ndrivers/net/ethernet/stmicro/stmmac/common.h:71:struct stmmac_q_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-72-\tu64_stats_t tx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-77-\ndrivers/net/ethernet/stmicro/stmmac/common.h:78:struct stmmac_napi_tx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-79-\tu64_stats_t tx_packets;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-85-\ndrivers/net/ethernet/stmicro/stmmac/common.h:86:struct stmmac_txq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-87-\t/* Updates protected by tx queue lock. */\ndrivers/net/ethernet/stmicro/stmmac/common.h-88-\tstruct u64_stats_sync q_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:89:\tstruct stmmac_q_tx_stats q;\ndrivers/net/ethernet/stmicro/stmmac/common.h-90-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-92-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:93:\tstruct stmmac_napi_tx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-94-} ____cacheline_aligned_in_smp;\ndrivers/net/ethernet/stmicro/stmmac/common.h-95-\ndrivers/net/ethernet/stmicro/stmmac/common.h:96:struct stmmac_napi_rx_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-97-\tu64_stats_t rx_bytes;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-102-\ndrivers/net/ethernet/stmicro/stmmac/common.h:103:struct stmmac_rxq_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-104-\t/* Updates protected by NAPI poll logic. */\ndrivers/net/ethernet/stmicro/stmmac/common.h-105-\tstruct u64_stats_sync napi_syncp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:106:\tstruct stmmac_napi_rx_stats napi;\ndrivers/net/ethernet/stmicro/stmmac/common.h-107-} ____cacheline_aligned_in_smp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-109-/* Updates on each CPU protected by not allowing nested irqs. */\ndrivers/net/ethernet/stmicro/stmmac/common.h:110:struct stmmac_pcpu_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-111-\tstruct u64_stats_sync syncp;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-116-/* Extra statistic and debug information exposed by ethtool */\ndrivers/net/ethernet/stmicro/stmmac/common.h:117:struct stmmac_extra_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-118-\t/* Transmit errors */\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-237-\t/* per queue statistics */\ndrivers/net/ethernet/stmicro/stmmac/common.h:238:\tstruct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:239:\tstruct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];\ndrivers/net/ethernet/stmicro/stmmac/common.h:240:\tstruct stmmac_pcpu_stats __percpu *pcpu_stats;\ndrivers/net/ethernet/stmicro/stmmac/common.h-241-\tunsigned long rx_dropped;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-247-/* Safety Feature statistics exposed by ethtool */\ndrivers/net/ethernet/stmicro/stmmac/common.h:248:struct stmmac_safety_stats {\ndrivers/net/ethernet/stmicro/stmmac/common.h-249-\tunsigned long mac_errors[32];\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-256-#define STMMAC_SAFETY_FEAT_SIZE\t\\\ndrivers/net/ethernet/stmicro/stmmac/common.h:257:\t(sizeof(struct stmmac_safety_stats) / sizeof(unsigned long))\ndrivers/net/ethernet/stmicro/stmmac/common.h-258-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=416=struct dma_features {\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-564-\ndrivers/net/ethernet/stmicro/stmmac/common.h:565:void stmmac_axi_blen_to_mask(u32 *regval, const u32 *blen, size_t len);\ndrivers/net/ethernet/stmicro/stmmac/common.h-566-\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h=613=struct mac_device_info {\ndrivers/net/ethernet/stmicro/stmmac/common.h:614:\tconst struct stmmac_ops *mac;\ndrivers/net/ethernet/stmicro/stmmac/common.h:615:\tconst struct stmmac_desc_ops *desc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:616:\tconst struct stmmac_dma_ops *dma;\ndrivers/net/ethernet/stmicro/stmmac/common.h:617:\tconst struct stmmac_mode_ops *mode;\ndrivers/net/ethernet/stmicro/stmmac/common.h:618:\tconst struct stmmac_hwtimestamp *ptp;\ndrivers/net/ethernet/stmicro/stmmac/common.h:619:\tconst struct stmmac_tc_ops *tc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:620:\tconst struct stmmac_mmc_ops *mmc;\ndrivers/net/ethernet/stmicro/stmmac/common.h:621:\tconst struct stmmac_est_ops *est;\ndrivers/net/ethernet/stmicro/stmmac/common.h:622:\tconst struct stmmac_vlan_ops *vlan;\ndrivers/net/ethernet/stmicro/stmmac/common.h-623-\tstruct dw_xpcs *xpcs;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-644-\ndrivers/net/ethernet/stmicro/stmmac/common.h:645:struct stmmac_rx_routing {\ndrivers/net/ethernet/stmicro/stmmac/common.h-646-\tu32 reg_mask;\n--\ndrivers/net/ethernet/stmicro/stmmac/common.h-649-\ndrivers/net/ethernet/stmicro/stmmac/common.h:650:int dwmac100_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:651:int dwmac1000_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:652:int dwmac4_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:653:int dwxgmac2_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h:654:int dwxlgmac2_setup(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/common.h-655-\ndrivers/net/ethernet/stmicro/stmmac/common.h:656:void stmmac_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-657-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:658:void stmmac_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-659-\t\t\t unsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:660:void stmmac_set_mac(void __iomem *ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-661-\ndrivers/net/ethernet/stmicro/stmmac/common.h:662:void stmmac_dwmac4_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],\ndrivers/net/ethernet/stmicro/stmmac/common.h-663-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:664:void stmmac_dwmac4_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,\ndrivers/net/ethernet/stmicro/stmmac/common.h-665-\t\t\t\tunsigned int high, unsigned int low);\ndrivers/net/ethernet/stmicro/stmmac/common.h:666:void stmmac_dwmac4_set_mac(void __iomem *ioaddr, bool enable);\ndrivers/net/ethernet/stmicro/stmmac/common.h-667-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-14-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:15:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-16-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=93=static int anarion_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-97-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:98:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-99-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:100:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-101-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-103-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:104:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-105-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-115-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:116:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-117-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c=125=static struct platform_driver anarion_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-128-\t\t.name           = \"anarion-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c:129:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c-130-\t\t.of_match_table = anarion_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-23-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:24:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-25-#include \"dwmac4.h\"\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=36=static int dwc_eth_dwmac_config_dt(struct platform_device *pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-43-\t\tplat_dat-\u003eaxi = devm_kzalloc(\u0026pdev-\u003edev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:44:\t\t\t\t\t     sizeof(struct stmmac_axi),\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-45-\t\t\t\t\t     GFP_KERNEL);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=96=static int dwc_qos_probe(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-97-\t\t\t struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:98:\t\t\t struct stmmac_resources *stmmac_res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-99-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:100:\tplat_dat-\u003epclk = stmmac_pltfr_find_clk(plat_dat, \"phy_ref_clk\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-101-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=115=static void tegra_eqos_fix_speed(void *bsp_priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-119-\tbool needs_calibration = false;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:120:\tstruct stmmac_priv *priv;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-121-\tu32 value;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-141-\t\t/* Calibration should be done with the MDIO bus idle */\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:142:\t\tstmmac_mdio_lock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-143-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-177-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:178:\t\tstmmac_mdio_unlock(priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-179-\t} else {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=186=static int tegra_eqos_probe(struct platform_device *pdev,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-187-\t\t\t    struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:188:\t\t\t    struct stmmac_resources *res)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-189-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-203-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:204:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-205-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-237-\tplat_dat-\u003efix_mac_speed = tegra_eqos_fix_speed;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:238:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-239-\tplat_dat-\u003ebsp_priv = eqos;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=252=static void tegra_eqos_remove(struct platform_device *pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-253-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:254:\tstruct tegra_eqos *eqos = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-255-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=260=struct dwc_eth_dwmac_data {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-262-\t\t     struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:263:\t\t     struct stmmac_resources *res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-264-\tvoid (*remove)(struct platform_device *pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:265:\tconst char *stmmac_clk_name;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-266-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=268=static const struct dwc_eth_dwmac_data dwc_qos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-269-\t.probe = dwc_qos_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:270:\t.stmmac_clk_name = \"apb_pclk\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-271-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=273=static const struct dwc_eth_dwmac_data tegra_eqos_data = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-275-\t.remove = tegra_eqos_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:276:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-277-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=279=static const struct dwc_eth_dwmac_data fsd_eqos_data = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:280:\t.stmmac_clk_name = \"slave_bus\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-281-};\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-286-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:287:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-288-\tint ret;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-291-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:292:\tmemset(\u0026stmmac_res, 0, sizeof(struct stmmac_resources));\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-293-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-294-\t/**\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:295:\t * Since stmmac_platform supports name IRQ only, basic platform\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-296-\t * resource initialization is done in the glue logic.