AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/09/12 02:47	flow	patch-triage	1m Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "KMSANReasoning": "", "NeedsKMSAN": false, "Reasoning": "The patched file (drivers/net/phy/qcom/qca808x.c) is a hardware device driver for the Qualcomm Atheros QCA8081 Ethernet PHY transceiver. It requires physical hardware connected to an MDIO bus and is not emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable for fuzzing.", "WorthFuzzing": false }
1/1	2026/09/12 02:47	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit d2d7e41f4a9036661ddb898b3a79a797bb448ee3\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Sat Sep 12 02:47:41 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/phy/qcom/qca808x.c b/drivers/net/phy/qcom/qca808x.c\nindex 8eb51b1a006c4..68fd4d0fe31b8 100644\n--- a/drivers/net/phy/qcom/qca808x.c\n+++ b/drivers/net/phy/qcom/qca808x.c\n@@ -200,8 +200,8 @@ static int qca808x_config_init(struct phy_device phydev)\n \tstruct qca808x_priv priv = phydev-\u003epriv;\n \tint ret;\n \n-\t/* Default to LED Active High if active-low not in DT /\n-\tif (priv-\u003eled_polarity_mode == -1) {\n+\t/ Set LED Active High unless active-low was requested in DT /\n+\tif (priv-\u003eled_polarity_mode != 1) {\n \t\tret = phy_set_bits_mmd(phydev, MDIO_MMD_AN,\n \t\t\t\t QCA808X_MMD7_LED_POLARITY_CTRL,\n \t\t\t\t QCA808X_LED_ACTIVE_HIGH);\n@@ -603,6 +603,9 @@ static int qca808x_led_polarity_set(struct phy_device phydev, int index,\n \t\tcase PHY_LED_ACTIVE_LOW:\n \t\t\tactive_low = true;\n \t\t\tbreak;\n+\t\tcase PHY_LED_ACTIVE_HIGH:\n+\t\t\tactive_low = false;\n+\t\t\tbreak;\n \t\tdefault:\n \t\t\treturn -EINVAL;\n \t\t}\n" }
2/1	2026/09/12 02:47	agent	patch-evaluator	1m Model: core Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patched file (drivers/net/phy/qcom/qca808x.c) is a hardware device driver for the Qualcomm Atheros QCA8081 Ethernet PHY transceiver. It requires physical hardware connected to an MDIO bus and is not emulated in standard virtualized environments (QEMU/GCE), making the modified code 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 d2d7e41f4a9036661ddb898b3a79a797bb448ee3 Author: syz-cluster <triage@syzkaller.com> Date: Sat Sep 12 02:47:41 2026 +0000 syz-cluster: applied patch under review diff --git a/drivers/net/phy/qcom/qca808x.c b/drivers/net/phy/qcom/qca808x.c index 8eb51b1a006c4..68fd4d0fe31b8 100644 --- a/drivers/net/phy/qcom/qca808x.c +++ b/drivers/net/phy/qcom/qca808x.c @@ -200,8 +200,8 @@ static int qca808x_config_init(struct phy_device phydev) struct qca808x_priv priv = phydev->priv; int ret; - /* Default to LED Active High if active-low not in DT / - if (priv->led_polarity_mode == -1) { + / Set LED Active High unless active-low was requested in DT / + if (priv->led_polarity_mode != 1) { ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, QCA808X_MMD7_LED_POLARITY_CTRL, QCA808X_LED_ACTIVE_HIGH); @@ -603,6 +603,9 @@ static int qca808x_led_polarity_set(struct phy_device phydev, int index, case PHY_LED_ACTIVE_LOW: active_low = true; break; + case PHY_LED_ACTIVE_HIGH: + active_low = false; + break; default: return -EINVAL; }
3/2	2026/09/12 02:47	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 3087 output: 31 thoughts: 524 Thoughts: Analyzing the QCA808x PHY Driver Patch Alright, let's dive into this patch for the Qualcomm Atheros QCA808x Ethernet PHY transceiver driver. I'm seeing a modification within `drivers/net/phy/qcom/qca808x.c`. First, I need to understand what this device is and its context within the broader system. Since it's a PHY driver, it's responsible for the physical layer interface of the network connection. Now, looking at the diff, it seems we're modifying the LED polarity configuration. Specifically, it appears the original code defaulted to "LED Active High" if no specific setting was provided through the Device Tree (DT). The change refines this logic. The original check was if `priv->led_polarity_mode` was set to -1, whereas this update is checking if it is not equal to 1. The original implementation was saying "if not specified, use high". I like that this implementation changes to "if not explicitly low, set to high". The code is also adding `PHY_LED_ACTIVE_HIGH` into the `qca808x_led_polarity_set` function. I see they're using `phy_set_bits_mmd` to configure the Multi-Media-Dependent (MMD) registers of the PHY. This is standard practice. The change should ensure that we're explicitly setting the LED polarity based on the DT configuration. The addition of the `PHY_LED_ACTIVE_HIGH` case in the `qca808x_led_polarity_set` function is a great addition, providing consistency. Next, I'll need to check the Kconfig to confirm the visibility of this driver.
4/2	2026/09/12 02:47	tool	grepper	0m Args: { "Expression": "qca808x", "PathPrefix": "drivers/net/phy" } Results: { "Output": "drivers/net/phy/qcom/Makefile=4=obj-$(CONFIG_QCA83XX_PHY)\t+= qca83xx.o\ndrivers/net/phy/qcom/Makefile:5:obj-$(CONFIG_QCA808X_PHY)\t+= qca808x.o\ndrivers/net/phy/qcom/Makefile-6-obj-$(CONFIG_QCA807X_PHY)\t+= qca807x.o\n--\ndrivers/net/phy/qcom/at803x.c=1113=static struct phy_driver at803x_driver[] = {\n--\ndrivers/net/phy/qcom/at803x.c-1215-\t.cable_test_start\t= ipq5018_cable_test_start,\ndrivers/net/phy/qcom/at803x.c:1216:\t.cable_test_get_status\t= qca808x_cable_test_get_status,\ndrivers/net/phy/qcom/at803x.c-1217-\t.soft_reset\t\t= genphy_soft_reset,\n--\ndrivers/net/phy/qcom/qca807x.c=181=static int qca807x_led_hw_control_enable(struct phy_device phydev, u8 index)\n--\ndrivers/net/phy/qcom/qca807x.c-188-\treg = QCA807X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca807x.c:189:\treturn qca808x_led_reg_hw_control_enable(phydev, reg);\ndrivers/net/phy/qcom/qca807x.c-190-}\n--\ndrivers/net/phy/qcom/qca807x.c=238=static bool qca807x_led_hw_control_status(struct phy_device phydev, u8 index)\n--\ndrivers/net/phy/qcom/qca807x.c-245-\treg = QCA807X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca807x.c:246:\treturn qca808x_led_reg_hw_control_status(phydev, reg);\ndrivers/net/phy/qcom/qca807x.c-247-}\n--\ndrivers/net/phy/qcom/qca807x.c=330=static int qca807x_led_brightness_set(struct phy_device phydev,\n--\ndrivers/net/phy/qcom/qca807x.c-346-\treg = QCA807X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca807x.c:347:\treturn qca808x_led_reg_brightness_set(phydev, reg, value);\ndrivers/net/phy/qcom/qca807x.c-348-}\n--\ndrivers/net/phy/qcom/qca807x.c=350=static int qca807x_led_blink_set(struct phy_device phydev, u8 index,\n--\ndrivers/net/phy/qcom/qca807x.c-359-\treg = QCA807X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca807x.c:360:\treturn qca808x_led_reg_blink_set(phydev, reg, delay_on, delay_off);\ndrivers/net/phy/qcom/qca807x.c-361-}\n--\ndrivers/net/phy/qcom/qca807x.c=791=static struct phy_driver qca807x_drivers[] = {\n--\ndrivers/net/phy/qcom/qca807x.c-807-\t\t.cable_test_start\t= qca807x_cable_test_start,\ndrivers/net/phy/qcom/qca807x.c:808:\t\t.cable_test_get_status\t= qca808x_cable_test_get_status,\ndrivers/net/phy/qcom/qca807x.c-809-\t\t.update_stats\t\t= qca807x_update_stats,\n--\ndrivers/net/phy/qcom/qca807x.c-830-\t\t.cable_test_start\t= qca807x_cable_test_start,\ndrivers/net/phy/qcom/qca807x.c:831:\t\t.cable_test_get_status\t= qca808x_cable_test_get_status,\ndrivers/net/phy/qcom/qca807x.c-832-\t\t.led_brightness_set = qca807x_led_brightness_set,\n--\ndrivers/net/phy/qcom/qca808x.c=92=MODULE_LICENSE(\"GPL\");\ndrivers/net/phy/qcom/qca808x.c-93-\ndrivers/net/phy/qcom/qca808x.c:94:struct qca808x_priv {\ndrivers/net/phy/qcom/qca808x.c-95-\tint led_polarity_mode;\n--\ndrivers/net/phy/qcom/qca808x.c-98-\ndrivers/net/phy/qcom/qca808x.c:99:static int qca808x_phy_fast_retrain_config(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-100-{\n--\ndrivers/net/phy/qcom/qca808x.c-133-\ndrivers/net/phy/qcom/qca808x.c:134:static int qca808x_phy_ms_seed_enable(struct phy_device phydev, bool enable)\ndrivers/net/phy/qcom/qca808x.c-135-{\n--\ndrivers/net/phy/qcom/qca808x.c-148-\ndrivers/net/phy/qcom/qca808x.c:149:static bool qca808x_is_prefer_master(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-150-{\n--\ndrivers/net/phy/qcom/qca808x.c-154-\ndrivers/net/phy/qcom/qca808x.c:155:static bool qca808x_has_fast_retrain_or_slave_seed(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-156-{\n--\ndrivers/net/phy/qcom/qca808x.c-159-\ndrivers/net/phy/qcom/qca808x.c:160:static bool qca808x_is_1g_only(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-161-{\n--\ndrivers/net/phy/qcom/qca808x.c-170-\ndrivers/net/phy/qcom/qca808x.c:171:static void qca808x_fill_possible_interfaces(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-172-{\n--\ndrivers/net/phy/qcom/qca808x.c-176-\ndrivers/net/phy/qcom/qca808x.c:177:\tif (!qca808x_is_1g_only(phydev))\ndrivers/net/phy/qcom/qca808x.c-178-\t\t__set_bit(PHY_INTERFACE_MODE_2500BASEX, possible);\n--\ndrivers/net/phy/qcom/qca808x.c-180-\ndrivers/net/phy/qcom/qca808x.c:181:static int qca808x_probe(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-182-{\ndrivers/net/phy/qcom/qca808x.c-183-\tstruct device dev = \u0026phydev-\u003emdio.dev;\ndrivers/net/phy/qcom/qca808x.c:184:\tstruct qca808x_priv priv;\ndrivers/net/phy/qcom/qca808x.c-185-\n--\ndrivers/net/phy/qcom/qca808x.c-197-\ndrivers/net/phy/qcom/qca808x.c:198:static int qca808x_config_init(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-199-{\ndrivers/net/phy/qcom/qca808x.c:200:\tstruct qca808x_priv priv = phydev-\u003epriv;\ndrivers/net/phy/qcom/qca808x.c-201-\tint ret;\n--\ndrivers/net/phy/qcom/qca808x.c-224-\ndrivers/net/phy/qcom/qca808x.c:225:\tif (qca808x_has_fast_retrain_or_slave_seed(phydev)) {\ndrivers/net/phy/qcom/qca808x.c-226-\t\t/ Config the fast retrain for the link 2500M /\ndrivers/net/phy/qcom/qca808x.c:227:\t\tret = qca808x_phy_fast_retrain_config(phydev);\ndrivers/net/phy/qcom/qca808x.c-228-\t\tif (ret)\n--\ndrivers/net/phy/qcom/qca808x.c-234-\ndrivers/net/phy/qcom/qca808x.c:235:\t\tif (!qca808x_is_prefer_master(phydev)) {\ndrivers/net/phy/qcom/qca808x.c-236-\t\t\t/ Enable seed and configure lower ramdom seed to make phy\n--\ndrivers/net/phy/qcom/qca808x.c-238-\t\t\t /\ndrivers/net/phy/qcom/qca808x.c:239:\t\t\tret = qca808x_phy_ms_seed_enable(phydev, true);\ndrivers/net/phy/qcom/qca808x.c-240-\t\t\tif (ret)\n--\ndrivers/net/phy/qcom/qca808x.c-244-\ndrivers/net/phy/qcom/qca808x.c:245:\tqca808x_fill_possible_interfaces(phydev);\ndrivers/net/phy/qcom/qca808x.c-246-\n--\ndrivers/net/phy/qcom/qca808x.c-256-\ndrivers/net/phy/qcom/qca808x.c:257:static int qca808x_read_status(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-258-{\n--\ndrivers/net/phy/qcom/qca808x.c-294-\t\t /\ndrivers/net/phy/qcom/qca808x.c:295:\t\tif (qca808x_has_fast_retrain_or_slave_seed(phydev)) {\ndrivers/net/phy/qcom/qca808x.c-296-\t\t\tif (phydev-\u003emaster_slave_state == MASTER_SLAVE_STATE_ERR \|\|\ndrivers/net/phy/qcom/qca808x.c:297:\t\t\t qca808x_is_prefer_master(phydev)) {\ndrivers/net/phy/qcom/qca808x.c:298:\t\t\t\tqca808x_phy_ms_seed_enable(phydev, false);\ndrivers/net/phy/qcom/qca808x.c-299-\t\t\t} else {\ndrivers/net/phy/qcom/qca808x.c:300:\t\t\t\tqca808x_phy_ms_seed_enable(phydev, true);\ndrivers/net/phy/qcom/qca808x.c-301-\t\t\t}\n--\ndrivers/net/phy/qcom/qca808x.c-307-\ndrivers/net/phy/qcom/qca808x.c:308:static int qca808x_soft_reset(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-309-{\n--\ndrivers/net/phy/qcom/qca808x.c-315-\ndrivers/net/phy/qcom/qca808x.c:316:\tif (qca808x_has_fast_retrain_or_slave_seed(phydev))\ndrivers/net/phy/qcom/qca808x.c:317:\t\tret = qca808x_phy_ms_seed_enable(phydev, true);\ndrivers/net/phy/qcom/qca808x.c-318-\n--\ndrivers/net/phy/qcom/qca808x.c-321-\ndrivers/net/phy/qcom/qca808x.c:322:static int qca808x_cable_test_start(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-323-{\n--\ndrivers/net/phy/qcom/qca808x.c-362-\ndrivers/net/phy/qcom/qca808x.c:363:static int qca808x_get_features(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-364-{\n--\ndrivers/net/phy/qcom/qca808x.c-371-\t/* The autoneg ability is not existed in bit3 of MMD7.1,\ndrivers/net/phy/qcom/qca808x.c:372:\t * but it is supported by qca808x PHY, so we add it here\ndrivers/net/phy/qcom/qca808x.c-373-\t * manually.