\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-297-\t */\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:298:\tstmmac_res.irq = platform_get_irq(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:299:\tif (stmmac_res.irq \u003c 0)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:300:\t\treturn stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:301:\tstmmac_res.wol_irq = stmmac_res.irq;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-302-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:303:\tstmmac_res.addr = devm_platform_ioremap_resource(pdev, 0);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:304:\tif (IS_ERR(stmmac_res.addr))\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:305:\t\treturn PTR_ERR(stmmac_res.addr);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-306-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:307:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-308-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-315-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:316:\tplat_dat-\u003estmmac_clk = stmmac_pltfr_find_clk(plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:317:\t\t\t\t\t\t     data-\u003estmmac_clk_name);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-318-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-319-\tif (data-\u003eprobe)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:320:\t\tret = data-\u003eprobe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-321-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=343=static void dwc_eth_dwmac_remove(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-346-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:347:\tstmmac_dvr_remove(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-348-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=361=static struct platform_driver dwc_eth_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-365-\t\t.name           = \"dwc-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:366:\t\t.pm             = \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-367-\t\t.of_match_table = dwc_eth_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-19-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:20:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-21-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=167=static int eic7700_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-170-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:171:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-172-\tstruct eic7700_qos_priv *dwc_priv;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-175-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:176:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-177-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-180-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:181:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-182-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-323-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:324:\tplat_dat-\u003eclk_tx_i = stmmac_pltfr_find_clk(plat_dat, \"tx\");\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:325:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-326-\tplat_dat-\u003eclks_config = eic7700_clks_config;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-334-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:335:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-336-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c=362=static struct platform_driver eic7700_dwmac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-365-\t\t.name           = \"eic7700-eth-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c:366:\t\t.pm             = \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c-367-\t\t.of_match_table = eic7700_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-16-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:17:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-18-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=19=static int dwmac_generic_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-21-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:22:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-23-\tint ret;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-24-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:25:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-26-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-29-\tif (pdev-\u003edev.of_node) {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:30:\t\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-31-\t\tif (IS_ERR(plat_dat)) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-48-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:49:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-50-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c=69=static struct platform_driver dwmac_generic_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-72-\t\t.name           = STMMAC_RESOURCE_NAME,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c:73:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-generic.c-74-\t\t.of_match_table = dwmac_generic_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-22-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:23:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-24-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=44=struct imx_dwmac_ops {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-48-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:49:\tint (*fix_soc_reset)(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-50-\tint (*set_intf_mode)(struct imx_priv_data *dwmac, u8 phy_intf_sel);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=154=static int imx_dwmac_set_clk_tx_rate(void *bsp_priv, struct clk *clk_tx_i,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-160-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:161:\treturn stmmac_set_clk_tx_rate(bsp_priv, clk_tx_i, interface, speed);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-162-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=190=static void imx93_dwmac_fix_speed(void *priv, phy_interface_t interface,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-228-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:229:static int imx_dwmac_mx93_reset(struct stmmac_priv *priv)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-230-{\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=293=static int imx_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-295-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:296:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-297-\tstruct imx_priv_data *dwmac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-300-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:301:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-302-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-308-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:309:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-310-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-338-\tdwmac-\u003eplat_dat = plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:339:\tdwmac-\u003ebase_addr = stmmac_res.addr;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-340-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-353-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:354:\tret = stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-355-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c=392=static struct platform_driver imx_dwmac_driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-393-\t.probe  = imx_dwmac_probe,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:394:\t.remove = stmmac_pltfr_remove,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-395-\t.driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-396-\t\t.name           = \"imx-dwmac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c:397:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-imx.c-398-\t\t.of_match_table = imx_dwmac_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-20-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:21:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-22-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=154=static int ingenic_mac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-156-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:157:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-158-\tstruct ingenic_mac *mac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-162-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:163:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-164-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-166-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:167:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-168-\tif (IS_ERR(plat_dat))\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-214-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:215:\treturn devm_stmmac_pltfr_probe(pdev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-216-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c=272=static struct platform_driver ingenic_mac_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-275-\t\t.name\t= \"ingenic-mac\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c:276:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ingenic.c-277-\t\t.of_match_table = ingenic_mac_of_matches,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-15-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:16:#include \"stmmac_platform.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-17-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=42=static int intel_eth_plat_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-44-\tstruct plat_stmmacenet_data *plat_dat;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:45:\tstruct stmmac_resources stmmac_res;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-46-\tstruct intel_dwmac *dwmac;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-49-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:50:\tret = stmmac_get_platform_resources(pdev, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-51-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-53-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:54:\tplat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-55-\tif (IS_ERR(plat_dat)) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-114-\tplat_dat-\u003eclk_tx_i = dwmac-\u003etx_clk;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:115:\tplat_dat-\u003eset_clk_tx_rate = stmmac_set_clk_tx_rate;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-116-\tplat_dat-\u003ebsp_priv = dwmac;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-117-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:118:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-119-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=130=static void intel_eth_plat_remove(struct platform_device *pdev)\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-131-{\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:132:\tstruct intel_dwmac *dwmac = get_stmmac_bsp_priv(\u0026pdev-\u003edev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-133-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:134:\tstmmac_pltfr_remove(pdev);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-135-\tif (dwmac-\u003edata-\u003etx_clk_en)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=139=static struct platform_driver intel_eth_plat_driver = {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-143-\t\t.name\t\t= \"intel-eth-plat\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:144:\t\t.pm\t\t= \u0026stmmac_pltfr_pm_ops,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-145-\t\t.of_match_table = intel_eth_plat_match,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-12-#include \"stmmac.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:13:#include \"stmmac_ptp.h\"\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-14-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=25=struct intel_priv_data {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-39- */\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:40:struct stmmac_pci_func_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-41-\tunsigned int func;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-44-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:45:struct stmmac_pci_dmi_data {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:46:\tconst struct stmmac_pci_func_data *func;\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-47-\tsize_t nfuncs;\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-49-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:50:struct stmmac_pci_info {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-51-\tint (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat);\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=91=static const int adln_tsn_lane_regs[] = {6};\n\n"
}