\n--\ndrivers/net/phy/qcom/qca808x.c-380-\t /\ndrivers/net/phy/qcom/qca808x.c:381:\tif (qca808x_is_1g_only(phydev))\ndrivers/net/phy/qcom/qca808x.c-382-\t\tlinkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev-\u003esupported);\n--\ndrivers/net/phy/qcom/qca808x.c-386-\ndrivers/net/phy/qcom/qca808x.c:387:static int qca808x_config_aneg(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-388-{\n--\ndrivers/net/phy/qcom/qca808x.c-412-\ndrivers/net/phy/qcom/qca808x.c:413:static void qca808x_link_change_notify(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-414-{\n--\ndrivers/net/phy/qcom/qca808x.c-423-\ndrivers/net/phy/qcom/qca808x.c:424:static int qca808x_led_parse_netdev(struct phy_device phydev, unsigned long rules,\ndrivers/net/phy/qcom/qca808x.c-425-\t\t\t\t u16 offload_trigger)\n--\ndrivers/net/phy/qcom/qca808x.c-455-\ndrivers/net/phy/qcom/qca808x.c:456:static int qca808x_led_hw_control_enable(struct phy_device phydev, u8 index)\ndrivers/net/phy/qcom/qca808x.c-457-{\n--\ndrivers/net/phy/qcom/qca808x.c-463-\treg = QCA808X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca808x.c:464:\treturn qca808x_led_reg_hw_control_enable(phydev, reg);\ndrivers/net/phy/qcom/qca808x.c-465-}\ndrivers/net/phy/qcom/qca808x.c-466-\ndrivers/net/phy/qcom/qca808x.c:467:static int qca808x_led_hw_is_supported(struct phy_device phydev, u8 index,\ndrivers/net/phy/qcom/qca808x.c-468-\t\t\t\t unsigned long rules)\n--\ndrivers/net/phy/qcom/qca808x.c-474-\ndrivers/net/phy/qcom/qca808x.c:475:\treturn qca808x_led_parse_netdev(phydev, rules, \u0026offload_trigger);\ndrivers/net/phy/qcom/qca808x.c-476-}\ndrivers/net/phy/qcom/qca808x.c-477-\ndrivers/net/phy/qcom/qca808x.c:478:static int qca808x_led_hw_control_set(struct phy_device phydev, u8 index,\ndrivers/net/phy/qcom/qca808x.c-479-\t\t\t\t unsigned long rules)\n--\ndrivers/net/phy/qcom/qca808x.c-488-\ndrivers/net/phy/qcom/qca808x.c:489:\tret = qca808x_led_parse_netdev(phydev, rules, \u0026offload_trigger);\ndrivers/net/phy/qcom/qca808x.c-490-\tif (ret)\n--\ndrivers/net/phy/qcom/qca808x.c-492-\ndrivers/net/phy/qcom/qca808x.c:493:\tret = qca808x_led_hw_control_enable(phydev, index);\ndrivers/net/phy/qcom/qca808x.c-494-\tif (ret)\n--\ndrivers/net/phy/qcom/qca808x.c-501-\ndrivers/net/phy/qcom/qca808x.c:502:static bool qca808x_led_hw_control_status(struct phy_device phydev, u8 index)\ndrivers/net/phy/qcom/qca808x.c-503-{\n--\ndrivers/net/phy/qcom/qca808x.c-509-\treg = QCA808X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca808x.c:510:\treturn qca808x_led_reg_hw_control_status(phydev, reg);\ndrivers/net/phy/qcom/qca808x.c-511-}\ndrivers/net/phy/qcom/qca808x.c-512-\ndrivers/net/phy/qcom/qca808x.c:513:static int qca808x_led_hw_control_get(struct phy_device phydev, u8 index,\ndrivers/net/phy/qcom/qca808x.c-514-\t\t\t\t unsigned long rules)\n--\ndrivers/net/phy/qcom/qca808x.c-522-\t/ Check if we have hw control enabled /\ndrivers/net/phy/qcom/qca808x.c:523:\tif (qca808x_led_hw_control_status(phydev, index))\ndrivers/net/phy/qcom/qca808x.c-524-\t\treturn -EINVAL;\n--\ndrivers/net/phy/qcom/qca808x.c-548-\ndrivers/net/phy/qcom/qca808x.c:549:static int qca808x_led_hw_control_reset(struct phy_device phydev, u8 index)\ndrivers/net/phy/qcom/qca808x.c-550-{\n--\ndrivers/net/phy/qcom/qca808x.c-561-\ndrivers/net/phy/qcom/qca808x.c:562:static int qca808x_led_brightness_set(struct phy_device phydev,\ndrivers/net/phy/qcom/qca808x.c-563-\t\t\t\t u8 index, enum led_brightness value)\n--\ndrivers/net/phy/qcom/qca808x.c-571-\tif (!value) {\ndrivers/net/phy/qcom/qca808x.c:572:\t\tret = qca808x_led_hw_control_reset(phydev, index);\ndrivers/net/phy/qcom/qca808x.c-573-\t\tif (ret)\n--\ndrivers/net/phy/qcom/qca808x.c-577-\treg = QCA808X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca808x.c:578:\treturn qca808x_led_reg_brightness_set(phydev, reg, value);\ndrivers/net/phy/qcom/qca808x.c-579-}\ndrivers/net/phy/qcom/qca808x.c-580-\ndrivers/net/phy/qcom/qca808x.c:581:static int qca808x_led_blink_set(struct phy_device phydev, u8 index,\ndrivers/net/phy/qcom/qca808x.c-582-\t\t\t\t unsigned long delay_on,\n--\ndrivers/net/phy/qcom/qca808x.c-590-\treg = QCA808X_MMD7_LED_FORCE_CTRL(index);\ndrivers/net/phy/qcom/qca808x.c:591:\treturn qca808x_led_reg_blink_set(phydev, reg, delay_on, delay_off);\ndrivers/net/phy/qcom/qca808x.c-592-}\ndrivers/net/phy/qcom/qca808x.c-593-\ndrivers/net/phy/qcom/qca808x.c:594:static int qca808x_led_polarity_set(struct phy_device phydev, int index,\ndrivers/net/phy/qcom/qca808x.c-595-\t\t\t\t unsigned long modes)\ndrivers/net/phy/qcom/qca808x.c-596-{\ndrivers/net/phy/qcom/qca808x.c:597:\tstruct qca808x_priv priv = phydev-\u003epriv;\ndrivers/net/phy/qcom/qca808x.c-598-\tbool active_low = false;\n--\ndrivers/net/phy/qcom/qca808x.c-632-\ndrivers/net/phy/qcom/qca808x.c:633:static int qca808x_update_stats(struct phy_device phydev)\ndrivers/net/phy/qcom/qca808x.c-634-{\ndrivers/net/phy/qcom/qca808x.c:635:\tstruct qca808x_priv priv = phydev-\u003epriv;\ndrivers/net/phy/qcom/qca808x.c-636-\n--\ndrivers/net/phy/qcom/qca808x.c-639-\ndrivers/net/phy/qcom/qca808x.c:640:static void qca808x_get_phy_stats(struct phy_device phydev,\ndrivers/net/phy/qcom/qca808x.c-641-\t\t\t\t struct ethtool_eth_phy_stats eth_stats,\n--\ndrivers/net/phy/qcom/qca808x.c-643-{\ndrivers/net/phy/qcom/qca808x.c:644:\tstruct qca808x_priv priv = phydev-\u003epriv;\ndrivers/net/phy/qcom/qca808x.c-645-\n--\ndrivers/net/phy/qcom/qca808x.c-648-\ndrivers/net/phy/qcom/qca808x.c:649:static struct phy_driver qca808x_driver[] = {\ndrivers/net/phy/qcom/qca808x.c-650-{\n--\ndrivers/net/phy/qcom/qca808x.c-654-\t.flags\t\t\t= PHY_POLL_CABLE_TEST,\ndrivers/net/phy/qcom/qca808x.c:655:\t.probe\t\t\t= qca808x_probe,\ndrivers/net/phy/qcom/qca808x.c-656-\t.config_intr\t\t= at803x_config_intr,\n--\ndrivers/net/phy/qcom/qca808x.c-661-\t.get_wol\t\t= at803x_get_wol,\ndrivers/net/phy/qcom/qca808x.c:662:\t.get_features\t\t= qca808x_get_features,\ndrivers/net/phy/qcom/qca808x.c:663:\t.config_aneg\t\t= qca808x_config_aneg,\ndrivers/net/phy/qcom/qca808x.c-664-\t.suspend\t\t= genphy_suspend,\ndrivers/net/phy/qcom/qca808x.c-665-\t.resume\t\t\t= genphy_resume,\ndrivers/net/phy/qcom/qca808x.c:666:\t.read_status\t\t= qca808x_read_status,\ndrivers/net/phy/qcom/qca808x.c:667:\t.config_init\t\t= qca808x_config_init,\ndrivers/net/phy/qcom/qca808x.c:668:\t.soft_reset\t\t= qca808x_soft_reset,\ndrivers/net/phy/qcom/qca808x.c:669:\t.cable_test_start\t= qca808x_cable_test_start,\ndrivers/net/phy/qcom/qca808x.c:670:\t.cable_test_get_status\t= qca808x_cable_test_get_status,\ndrivers/net/phy/qcom/qca808x.c:671:\t.link_change_notify\t= qca808x_link_change_notify,\ndrivers/net/phy/qcom/qca808x.c:672:\t.led_brightness_set\t= qca808x_led_brightness_set,\ndrivers/net/phy/qcom/qca808x.c:673:\t.led_blink_set\t\t= qca808x_led_blink_set,\ndrivers/net/phy/qcom/qca808x.c:674:\t.led_hw_is_supported\t= qca808x_led_hw_is_supported,\ndrivers/net/phy/qcom/qca808x.c:675:\t.led_hw_control_set\t= qca808x_led_hw_control_set,\ndrivers/net/phy/qcom/qca808x.c:676:\t.led_hw_control_get\t= qca808x_led_hw_control_get,\ndrivers/net/phy/qcom/qca808x.c:677:\t.led_polarity_set\t= qca808x_led_polarity_set,\ndrivers/net/phy/qcom/qca808x.c:678:\t.update_stats\t\t= qca808x_update_stats,\ndrivers/net/phy/qcom/qca808x.c:679:\t.get_phy_stats\t\t= qca808x_get_phy_stats,\ndrivers/net/phy/qcom/qca808x.c-680-}, };\ndrivers/net/phy/qcom/qca808x.c-681-\ndrivers/net/phy/qcom/qca808x.c:682:module_phy_driver(qca808x_driver);\ndrivers/net/phy/qcom/qca808x.c-683-\ndrivers/net/phy/qcom/qca808x.c:684:static const struct mdio_device_id __maybe_unused qca808x_tbl[] = {\ndrivers/net/phy/qcom/qca808x.c-685-\t{ PHY_ID_MATCH_EXACT(QCA8081_PHY_ID) },\n--\ndrivers/net/phy/qcom/qca808x.c-688-\ndrivers/net/phy/qcom/qca808x.c:689:MODULE_DEVICE_TABLE(mdio, qca808x_tbl);\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c=491=EXPORT_SYMBOL_GPL(at803x_cdt_wait_for_completion);\ndrivers/net/phy/qcom/qcom-phy-lib.c-492-\ndrivers/net/phy/qcom/qcom-phy-lib.c:493:static bool qca808x_cdt_fault_length_valid(int cdt_code)\ndrivers/net/phy/qcom/qcom-phy-lib.c-494-{\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-512-\ndrivers/net/phy/qcom/qcom-phy-lib.c:513:static int qca808x_cable_test_result_trans(int cdt_code)\ndrivers/net/phy/qcom/qcom-phy-lib.c-514-{\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-537-\ndrivers/net/phy/qcom/qcom-phy-lib.c:538:static int qca808x_cdt_fault_length(struct phy_device phydev, int pair,\ndrivers/net/phy/qcom/qcom-phy-lib.c-539-\t\t\t\t int result)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-572-\ndrivers/net/phy/qcom/qcom-phy-lib.c:573:static int qca808x_cable_test_get_pair_status(struct phy_device phydev, u8 pair,\ndrivers/net/phy/qcom/qcom-phy-lib.c-574-\t\t\t\t\t u16 status)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-595-\ndrivers/net/phy/qcom/qcom-phy-lib.c:596:\tresult = qca808x_cable_test_result_trans(pair_code);\ndrivers/net/phy/qcom/qcom-phy-lib.c-597-\tethnl_cable_test_result(phydev, pair, result);\ndrivers/net/phy/qcom/qcom-phy-lib.c-598-\ndrivers/net/phy/qcom/qcom-phy-lib.c:599:\tif (qca808x_cdt_fault_length_valid(pair_code)) {\ndrivers/net/phy/qcom/qcom-phy-lib.c:600:\t\tlength = qca808x_cdt_fault_length(phydev, pair, result);\ndrivers/net/phy/qcom/qcom-phy-lib.c-601-\t\tethnl_cable_test_fault_length(phydev, pair, length);\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-606-\ndrivers/net/phy/qcom/qcom-phy-lib.c:607:int qca808x_cable_test_get_status(struct phy_device phydev, bool finished)\ndrivers/net/phy/qcom/qcom-phy-lib.c-608-{\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-626-\ndrivers/net/phy/qcom/qcom-phy-lib.c:627:\tret = qca808x_cable_test_get_pair_status(phydev, ETHTOOL_A_CABLE_PAIR_A, val);\ndrivers/net/phy/qcom/qcom-phy-lib.c-628-\tif (ret)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-630-\ndrivers/net/phy/qcom/qcom-phy-lib.c:631:\tret = qca808x_cable_test_get_pair_status(phydev, ETHTOOL_A_CABLE_PAIR_B, val);\ndrivers/net/phy/qcom/qcom-phy-lib.c-632-\tif (ret)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-634-\ndrivers/net/phy/qcom/qcom-phy-lib.c:635:\tret = qca808x_cable_test_get_pair_status(phydev, ETHTOOL_A_CABLE_PAIR_C, val);\ndrivers/net/phy/qcom/qcom-phy-lib.c-636-\tif (ret)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-638-\ndrivers/net/phy/qcom/qcom-phy-lib.c:639:\tret = qca808x_cable_test_get_pair_status(phydev, ETHTOOL_A_CABLE_PAIR_D, val);\ndrivers/net/phy/qcom/qcom-phy-lib.c-640-\tif (ret)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-646-}\ndrivers/net/phy/qcom/qcom-phy-lib.c:647:EXPORT_SYMBOL_GPL(qca808x_cable_test_get_status);\ndrivers/net/phy/qcom/qcom-phy-lib.c-648-\ndrivers/net/phy/qcom/qcom-phy-lib.c:649:int qca808x_led_reg_hw_control_enable(struct phy_device phydev, u16 reg)\ndrivers/net/phy/qcom/qcom-phy-lib.c-650-{\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-653-}\ndrivers/net/phy/qcom/qcom-phy-lib.c:654:EXPORT_SYMBOL_GPL(qca808x_led_reg_hw_control_enable);\ndrivers/net/phy/qcom/qcom-phy-lib.c-655-\ndrivers/net/phy/qcom/qcom-phy-lib.c:656:bool qca808x_led_reg_hw_control_status(struct phy_device phydev, u16 reg)\ndrivers/net/phy/qcom/qcom-phy-lib.c-657-{\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-662-}\ndrivers/net/phy/qcom/qcom-phy-lib.c:663:EXPORT_SYMBOL_GPL(qca808x_led_reg_hw_control_status);\ndrivers/net/phy/qcom/qcom-phy-lib.c-664-\ndrivers/net/phy/qcom/qcom-phy-lib.c:665:int qca808x_led_reg_brightness_set(struct phy_device phydev,\ndrivers/net/phy/qcom/qcom-phy-lib.c-666-\t\t\t\t u16 reg, enum led_brightness value)\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-672-}\ndrivers/net/phy/qcom/qcom-phy-lib.c:673:EXPORT_SYMBOL_GPL(qca808x_led_reg_brightness_set);\ndrivers/net/phy/qcom/qcom-phy-lib.c-674-\ndrivers/net/phy/qcom/qcom-phy-lib.c:675:int qca808x_led_reg_blink_set(struct phy_device phydev, u16 reg,\ndrivers/net/phy/qcom/qcom-phy-lib.c-676-\t\t\t unsigned long delay_on,\n--\ndrivers/net/phy/qcom/qcom-phy-lib.c-700-}\ndrivers/net/phy/qcom/qcom-phy-lib.c:701:EXPORT_SYMBOL_GPL(qca808x_led_reg_blink_set);\ndrivers/net/phy/qcom/qcom-phy-lib.c-702-\n--\ndrivers/net/phy/qcom/qcom.h=257=int at803x_cdt_wait_for_completion(struct phy_device phydev,\ndrivers/net/phy/qcom/qcom.h-258-\t\t\t\t u32 cdt_en);\ndrivers/net/phy/qcom/qcom.h:259:int qca808x_cable_test_get_status(struct phy_device phydev, bool finished);\ndrivers/net/phy/qcom/qcom.h:260:int qca808x_led_reg_hw_control_enable(struct phy_device phydev, u16 reg);\ndrivers/net/phy/qcom/qcom.h:261:bool qca808x_led_reg_hw_control_status(struct phy_device phydev, u16 reg);\ndrivers/net/phy/qcom/qcom.h:262:int qca808x_led_reg_brightness_set(struct phy_device phydev,\ndrivers/net/phy/qcom/qcom.h-263-\t\t\t\t u16 reg, enum led_brightness value);\ndrivers/net/phy/qcom/qcom.h:264:int qca808x_led_reg_blink_set(struct phy_device phydev, u16 reg,\ndrivers/net/phy/qcom/qcom.h-265-\t\t\t unsigned long *delay_on,\n" }
5/2	2026/09/12 02:47	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 14389 output: 34 thoughts: 32 Thoughts: Okay, here's my take on those thoughts, tailored for an expert audience: Investigating the QCA808X PHY Configuration Right, let's dive in. My immediate thought is to confirm the definition of `CONFIG_QCA808X_PHY`. No need to reinvent the wheel, so I'll jump straight into `drivers/net/phy/qcom/Kconfig`. I need to understand how this PHY is enabled or disabled, any dependencies it might have, and what other options might be relevant in this configuration space. This is fundamental; I can't proceed effectively until I know what the build system expects and how this specific PHY integrates into the broader Qualcomm networking driver landscape. Understanding the Kconfig entry is the essential first step to understanding its full implications.