							input: 42118
							output: 48
							thoughts: 1455

**Analyzing the STMMAC VLAN Handling Patch**

Okay, let's break this down. First, I see they've removed the `stmmac_rx_vlan` function. This is interesting. This function was responsible for driver-level VLAN tag stripping. It looks like it was being called when hardware VLAN acceleration wasn't enabled. The diff shows this function being called when `priv->hw->hw_vlan_en` is false. They've effectively replaced this driver-level VLAN handling with a check of `priv->hw->hw_vlan_en` being true in the `stmmac_dispatch_skb_zc` and `stmmac_rx` functions.

Looking further, in the `__stmmac_dvr_probe` function, I notice they're now setting `NETIF_F_HW_VLAN_CTAG_RX` unconditionally for XMAC based cores. Previously, this feature and `NETIF_F_HW_VLAN_STAG_RX` were set. This suggests that with XMAC cores, hardware VLAN acceleration for C-TAGs is now always enabled, and there's no longer a need for the driver to handle VLAN stripping. This seems like a simplification. Also, the `NETIF_F_HW_VLAN_STAG_RX` has been dropped.

The changes in `stmmac_selftests.c` appear to involve the phylink clock. They are stopping and then unblocking the phylink rx clock before and after the test.

My immediate thought is that this is a move to standardize VLAN handling in the STMMAC driver, relying on the hardware capabilities of the XMAC core. This could improve performance by offloading the VLAN processing to the hardware. The previous driver-level implementation was probably a fallback for older hardware or configurations where hardware acceleration wasn't available, or perhaps the support has just become more robust. I'll need to check the commit log to understand the rationale behind removing `NETIF_F_HW_VLAN_STAG_RX` and ensure there are no regressions.