6/2	2026/09/12 02:47	tool	grepper	0m Args: { "Expression": "config QCA808X_PHY", "PathPrefix": "drivers/net/phy" } Results: { "Output": "drivers/net/phy/qcom/Kconfig=12=config QCA83XX_PHY\n--\ndrivers/net/phy/qcom/Kconfig-17-\ndrivers/net/phy/qcom/Kconfig:18:config QCA808X_PHY\ndrivers/net/phy/qcom/Kconfig-19-\ttristate \"Qualcomm QCA808x PHYs\"\n" }
7/2	2026/09/12 02:47	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 14733 output: 37 thoughts: 23 Thoughts: Here's my attempt at summarizing the thought process, tailored for an expert audience and written in the first person: Investigating the QCOM PHY Configuration Okay, let's dive into the `drivers/net/phy/qcom/Kconfig` file, specifically around line 18. I'm assuming that area probably deals with the core configuration options for the Qualcomm PHY drivers. Given the file name, it's highly likely this is where I'll find the dependencies, default settings, and maybe even some conditional logic governing which specific QCOM PHY implementations are enabled during the build. This is the place to start if I'm trying to understand or modify the inclusion of a particular QCOM PHY in a kernel build. I anticipate finding things like whether certain PHYs are enabled based on architecture, board type, or specific SoC features. Hopefully, it's well-commented so I can quickly grok the intent behind each option. Let's see what's in there.
8/2	2026/09/12 02:47	tool	read-file	0m Args: { "File": "drivers/net/phy/qcom/Kconfig", "FirstLine": 1, "LineCount": 40 } Results: { "Contents": " 1:\t# SPDX-License-Identifier: GPL-2.0-only\n 2:\tconfig QCOM_NET_PHYLIB\n 3:\t\ttristate\n 4:\t\n 5:\tconfig AT803X_PHY\n 6:\t\ttristate \"Qualcomm Atheros AR803X PHYs\"\n 7:\t\tselect QCOM_NET_PHYLIB\n 8:\t\tdepends on REGULATOR\n 9:\t\thelp\n 10:\t\t Currently supports the AR8030, AR8031, AR8033, AR8035, IPQ5018 model\n 11:\t\n 12:\tconfig QCA83XX_PHY\n 13:\t\ttristate \"Qualcomm Atheros QCA833x PHYs\"\n 14:\t\tselect QCOM_NET_PHYLIB\n 15:\t\thelp\n 16:\t\t Currently supports the internal QCA8337(Internal qca8k PHY) model\n 17:\t\n 18:\tconfig QCA808X_PHY\n 19:\t\ttristate \"Qualcomm QCA808x PHYs\"\n 20:\t\tselect QCOM_NET_PHYLIB\n 21:\t\thelp\n 22:\t\t Currently supports the QCA8081 model\n 23:\t\n 24:\tconfig QCA807X_PHY\n 25:\t\ttristate \"Qualcomm QCA807x PHYs\"\n 26:\t\tselect QCOM_NET_PHYLIB\n 27:\t\tselect PHY_PACKAGE\n 28:\t\tdepends on OF_MDIO\n 29:\t\thelp\n 30:\t\t Currently supports the Qualcomm QCA8072, QCA8075 and the PSGMII\n 31:\t\t control PHY.\n" }
9/2	2026/09/12 02:47	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 15457 output: 29 thoughts: 177 Thoughts: Probing MDIO PHYs in a Virtual Environment Okay, so I'm thinking about how the QCA808X, which is an MDIO Ethernet PHY, gets probed and bound in the kernel. I see it uses `MODULE_DEVICE_TABLE` for the MDIO subsystem and then registers its driver with `module_phy_driver`. But, the real question is, can I instantiate or probe an MDIO PHY driver like this within a virtual environment, like QEMU or Google Compute Engine, without having the physical hardware present? I need to explore if there are ways to create these MDIO PHYs virtually, maybe through sysfs or some other virtual device mechanism. I'm wondering if something like `mdio-gpio`, `mdio-bitbang`, or even a `mdio-mock` device exists to simulate this. Can I create these MDIO phy devices from user space or through a virtual device somehow? Time to dig into the code base. I'll hit `grepper` and see what comes up regarding MDIO driver registration, sysfs interactions, and maybe even Netlink usage for clues. I need to understand how the MDIO drivers are managed and if there's a virtual path to test or develop them without needing actual hardware.
10/2	2026/09/12 02:47	tool	grepper	0m Args: { "Expression": "mdio_bus", "PathPrefix": "drivers/net/phy" } Results: { "Output": "\nFull output is too long, showing 500 out of 760 lines.\nUse more precise expression if possible.\n\ndrivers/net/phy/Makefile=4=libphy-y\t\t\t:= phy.o phy-c45.o phy-core.o phy_device.o \\\ndrivers/net/phy/Makefile-5-\t\t\t\t linkmode.o phy_link_topology.o \\\ndrivers/net/phy/Makefile:6:\t\t\t\t phy_caps.o mdio_bus_provider.o phy_port.o \\\ndrivers/net/phy/Makefile-7-\t\t\t\t mdio_device.o\n--\ndrivers/net/phy/Makefile=16=libphy-$(CONFIG_OPEN_ALLIANCE_HELPERS) += open_alliance_helpers.o\ndrivers/net/phy/Makefile-17-\ndrivers/net/phy/Makefile:18:obj-$(CONFIG_PHYLIB)\t\t+= mdio_bus.o\ndrivers/net/phy/Makefile-19-obj-$(CONFIG_PHYLINK)\t\t+= phylink.o\n--\ndrivers/net/phy/air_en8811h.c=413=static int an8811hb_mcu_assert(struct phy_device phydev)\n--\ndrivers/net/phy/air_en8811h.c-417-\ndrivers/net/phy/air_en8811h.c:418:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/air_en8811h.c-419-\n--\ndrivers/net/phy/air_en8811h.c-432-unlock:\ndrivers/net/phy/air_en8811h.c:433:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/air_en8811h.c-434-\treturn ret;\n--\ndrivers/net/phy/air_en8811h.c=437=static int an8811hb_mcu_deassert(struct phy_device phydev)\n--\ndrivers/net/phy/air_en8811h.c-441-\ndrivers/net/phy/air_en8811h.c:442:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/air_en8811h.c-443-\n--\ndrivers/net/phy/air_en8811h.c-457-unlock:\ndrivers/net/phy/air_en8811h.c:458:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/air_en8811h.c-459-\treturn ret;\n--\ndrivers/net/phy/bcm-phy-lib.c=33=int bcm_phy_write_exp(struct phy_device phydev, u16 reg, u16 val)\n--\ndrivers/net/phy/bcm-phy-lib.c-36-\ndrivers/net/phy/bcm-phy-lib.c:37:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-38-\trc = __bcm_phy_write_exp(phydev, reg, val);\ndrivers/net/phy/bcm-phy-lib.c:39:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-40-\n--\ndrivers/net/phy/bcm-phy-lib.c=62=int bcm_phy_read_exp(struct phy_device phydev, u16 reg)\n--\ndrivers/net/phy/bcm-phy-lib.c-65-\ndrivers/net/phy/bcm-phy-lib.c:66:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-67-\trc = __bcm_phy_read_exp(phydev, reg);\ndrivers/net/phy/bcm-phy-lib.c:68:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-69-\n--\ndrivers/net/phy/bcm-phy-lib.c=94=int bcm_phy_modify_exp(struct phy_device phydev, u16 reg, u16 mask, u16 set)\n--\ndrivers/net/phy/bcm-phy-lib.c-97-\ndrivers/net/phy/bcm-phy-lib.c:98:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-99-\tret = __bcm_phy_modify_exp(phydev, reg, mask, set);\ndrivers/net/phy/bcm-phy-lib.c:100:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-101-\n--\ndrivers/net/phy/bcm-phy-lib.c=271=int bcm_phy_read_rdb(struct phy_device phydev, u16 