{
  "Expression": "commit eda8bfbeea1b1fc6491ac438a6d8971dfa8290c5"
}

{
  "error": "no matches"
}

							input: 44082
							output: 50
							thoughts: 59

**Navigating the Git Landscape**

Okay, so the current commit is just HEAD, which means I have a starting point, but I need to dig deeper. Grepping for the commit hash directly won't be fruitful within the files themselves - that's a common oversight, I know. Instead of a direct search, let's try a more targeted approach. Given the context, my initial thought is to examine `stmmac_main.c` around line 7960 to 7980. That region often contains crucial driver logic, and it seems a promising spot to start tracing the changes related to what I'm looking for, given the hints from previous analysis. Let's see if that specific area holds any clues.

{
  "File": "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
  "FirstLine": 7960,
  "LineCount": 40
}

{
  "Contents": "7960:\t\t\t\t\tgoto error_hw_init;\n7961:\t\t\t\t}\n7962:\t\n7963:\t\t\t\tpriv-\u003edma_cap.host_dma_width = 32;\n7964:\t\t\t}\n7965:\t\t}\n7966:\t\n7967:\t\tndev-\u003efeatures |= ndev-\u003ehw_features | NETIF_F_HIGHDMA;\n7968:\t\tndev-\u003ewatchdog_timeo = msecs_to_jiffies(watchdog);\n7969:\t#ifdef STMMAC_VLAN_TAG_USED\n7970:\t\tif (dwmac_is_xmac(priv-\u003eplat-\u003ecore_type)) {\n7971:\t\t\tndev-\u003efeatures |= NETIF_F_HW_VLAN_CTAG_RX;\n7972:\t\t\tndev-\u003ehw_features |= NETIF_F_HW_VLAN_CTAG_RX;\n7973:\t\t\tpriv-\u003ehw-\u003ehw_vlan_en = true;\n7974:\t\t}\n7975:\t\tif (priv-\u003edma_cap.vlhash) {\n7976:\t\t\tndev-\u003efeatures |= NETIF_F_HW_VLAN_CTAG_FILTER;\n7977:\t\t\tndev-\u003efeatures |= NETIF_F_HW_VLAN_STAG_FILTER;\n7978:\t\t}\n7979:\t\tif (priv-\u003edma_cap.vlins)\n7980:\t\t\tndev-\u003efeatures |= NETIF_F_HW_VLAN_CTAG_TX;\n7981:\t#endif\n7982:\t\tpriv-\u003emsg_enable = netif_msg_init(debug, default_msg_level);\n7983:\t\n7984:\t\tpriv-\u003exstats.threshold = tc;\n7985:\t\n7986:\t\t/* Initialize RSS */\n7987:\t\trxq = priv-\u003eplat-\u003erx_queues_to_use;\n7988:\t\tnetdev_rss_key_fill(priv-\u003erss.key, sizeof(priv-\u003erss.key));\n7989:\t\tfor (i = 0; i \u003c ARRAY_SIZE(priv-\u003erss.table); i++)\n7990:\t\t\tpriv-\u003erss.table[i] = ethtool_rxfh_indir_default(i, rxq);\n7991:\t\n7992:\t\tif (priv-\u003edma_cap.rssen \u0026\u0026 priv-\u003eplat-\u003erss_en)\n7993:\t\t\tndev-\u003efeatures |= NETIF_F_RXHASH;\n7994:\t\n7995:\t\tndev-\u003evlan_features |= ndev-\u003efeatures;\n7996:\t\n7997:\t\t/* MTU range: 46 - hw-specific max */\n7998:\t\tndev-\u003emin_mtu = ETH_ZLEN - ETH_HLEN;\n7999:\t\n"
}

							input: 45083
							output: 42
							thoughts: 437

**Analyzing the Reachability of STMMAC for Fuzzing**

Okay, let's break this down. The question at hand is whether changes to the `stmmac` driver warrant fuzzing. The guidelines are clear: return `WorthFuzzing=false` if the code modifications are *structurally unreachable*, and they give examples like vendor-specific hardware or driver teardown callbacks. Conversely, we return `WorthFuzzing=true` if the changes touch *reachable* executable code, particularly drivers accessible through virtual buses.

The core of my thought process is: *Is* `stmmac` structurally unreachable in a standard QEMU environment, specifically amd64? Can I instantiate and probe it within a typical QEMU setup? To determine this, let's focus on identifying if the `stmmac` driver is accessible through virtual buses, like virtio or loopback, or any emulated devices.

First, I need to confirm what `stmmac` *is*. It's the Synopsys DesignWare Ethernet MAC driver and STMicroelectronics MAC driver, located in `drivers/net/ethernet/stmicro/stmmac/`. That's a good starting point. Next, how is it probed or instantiated? I'll need to dig into the `Kconfig` file in that directory, `drivers/net/ethernet/stmicro/stmmac/Kconfig`, to see what architectures or configurations enable it. If it's dependent on a specific physical hardware that's not emulated or virtualized, then it's a "no." But, if it can be enabled on amd64 in a QEMU setup with a virtual device, then it's a "yes." Let's see what `Kconfig` reveals.