rdb)\n--\ndrivers/net/phy/bcm-phy-lib.c-274-\ndrivers/net/phy/bcm-phy-lib.c:275:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-276-\tret = __bcm_phy_read_rdb(phydev, rdb);\ndrivers/net/phy/bcm-phy-lib.c:277:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-278-\n--\ndrivers/net/phy/bcm-phy-lib.c=295=int bcm_phy_write_rdb(struct phy_device phydev, u16 rdb, u16 val)\n--\ndrivers/net/phy/bcm-phy-lib.c-298-\ndrivers/net/phy/bcm-phy-lib.c:299:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-300-\tret = __bcm_phy_write_rdb(phydev, rdb, val);\ndrivers/net/phy/bcm-phy-lib.c:301:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-302-\n--\ndrivers/net/phy/bcm-phy-lib.c=327=int bcm_phy_modify_rdb(struct phy_device phydev, u16 rdb, u16 mask, u16 set)\n--\ndrivers/net/phy/bcm-phy-lib.c-330-\ndrivers/net/phy/bcm-phy-lib.c:331:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-332-\tret = __bcm_phy_modify_rdb(phydev, rdb, mask, set);\ndrivers/net/phy/bcm-phy-lib.c:333:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-334-\n--\ndrivers/net/phy/bcm-phy-lib.c=660=static int _bcm_phy_cable_test_start(struct phy_device phydev, bool is_rdb)\n--\ndrivers/net/phy/bcm-phy-lib.c-671-\ndrivers/net/phy/bcm-phy-lib.c:672:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-673-\tif (is_rdb) {\n--\ndrivers/net/phy/bcm-phy-lib.c-690-\ndrivers/net/phy/bcm-phy-lib.c:691:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-692-\n--\ndrivers/net/phy/bcm-phy-lib.c=742=static int _bcm_phy_cable_test_get_status(struct phy_device phydev,\n--\ndrivers/net/phy/bcm-phy-lib.c-748-\ndrivers/net/phy/bcm-phy-lib.c:749:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-750-\n--\ndrivers/net/phy/bcm-phy-lib.c-799-\ndrivers/net/phy/bcm-phy-lib.c:800:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm-phy-lib.c-801-\n--\ndrivers/net/phy/bcm54140.c=432=static int bcm54140_base_read_rdb(struct phy_device phydev, u16 rdb)\n--\ndrivers/net/phy/bcm54140.c-435-\ndrivers/net/phy/bcm54140.c:436:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm54140.c-437-\tret = __phy_package_write(phydev, BCM54140_BASE_ADDR,\n--\ndrivers/net/phy/bcm54140.c-445-out:\ndrivers/net/phy/bcm54140.c:446:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm54140.c-447-\treturn ret;\n--\ndrivers/net/phy/bcm54140.c=450=static int bcm54140_base_write_rdb(struct phy_device phydev,\n--\ndrivers/net/phy/bcm54140.c-454-\ndrivers/net/phy/bcm54140.c:455:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/bcm54140.c-456-\tret = __phy_package_write(phydev, BCM54140_BASE_ADDR,\n--\ndrivers/net/phy/bcm54140.c-464-out:\ndrivers/net/phy/bcm54140.c:465:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/bcm54140.c-466-\treturn ret;\n--\ndrivers/net/phy/broadcom.c=877=static int brcm_fet_config_init(struct phy_device phydev)\n--\ndrivers/net/phy/broadcom.c-932-\ndrivers/net/phy/broadcom.c:933:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-934-\n--\ndrivers/net/phy/broadcom.c-936-\tif (err \u003c 0) {\ndrivers/net/phy/broadcom.c:937:\t\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-938-\t\treturn err;\n--\ndrivers/net/phy/broadcom.c-973-\ndrivers/net/phy/broadcom.c:974:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-975-\n--\ndrivers/net/phy/broadcom.c=1036=static int brcm_fet_suspend(struct phy_device phydev)\n--\ndrivers/net/phy/broadcom.c-1053-\ndrivers/net/phy/broadcom.c:1054:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-1055-\n--\ndrivers/net/phy/broadcom.c-1057-\tif (err \u003c 0) {\ndrivers/net/phy/broadcom.c:1058:\t\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-1059-\t\treturn err;\n--\ndrivers/net/phy/broadcom.c-1075-\ndrivers/net/phy/broadcom.c:1076:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/broadcom.c-1077-\n--\ndrivers/net/phy/dap8211r.c=76=static int dap8211r_read_ext(struct phy_device phydev, u16 reg)\n--\ndrivers/net/phy/dap8211r.c-79-\ndrivers/net/phy/dap8211r.c:80:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/dap8211r.c-81-\tret = __phy_write(phydev, DAP8211R_EXT_ADD, reg);\n--\ndrivers/net/phy/dap8211r.c-86-out:\ndrivers/net/phy/dap8211r.c:87:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/dap8211r.c-88-\treturn ret;\n--\ndrivers/net/phy/dap8211r.c=104=static int dap8211r_modify_ext(struct phy_device phydev, u16 reg, u16 mask, u16 set)\n--\ndrivers/net/phy/dap8211r.c-107-\ndrivers/net/phy/dap8211r.c:108:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/dap8211r.c-109-\tret = __phy_write(phydev, DAP8211R_EXT_ADD, reg);\n--\ndrivers/net/phy/dap8211r.c-114-out:\ndrivers/net/phy/dap8211r.c:115:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/dap8211r.c-116-\treturn ret;\n--\ndrivers/net/phy/fixed_phy.c=193=EXPORT_SYMBOL_GPL(fixed_phy_unregister);\ndrivers/net/phy/fixed_phy.c-194-\ndrivers/net/phy/fixed_phy.c:195:static int __init fixed_mdio_bus_init(void)\ndrivers/net/phy/fixed_phy.c-196-{\n--\ndrivers/net/phy/fixed_phy.c-218-}\ndrivers/net/phy/fixed_phy.c:219:module_init(fixed_mdio_bus_init);\ndrivers/net/phy/fixed_phy.c-220-\ndrivers/net/phy/fixed_phy.c:221:static void __exit fixed_mdio_bus_exit(void)\ndrivers/net/phy/fixed_phy.c-222-{\n--\ndrivers/net/phy/fixed_phy.c-225-}\ndrivers/net/phy/fixed_phy.c:226:module_exit(fixed_mdio_bus_exit);\ndrivers/net/phy/fixed_phy.c-227-\n--\ndrivers/net/phy/mdio_bus.c=59=EXPORT_SYMBOL(mdiobus_is_registered_device);\ndrivers/net/phy/mdio_bus.c-60-\ndrivers/net/phy/mdio_bus.c:61:static void mdiobus_stats_acct(struct mdio_bus_stats stats, bool op, int ret)\ndrivers/net/phy/mdio_bus.c-62-{\n--\ndrivers/net/phy/mdio_bus_provider.c=40=static void mdiobus_release(struct device d)\n--\ndrivers/net/phy/mdio_bus_provider.c-55-\ndrivers/net/phy/mdio_bus_provider.c:56:struct mdio_bus_stat_attr {\ndrivers/net/phy/mdio_bus_provider.c-57-\tstruct device_attribute attr;\n--\ndrivers/net/phy/mdio_bus_provider.c-61-\ndrivers/net/phy/mdio_bus_provider.c:62:static struct mdio_bus_stat_attr to_sattr(struct device_attribute attr)\ndrivers/net/phy/mdio_bus_provider.c-63-{\ndrivers/net/phy/mdio_bus_provider.c:64:\treturn container_of(attr, struct mdio_bus_stat_attr, attr);\ndrivers/net/phy/mdio_bus_provider.c-65-}\ndrivers/net/phy/mdio_bus_provider.c-66-\ndrivers/net/phy/mdio_bus_provider.c:67:static u64 mdio_bus_get_stat(struct mdio_bus_stats s, unsigned int offset)\ndrivers/net/phy/mdio_bus_provider.c-68-{\n--\ndrivers/net/phy/mdio_bus_provider.c-80-\ndrivers/net/phy/mdio_bus_provider.c:81:static ssize_t mdio_bus_stat_field_show(struct device dev,\ndrivers/net/phy/mdio_bus_provider.c-82-\t\t\t\t\tstruct device_attribute attr,\n--\ndrivers/net/phy/mdio_bus_provider.c-84-{\ndrivers/net/phy/mdio_bus_provider.c:85:\tstruct mdio_bus_stat_attr sattr = to_sattr(attr);\ndrivers/net/phy/mdio_bus_provider.c-86-\tstruct mii_bus bus = to_mii_bus(dev);\n--\ndrivers/net/phy/mdio_bus_provider.c-91-\t\tfor (int i = 0; i \u003c PHY_MAX_ADDR; i++)\ndrivers/net/phy/mdio_bus_provider.c:92:\t\t\tval += mdio_bus_get_stat(\u0026bus-\u003estats[i],\ndrivers/net/phy/mdio_bus_provider.c-93-\t\t\t\t\t\t sattr-\u003efield_offset);\ndrivers/net/phy/mdio_bus_provider.c-94-\t} else {\ndrivers/net/phy/mdio_bus_provider.c:95:\t\tval = mdio_bus_get_stat(\u0026bus-\u003estats[sattr-\u003eaddress],\ndrivers/net/phy/mdio_bus_provider.c-96-\t\t\t\t\tsattr-\u003efield_offset);\n--\ndrivers/net/phy/mdio_bus_provider.c-101-\ndrivers/net/phy/mdio_bus_provider.c:102:static ssize_t mdio_bus_device_stat_field_show(struct device dev,\ndrivers/net/phy/mdio_bus_provider.c-103-\t\t\t\t\t struct device_attribute attr,\n--\ndrivers/net/phy/mdio_bus_provider.c-105-{\ndrivers/net/phy/mdio_bus_provider.c:106:\tstruct mdio_bus_stat_attr sattr = to_sattr(attr);\ndrivers/net/phy/mdio_bus_provider.c-107-\tstruct mdio_device mdiodev = to_mdio_device(dev);\n--\ndrivers/net/phy/mdio_bus_provider.c-111-\ndrivers/net/phy/mdio_bus_provider.c:112:\tval = mdio_bus_get_stat(\u0026bus-\u003estats[addr], sattr-\u003efield_offset);\ndrivers/net/phy/mdio_bus_provider.c-113-\n--\ndrivers/net/phy/mdio_bus_provider.c-117-#define MDIO_BUS_STATS_ATTR(field)\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:118:static const struct mdio_bus_stat_attr dev_attr_mdio_bus_##field = {\t\\\ndrivers/net/phy/mdio_bus_provider.c:119:\t.attr = __ATTR(field, 0444, mdio_bus_stat_field_show, NULL),\t\\\ndrivers/net/phy/mdio_bus_provider.c-120-\t.address = -1,\t\t\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:121:\t.field_offset = offsetof(struct mdio_bus_stats, field),\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-122-};\t\t\t\t\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:123:static const struct mdio_bus_stat_attr dev_attr_mdio_bus_device_##field = { \\\ndrivers/net/phy/mdio_bus_provider.c:124:\t.attr = __ATTR(field, 0444, mdio_bus_device_stat_field_show, NULL), \\\ndrivers/net/phy/mdio_bus_provider.c:125:\t.field_offset = offsetof(struct mdio_bus_stats, field),\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-126-}\n--\ndrivers/net/phy/mdio_bus_provider.c=131=MDIO_BUS_STATS_ATTR(reads);\n--\ndrivers/net/phy/mdio_bus_provider.c-133-#define MDIO_BUS_STATS_ADDR_ATTR_DECL(field, addr, file)\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:134:static const struct mdio_bus_stat_attr\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:135:dev_attr_mdio_bus_addr_##field##_##addr = {\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-136-\t.attr = { .attr = { .name = file, .mode = 0444 },\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:137:\t\t .show = mdio_bus_stat_field_show,\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-138-\t},\t\t\t\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-139-\t.address = addr,\t\t\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:140:\t.field_offset = offsetof(struct mdio_bus_stats, field),\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-141-}\n--\ndrivers/net/phy/mdio_bus_provider.c=184=MDIO_BUS_STATS_ADDR_ATTR_GROUP_DECL(31);\n--\ndrivers/net/phy/mdio_bus_provider.c-186-#define MDIO_BUS_STATS_ADDR_ATTR_GROUP(addr)\t\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:187:\t\u0026(dev_attr_mdio_bus_addr_transfers_##addr).attr.attr,\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:188:\t\u0026(dev_attr_mdio_bus_addr_errors_##addr).attr.attr,\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:189:\t\u0026(dev_attr_mdio_bus_addr_writes_##addr).attr.attr,\t\t\\\ndrivers/net/phy/mdio_bus_provider.c:190:\t\u0026(dev_attr_mdio_bus_addr_reads_##addr).attr.attr\t\t\t\\\ndrivers/net/phy/mdio_bus_provider.c-191-\ndrivers/net/phy/mdio_bus_provider.c:192:static const struct attribute const mdio_bus_statistics_attrs[] = {\ndrivers/net/phy/mdio_bus_provider.c:193:\t\u0026dev_attr_mdio_bus_transfers.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:194:\t\u0026dev_attr_mdio_bus_errors.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:195:\t\u0026dev_attr_mdio_bus_writes.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:196:\t\u0026dev_attr_mdio_bus_reads.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c-197-\tMDIO_BUS_STATS_ADDR_ATTR_GROUP(0),\n--\ndrivers/net/phy/mdio_bus_provider.c-231-\ndrivers/net/phy/mdio_bus_provider.c:232:static const struct attribute_group mdio_bus_statistics_group = {\ndrivers/net/phy/mdio_bus_provider.c-233-\t.name\t\t= \"statistics\",\ndrivers/net/phy/mdio_bus_provider.c:234:\t.attrs_const\t= mdio_bus_statistics_attrs,\ndrivers/net/phy/mdio_bus_provider.c-235-};\ndrivers/net/phy/mdio_bus_provider.c:236:__ATTRIBUTE_GROUPS(mdio_bus_statistics);\ndrivers/net/phy/mdio_bus_provider.c-237-\ndrivers/net/phy/mdio_bus_provider.c:238:const struct class mdio_bus_class = {\ndrivers/net/phy/mdio_bus_provider.c:239:\t.name\t\t= \"mdio_bus\",\ndrivers/net/phy/mdio_bus_provider.c-240-\t.dev_release\t= mdiobus_release,\ndrivers/net/phy/mdio_bus_provider.c:241:\t.dev_groups\t= mdio_bus_statistics_groups,\ndrivers/net/phy/mdio_bus_provider.c-242-};\n--\ndrivers/net/phy/mdio_bus_provider.c-244-/*\ndrivers/net/phy/mdio_bus_provider.c:245: mdio_bus_match - determine if given MDIO driver supports the given\ndrivers/net/phy/mdio_bus_provider.c-246- \t\t MDIO device\n--\ndrivers/net/phy/mdio_bus_provider.c-254- /\ndrivers/net/phy/mdio_bus_provider.c:255:static int mdio_bus_match(struct device dev, const struct device_driver drv)\ndrivers/net/phy/mdio_bus_provider.c-256-{\n--\ndrivers/net/phy/mdio_bus_provider.c=274=static int mdio_uevent(const struct device dev, struct kobj_uevent_env env)\n--\ndrivers/net/phy/mdio_bus_provider.c-285-\ndrivers/net/phy/mdio_bus_provider.c:286:static const struct attribute const mdio_bus_device_statistics_attrs[] = {\ndrivers/net/phy/mdio_bus_provider.c:287:\t\u0026dev_attr_mdio_bus_device_transfers.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:288:\t\u0026dev_attr_mdio_bus_device_errors.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:289:\t\u0026dev_attr_mdio_bus_device_writes.