{
  "File": "drivers/net/ethernet/stmicro/stmmac/Kconfig",
  "FirstLine": 1,
  "LineCount": 60
}

{
  "Contents": "   1:\t# SPDX-License-Identifier: GPL-2.0-only\n   2:\tconfig STMMAC_ETH\n   3:\t\ttristate \"STMicroelectronics Multi-Gigabit Ethernet driver\"\n   4:\t\tdepends on HAS_IOMEM \u0026\u0026 HAS_DMA\n   5:\t\tdepends on PTP_1588_CLOCK_OPTIONAL\n   6:\t\tdepends on ETHTOOL_NETLINK\n   7:\t\tselect MII\n   8:\t\tselect PCS_XPCS\n   9:\t\tselect PAGE_POOL\n  10:\t\tselect PHYLINK\n  11:\t\tselect CRC32\n  12:\t\tselect RESET_CONTROLLER\n  13:\t\tselect NET_DEVLINK\n  14:\t\thelp\n  15:\t\t  This is the driver for the Ethernet IPs built around a\n  16:\t\t  Synopsys IP Core.\n  17:\t\n  18:\tif STMMAC_ETH\n  19:\t\n  20:\tconfig STMMAC_SELFTESTS\n  21:\t\tbool \"Support for STMMAC Selftests\"\n  22:\t\tdepends on INET\n  23:\t\tdefault n\n  24:\t\thelp\n  25:\t\t  This adds support for STMMAC Selftests using ethtool. Enable this\n  26:\t\t  feature if you are facing problems with your HW and submit the test\n  27:\t\t  results to the netdev Mailing List.\n  28:\t\n  29:\tconfig STMMAC_PLATFORM\n  30:\t\ttristate \"STMMAC Platform bus support\"\n  31:\t\tselect MFD_SYSCON\n  32:\t\tdefault y\n  33:\t\thelp\n  34:\t\t  This selects the platform specific bus support for the stmmac driver.\n  35:\t\t  This is the driver used on several SoCs:\n  36:\t\t  STi, Allwinner, Amlogic Meson, Altera SOCFPGA.\n  37:\t\n  38:\t\t  If you have a controller with this interface, say Y or M here.\n  39:\t\n  40:\t\t  If unsure, say N.\n  41:\t\n  42:\tif STMMAC_PLATFORM\n  43:\t\n  44:\tconfig DWMAC_DWC_QOS_ETH\n  45:\t\ttristate \"Support for snps,dwc-qos-ethernet.txt DT binding.\"\n  46:\t\tselect CRC32\n  47:\t\tselect MII\n  48:\t\tdepends on OF \u0026\u0026 HAS_DMA\n  49:\t\thelp\n  50:\t\t  Support for chips using the snps,dwc-qos-ethernet.txt DT binding.\n  51:\t\n  52:\tconfig DWMAC_GENERIC\n  53:\t\ttristate \"Generic driver for DWMAC\"\n  54:\t\tdefault STMMAC_PLATFORM\n  55:\t\thelp\n  56:\t\t  Generic DWMAC driver for platforms that don't require any\n  57:\t\t  platform specific code to function or is using platform\n  58:\t\t  data for setup.\n  59:\t\n  60:\tconfig DWMAC_ANARION\n"
}

							input: 46727
							output: 44
							thoughts: 12

Here's my summary, as though I'm thinking it:

**PCI Configuration Exploration**

Alright, time to dive into the PCI-specific configurations within `Kconfig`. I need to get a clear picture of how things are structured and what options are available. Understanding the PCI section of `Kconfig` is crucial; it's the foundation for configuring device drivers and platform support related to PCI devices. I'm looking for the key variables, dependencies, and default settings. This will inform my next steps in [ *insert relevant task/project - e.g., enabling a specific device, resolving a conflict, optimizing power usage, understanding a particular driver* ]. Let's see what we've got.

{
  "File": "drivers/net/ethernet/stmicro/stmmac/Kconfig",
  "FirstLine": 370,
  "LineCount": 50
}

{
  "Contents": " 370:\t\n 371:\tendif # STMMAC_PLATFORM\n 372:\t\n 373:\tconfig STMMAC_LIBPCI\n 374:\t\ttristate\n 375:\t\thelp\n 376:\t\t  This option enables the PCI bus helpers for the stmmac driver.\n 377:\t\n 378:\tconfig DWMAC_INTEL\n 379:\t\ttristate \"Intel GMAC support\"\n 380:\t\tdefault X86\n 381:\t\tdepends on X86 \u0026\u0026 PCI\n 382:\t\tdepends on COMMON_CLK\n 383:\t\tdepends on ACPI\n 384:\t\thelp\n 385:\t\t  This selects the Intel platform specific bus support for the\n 386:\t\t  stmmac driver. This driver is used for Intel Quark/EHL/TGL.\n 387:\t\n 388:\tconfig DWMAC_LOONGSON\n 389:\t\ttristate \"Loongson PCI DWMAC support\"\n 390:\t\tdefault MACH_LOONGSON64\n 391:\t\tdepends on (MACH_LOONGSON64 || COMPILE_TEST) \u0026\u0026 PCI\n 392:\t\tdepends on COMMON_CLK\n 393:\t\tselect STMMAC_LIBPCI\n 394:\t\thelp\n 395:\t\t  This selects the LOONGSON PCI bus support for the stmmac driver,\n 396:\t\t  Support for ethernet controller on Loongson-2K1000 SoC and LS7A1000 bridge.\n 397:\t\n 398:\tconfig DWMAC_MOTORCOMM\n 399:\t\ttristate \"Motorcomm PCI DWMAC support\"\n 400:\t\tdepends on PCI\n 401:\t\tselect MOTORCOMM_PHY\n 402:\t\tselect STMMAC_LIBPCI\n 403:\t\thelp\n 404:\t\t  This enables glue driver for Motorcomm DWMAC-based PCI Ethernet\n 405:\t\t  controllers. Currently only YT6801 is supported.\n 406:\t\n 407:\tconfig STMMAC_PCI\n 408:\t\ttristate \"STMMAC PCI bus support\"\n 409:\t\tdepends on PCI\n 410:\t\tdepends on COMMON_CLK\n 411:\t\tselect STMMAC_LIBPCI\n 412:\t\thelp\n 413:\t\t  This selects the platform specific bus support for the stmmac driver.\n 414:\t\t  This driver was tested on XLINX XC2V3000 FF1152AMT0221\n 415:\t\t  D1215994A VIRTEX FPGA board and SNPS QoS IPK Prototyping Kit.\n 416:\t\n 417:\t\t  If you have a controller with this interface, say Y or M here.\n 418:\t\n 419:\t\t  If unsure, say N.\n"
}

							input: 47687
							output: 29
							thoughts: 658

**My QEMU Networking Conundrum**

Okay, so I'm looking at different DWMAC and STMMAC drivers: `DWMAC_INTEL` for Intel Quark/EHL/TGL, `DWMAC_LOONGSON`, `DWMAC_MOTORCOMM`, `STMMAC_PCI` for Xilinx FPGA and Synopsys prototyping, and `STMMAC_PLATFORM` for a slew of ARM, MIPS, and RISC-V SoCs like STi, Allwinner, Rockchip, Tegra, i.MX8, etc. My primary question is whether QEMU offers any emulation of the Intel GMAC (Quark, EHL, TGL) or Synopsys GMAC, especially considering I'm working with an x86/amd64 target.

Let me refresh my memory of the available PCI network devices in QEMU. Peeking into `hw/net/`, I see familiar names like e1000, rtl8139, pcnet, virtio, various Sun Microsystems devices, and a few ARM-specific NICs like the Aspeed AST2400/AST2500, Freescale i.MX FEC, Xilinx Zynq, and Allwinner H3. Wait a minute, what about that Allwinner entry? The `allwinner-sun8i-emac.c` driver is for the A83T/H3 EMAC, which in Linux is sun8i-emac, or dwmac-sun8i. I have to keep in mind, even if it's ARM, my target is amd64!

The crux of the matter: **Is there an emulated DWMAC or STMMAC device in QEMU for x86/amd64?** After reviewing the existing drivers, the answer appears to be a definitive no. QEMU doesn't seem to emulate Intel Quark / Elkhart Lake / Tiger Lake GMAC PCI devices, nor does it appear to have STMMAC PCI cards (0x0700:0x1108) or Synopsys prototyping kits emulated.

Now, a secondary, but related, question: **Is there a way for a userspace interface to bind to or create a STMMAC device on my host?** I'll need to investigate whether there are any virtual STMMAC devices in Linux, searching the `drivers/` or `arch/x86/` directories. This is critical to the potential of a solution.

{
  "Expression": "stmmac",
  "PathPrefix": "arch/x86/"
}

{
  "error": "no matches"
}

							input: 48933
							output: 25
							thoughts: 23

Here's a summary of my thought process, as requested:

**Checking for Test-Driven STMMAC Creation**

Okay, before I dive too deep into this, I need to take a quick step back and make sure I'm not reinventing the wheel. My initial thought is, "Wait, before I start writing new code or debugging something elaborate, could there already be a test, possibly in the `tools/testing` directory or something similar, that actually *creates* an STMMAC instance?" It's entirely possible that a pre-existing test might already be doing what I need, making this entire process much simpler. Or, perhaps any of the other existing tests will create the necessary object, as part of their operations. I want to check for existing functionality before I invest more time and effort. I'll need to look closely at existing tests, and the dependencies within those tests, to see if I can leverage anything there. Time is always of the essence, and finding an existing example is always faster.

{
  "Expression": "stmmac",
  "PathPrefix": "tools/"
}

{
  "error": "no matches"
}

							input: 49207
							output: 32
							thoughts: 70

**Investigating Ethernet Device Creation**

Okay, let's dive into this. I need to understand how these Ethernet devices are initialized, so my first instinct is to look at the standard place, the `drivers/net/ethernet/stmicro/stmmac/` directory. That seems like a logical starting point for understanding Ethernet device driver creation.

But, I'm trying to figure out if there is some platform device creation happening outside the obvious places, specifically, if any x86 code is responsible for this. Let me check for platform device creation in relation to Intel or STMicroelectronics devices.

So, I will try searching for the PCI ID tables, looking for something like `intel_eth_pci_id_table` or `stmmac_id_table`. That will give me a quick way to see if there's any platform-specific binding going on that I need to be aware of. I'll use those tables as my search terms. That should pinpoint relevant initialization paths if those IDs are being used.

{
  "Expression": "intel_eth_pci_id_table",
  "PathPrefix": "drivers/"
}

{
  "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1362=static void intel_eth_pci_remove(struct pci_dev *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1394-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1395:static const struct pci_device_id intel_eth_pci_id_table[] = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1396-\t{ PCI_DEVICE_DATA(INTEL, QUARK, \u0026quark_info) },\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1414-};\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1415:MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1416-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1417=static struct pci_driver intel_eth_pci_driver = {\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1418-\t.name = \"intel-eth-pci\",\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1419:\t.id_table = intel_eth_pci_id_table,\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1420-\t.probe = intel_eth_pci_probe,\n"
}

							input: 49980
							output: 42
							thoughts: 143

**Investigating the Reachability of Ethernet Self-Tests**

Okay, so I'm digging into network driver testing, specifically thinking about how syzkaller might be able to trigger certain functionality. The `dwmac-intel.c` file is interesting, clearly for Intel's Quark, Elkhart Lake, Tiger Lake, and Jasper Lake SoCs. But hold on, the standard QEMU x86_64 virt machine (pc / q35) doesn't emulate any of those specifically. That makes direct execution a non-starter.

Now, let's back up. Can syzkaller somehow get at the `stmmac_main.c` or `stmmac_selftests.c` code? That's the real question. Ah, wait! I'm onto something. Let's trace this. In `stmmac_selftest_run`, it's called by `ethtool_ops->self_test`! That's a good lead. Now I need to see where else `stmmac_selftest_run` is referenced to confirm that hypothesis. Hopefully there is a reasonable answer!

{
  "Expression": "stmmac_selftest_run",
  "PathPrefix": "drivers/net/ethernet/stmicro/stmmac/"
}

{
  "Output": "drivers/net/ethernet/stmicro/stmmac/stmmac.h=432=struct timespec64 stmmac_calc_tas_basetime(ktime_t old_base_time,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-436-#if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:437:void stmmac_selftest_run(struct net_device *dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-438-\t\t\t struct ethtool_test *etest, u64 *buf);\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h=440=int stmmac_selftest_get_count(struct stmmac_priv *priv);\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-441-#else\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:442:static inline void stmmac_selftest_run(struct net_device *dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-443-\t\t\t\t       struct ethtool_test *etest, u64 *buf)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c=1095=static const struct ethtool_ops stmmac_ethtool_ops = {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c-1108-\t.set_pauseparam = stmmac_set_pauseparam,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c:1109:\t.self_test = stmmac_selftest_run,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c-1110-\t.get_ethtool_stats = stmmac_get_ethtool_stats,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c=1831=static const struct stmmac_test {\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c-1931-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c:1932:void stmmac_selftest_run(struct net_device *dev,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c-1933-\t\t\t struct ethtool_test *etest, u64 *buf)\n"
}

							input: 51120
							output: 30
							thoughts: 158

**My Reasoning on the stmmac Driver**

Okay, so I'm looking at this `stmmac` code and trying to understand its structure and call flow. It looks like the `stmmac_ethtool_ops.self_test` function is specifically designed to work on a network device (`ndev`) that the `stmmac` driver itself has registered. That makes sense, keeps things organized. Then I see that functions like `stmmac_rx`, `stmmac_dispatch_skb_zc`, and `__stmmac_dvr_probe` are all internal to the `stmmac` driver. Ah ha! They're not meant to be called from the outside.

Hold on a second... to *use* any of those internal functions, the `stmmac` network device has to exist first. It has to be probed and initialized by the driver! So the creation of that network device is key. I need to trace back from those internal functions to how the `stmmac` device actually gets set up.

Alright, let's see... `__stmmac_dvr_probe` is called by `stmmac_dvr_probe`. Okay, so `stmmac_dvr_probe` is the entry point, the first place to look. Let's find out where `stmmac_dvr_probe` is called from. I'll use grep to check for where that function is used within the project.

{
  "Expression": "stmmac_dvr_probe",
  "PathPrefix": "drivers/"
}

{
  "Output": "drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c=283=static int dwc_eth_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-329-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c:330:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c-331-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c=42=static int intel_eth_plat_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-117-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c:118:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c-119-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c=1263=static int intel_eth_pci_probe(struct pci_dev *pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1340-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c:1341:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-intel.c-1342-\tif (ret) {\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c=374=static int ipq806x_gmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-482-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c:483:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c-484-\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c=498=static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-561-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c:562:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c-563-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c=42=static int lpc18xx_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-67-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c:68:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c-69-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c=599=static int mediatek_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-641-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:642:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c-643-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c=47=static int meson6_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-72-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:73:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson.c-74-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c=382=static int meson8b_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-463-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c:464:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-meson8b.c-465-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c=293=static int motorcomm_probe(struct pci_dev *pdev, const struct pci_device_id *id)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-358-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c:359:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-motorcomm.c-360-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c=48=static int rzn1_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-67-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c:68:\tret = stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c-69-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c=35=static int sophgo_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-64-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c:65:\treturn stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c-66-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c=147=static int spacemit_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-206-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c:207:\treturn stmmac_dvr_probe(dev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c-208-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c=90=static int starfive_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-152-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c:153:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c-154-}\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c=525=static int stm32_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-578-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c:579:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c-580-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c=1105=static int sun8i_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1201-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1202:\t/* the MAC is runtime suspended after stmmac_dvr_probe(), so we\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1203-\t * need to ensure the MAC resume back before other operations such\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1208-\t/* The mux must be registered after parent MDIO\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c:1209:\t * so after stmmac_dvr_probe()\ndrivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c-1210-\t */\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c=214=static int tegra_mgbe_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-375-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c:376:\terr = stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c-377-\tif (err \u003c 0)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c=205=static int visconti_eth_dwmac_probe(struct platform_device *pdev)\n--\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-236-\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c:237:\tret = stmmac_dvr_probe(\u0026pdev-\u003edev, plat_dat, \u0026stmmac_res);\ndrivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c-238-\tif (ret)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h=411=void stmmac_dvr_remove(struct device *dev);\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h:412:int stmmac_dvr_probe(struct device *device,\ndrivers/net/ethernet/stmicro/stmmac/stmmac.h-413-\t\t     struct plat_stmmacenet_data *plat_dat,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c=7791=EXPORT_SYMBOL_GPL(stmmac_plat_dat_alloc);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-7792-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:7793:static int __stmmac_dvr_probe(struct device *device,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-7794-\t\t\t      struct plat_stmmacenet_data *plat_dat,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8095-/**\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8096: * stmmac_dvr_probe\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8097- * @dev: device pointer\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8104- */\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8105:int stmmac_dvr_probe(struct device *dev, struct plat_stmmacenet_data *plat_dat,\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8106-\t\t     struct stmmac_resources *res)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8115-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8116:\tret = __stmmac_dvr_probe(dev, plat_dat, res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8117-\tif (ret \u0026\u0026 plat_dat-\u003eexit)\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8121-}\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c:8122:EXPORT_SYMBOL_GPL(stmmac_dvr_probe);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_main.c-8123-\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c=118=static int stmmac_pci_probe(struct pci_dev *pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-182-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:183:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, \u0026res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_pci.c-184-}\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c=846=int stmmac_pltfr_probe(struct platform_device *pdev,\n--\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c-854-\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:855:\treturn stmmac_dvr_probe(\u0026pdev-\u003edev, plat, res);\ndrivers/net/ethernet/stmicro/stmmac/stmmac_platform.c-856-}\n"
}

							input: 55742
							output: 161
							thoughts: 2111

**Analysis of Patch for Fuzzing Suitability**

Okay, let's break this down. My initial assessment is that this patch is *not* suitable for fuzzing. The key here is the "structurally unreachable" concept. My expertise tells me we need to determine if the modified code *can actually execute* within the target environment (amd64 with standard QEMU or GCE VMs).

First, I observe that the patch impacts the `stmmac` driver, specifically within the `drivers/net/ethernet/stmicro/stmmac/` directory. Right away, this flags a red. My experience with these drivers says `stmmac` is heavily tied to specific hardware: mostly embedded SoCs and some specific Intel platforms. It's not a generic x86 device.

I immediately think about the probe paths. The driver is either going to be bound through a platform driver (targeting specific hardware SoCs: STi, sunxi, Rockchip, MediaTek etc.) or through a PCI driver for specific vendor/device IDs. I know this from countless past engagements. These drivers *require* their respective hardware. None of these devices are emulated by standard QEMU on amd64 or GCE VMs. I remember this point explicitly being called out in the instructions.

I double-check section 2 of the instructions, focusing on the "structurally unreachable hardware" clause. It explicitly calls out NIC drivers requiring physical ASIC/PCIe cards that aren't emulated in standard QEMU. That's a perfect fit! `stmmac` screams "specific hardware".

Now, I try to double-check. I look in QEMU sources. Is there any emulation for the Synopsys DesignWare MAC (dwmac)? I find a reference to `allwinner-sun8i-emac.c`, but that's for an older EMAC and specifically for an Allwinner H3 SoC. I recognize that that's an ARM architecture, not amd64. Even if this EMAC emulation was using a dwmac driver, there's no way to run that ARM code on amd64. It's simply not possible.

I go back and check the standard QEMU x86 machine types (PC, Q35, microvm) – do they have anything like `stmmac`? No. They have standard PCI network devices (Intel, Realtek, AMD, VirtIO), not anything tied to Synopsys DesignWare MAC or any of the SoCs `stmmac` typically supports. I know this list well.

I consider *if* `stmmac` could be "faked" as a virtual device, platform device or mock driver. No. This driver is very dependent on memory-mapped I/O registers and DMA buffers associated with Synopsys DesignWare MAC registers. Without those registers, the driver can't probe, can't operate. No amount of virtualisation or mocking will change this.

I'm now back to the key criteria and reread it: "REACHABILITY IS THE PRIMARY GATE." If the code can't execute in standard virtualization, it must *not* be fuzzed. And this patch modifies the execution paths of `stmmac_rx`, `stmmac_dispatch_skb_zc`, `__stmmac_dvr_probe`, and `stmmac_selftest_run`. These methods will never execute on standard x86 environments because there's no matching hardware.

I examine the patch's scope. It's *only* touching `stmmac_main.c` and `stmmac_selftests.c`. It's not changing headers or core subsystems. This reinforces my conclusion. This narrows it down.

My analysis now confirms this patch falls under the "structurally unreachable hardware" category, specifically: "Vendor-specific PCIe switches, SmartNICs, or GPU drivers...requiring physical ASIC/PCIe cards not emulated in standard QEMU."

Let's now finalize the reasoning for the tool. Concise explanation is key: The patch modifies `drivers/net/ethernet/stmicro/stmmac/` code, which belongs to the Synopsys DesignWare/STMicroelectronics Ethernet MAC driver (`stmmac`). This code executes during device probe, packet reception, and self-tests. The targeted hardware controller is structurally absent in standard virtualized test environments (QEMU or GCE on amd64), and therefore the modified code is unreachable.

I'm confident in calling `set-results` with:
- `WorthFuzzing`: false
- `FocusSymbols`: []
- `EnableConfigs`: []
- `Reasoning`: "The patch modifies the Synopsys DesignWare/STMicroelectronics Ethernet MAC driver (`stmmac`). Because

{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.",
  "WorthFuzzing": false
}

{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch modifies the STMicroelectronics / Synopsys DesignWare Ethernet MAC (stmmac) driver in `stmmac_main.c` and `stmmac_selftests.c`. The modified functions (VLAN stripping in receive paths, probe configuration, and ethtool self-tests) require a probed stmmac device. This driver targets specific embedded SoCs and specialized PCI hardware (e.g., Intel Quark/EHL/TGL) that are not emulated in standard virtualized environments (QEMU/GCE on amd64). Consequently, the code is structurally unreachable for fuzzing.",
  "WorthFuzzing": false
}

{
  "WorthFuzzing": false
}

LLM Calls Summary:
Total Calls	Total Tokens	Avg Tokens	Total Duration (Seconds)	Avg Duration (Seconds)

Tool Calls Summary:
Total Calls	Total Duration (Seconds)	Avg Duration (Seconds)