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c:290:\t\u0026dev_attr_mdio_bus_device_reads.attr.attr,\ndrivers/net/phy/mdio_bus_provider.c-291-\tNULL,\n--\ndrivers/net/phy/mdio_bus_provider.c-293-\ndrivers/net/phy/mdio_bus_provider.c:294:static const struct attribute_group mdio_bus_device_statistics_group = {\ndrivers/net/phy/mdio_bus_provider.c-295-\t.name\t\t= \"statistics\",\ndrivers/net/phy/mdio_bus_provider.c:296:\t.attrs_const\t= mdio_bus_device_statistics_attrs,\ndrivers/net/phy/mdio_bus_provider.c-297-};\ndrivers/net/phy/mdio_bus_provider.c:298:__ATTRIBUTE_GROUPS(mdio_bus_device_statistics);\ndrivers/net/phy/mdio_bus_provider.c-299-\ndrivers/net/phy/mdio_bus_provider.c:300:const struct bus_type mdio_bus_type = {\ndrivers/net/phy/mdio_bus_provider.c:301:\t.name\t\t= \"mdio_bus\",\ndrivers/net/phy/mdio_bus_provider.c:302:\t.dev_groups\t= mdio_bus_device_statistics_groups,\ndrivers/net/phy/mdio_bus_provider.c:303:\t.match\t\t= mdio_bus_match,\ndrivers/net/phy/mdio_bus_provider.c-304-\t.uevent\t\t= mdio_uevent,\n--\ndrivers/net/phy/mdio_bus_provider.c=553=int __mdiobus_register(struct mii_bus bus, struct module owner)\n--\ndrivers/net/phy/mdio_bus_provider.c-580-\tbus-\u003edev.parent = bus-\u003eparent;\ndrivers/net/phy/mdio_bus_provider.c:581:\tbus-\u003edev.class = \u0026mdio_bus_class;\ndrivers/net/phy/mdio_bus_provider.c-582-\tbus-\u003edev.groups = NULL;\n--\ndrivers/net/phy/mdio_bus_provider.c=727=struct mii_bus mdio_find_bus(const char mdio_name)\n--\ndrivers/net/phy/mdio_bus_provider.c-730-\ndrivers/net/phy/mdio_bus_provider.c:731:\td = class_find_device_by_name(\u0026mdio_bus_class, mdio_name);\ndrivers/net/phy/mdio_bus_provider.c-732-\treturn d ? to_mii_bus(d) : NULL;\n--\ndrivers/net/phy/mdio_bus_provider.c=734=EXPORT_SYMBOL(mdio_find_bus);\n--\ndrivers/net/phy/mdio_bus_provider.c-738- of_mdio_find_bus - Given an mii_bus node, find the mii_bus.\ndrivers/net/phy/mdio_bus_provider.c:739: * @mdio_bus_np: Pointer to the mii_bus.\ndrivers/net/phy/mdio_bus_provider.c-740- \n--\ndrivers/net/phy/mdio_bus_provider.c-749- /\ndrivers/net/phy/mdio_bus_provider.c:750:struct mii_bus of_mdio_find_bus(struct device_node mdio_bus_np)\ndrivers/net/phy/mdio_bus_provider.c-751-{\n--\ndrivers/net/phy/mdio_bus_provider.c-753-\ndrivers/net/phy/mdio_bus_provider.c:754:\tif (!mdio_bus_np)\ndrivers/net/phy/mdio_bus_provider.c-755-\t\treturn NULL;\ndrivers/net/phy/mdio_bus_provider.c-756-\ndrivers/net/phy/mdio_bus_provider.c:757:\td = class_find_device_by_of_node(\u0026mdio_bus_class, mdio_bus_np);\ndrivers/net/phy/mdio_bus_provider.c-758-\treturn d ? to_mii_bus(d) : NULL;\n--\ndrivers/net/phy/mdio_device.c=119=struct mdio_device mdio_device_create(struct mii_bus bus, int addr)\n--\ndrivers/net/phy/mdio_device.c-129-\tmdiodev-\u003edev.parent = \u0026bus-\u003edev;\ndrivers/net/phy/mdio_device.c:130:\tmdiodev-\u003edev.bus = \u0026mdio_bus_type;\ndrivers/net/phy/mdio_device.c-131-\tmdiodev-\u003edevice_free = mdio_device_free;\n--\ndrivers/net/phy/mdio_device.c=285=int mdio_driver_register(struct mdio_driver drv)\n--\ndrivers/net/phy/mdio_device.c-291-\ndrivers/net/phy/mdio_device.c:292:\tmdiodrv-\u003edriver.bus = \u0026mdio_bus_type;\ndrivers/net/phy/mdio_device.c-293-\tmdiodrv-\u003edriver.probe = mdio_probe;\n--\ndrivers/net/phy/micrel.c=3146=static int lanphy_read_page_reg(struct phy_device phydev, int page, u32 addr)\n--\ndrivers/net/phy/micrel.c-3149-\ndrivers/net/phy/micrel.c:3150:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3151-\t__phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page);\n--\ndrivers/net/phy/micrel.c-3155-\tdata = __phy_read(phydev, LAN_EXT_PAGE_ACCESS_ADDRESS_DATA);\ndrivers/net/phy/micrel.c:3156:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3157-\n--\ndrivers/net/phy/micrel.c=3161=static int lanphy_write_page_reg(struct phy_device phydev, int page, u16 addr,\n--\ndrivers/net/phy/micrel.c-3163-{\ndrivers/net/phy/micrel.c:3164:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3165-\t__phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page);\n--\ndrivers/net/phy/micrel.c-3173-\t\t\t val);\ndrivers/net/phy/micrel.c:3174:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3175-\treturn val;\n--\ndrivers/net/phy/micrel.c=3178=static int lanphy_modify_page_reg(struct phy_device phydev, int page, u16 addr,\n--\ndrivers/net/phy/micrel.c-3182-\ndrivers/net/phy/micrel.c:3183:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3184-\t__phy_write(phydev, LAN_EXT_PAGE_ACCESS_CONTROL, page);\n--\ndrivers/net/phy/micrel.c-3189-\t\t\t\t mask, set);\ndrivers/net/phy/micrel.c:3190:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/micrel.c-3191-\n--\ndrivers/net/phy/motorcomm.c=424=static int ytphy_read_ext_with_lock(struct phy_device phydev, u16 regnum)\n--\ndrivers/net/phy/motorcomm.c-427-\ndrivers/net/phy/motorcomm.c:428:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-429-\tret = ytphy_read_ext(phydev, regnum);\ndrivers/net/phy/motorcomm.c:430:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-431-\n--\ndrivers/net/phy/motorcomm.c=464=static int ytphy_write_ext_with_lock(struct phy_device phydev, u16 regnum,\n--\ndrivers/net/phy/motorcomm.c-468-\ndrivers/net/phy/motorcomm.c:469:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-470-\tret = ytphy_write_ext(phydev, regnum, val);\ndrivers/net/phy/motorcomm.c:471:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-472-\n--\ndrivers/net/phy/motorcomm.c=513=static int ytphy_modify_ext_with_lock(struct phy_device phydev, u16 regnum,\n--\ndrivers/net/phy/motorcomm.c-517-\ndrivers/net/phy/motorcomm.c:518:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-519-\tret = ytphy_modify_ext(phydev, regnum, mask, set);\ndrivers/net/phy/motorcomm.c:520:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-521-\n--\ndrivers/net/phy/motorcomm.c=940=static int ytphy_rgmii_clk_delay_config_with_lock(struct phy_device phydev)\n--\ndrivers/net/phy/motorcomm.c-943-\ndrivers/net/phy/motorcomm.c:944:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-945-\tret = ytphy_rgmii_clk_delay_config(phydev);\ndrivers/net/phy/motorcomm.c:946:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-947-\n--\ndrivers/net/phy/motorcomm.c=1830=static int yt8531_config_init(struct phy_device phydev)\n--\ndrivers/net/phy/motorcomm.c-1856-\ndrivers/net/phy/motorcomm.c:1857:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-1858-\tret = yt8531_set_ds(phydev);\ndrivers/net/phy/motorcomm.c:1859:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/motorcomm.c-1860-\tif (ret \u003c 0)\n--\ndrivers/net/phy/mscc/mscc_main.c=1538=static void vsc8584_get_base_addr(struct phy_device phydev)\n--\ndrivers/net/phy/mscc/mscc_main.c-1542-\ndrivers/net/phy/mscc/mscc_main.c:1543:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-1544-\t__phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);\n--\ndrivers/net/phy/mscc/mscc_main.c-1551-\t__phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);\ndrivers/net/phy/mscc/mscc_main.c:1552:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-1553-\n--\ndrivers/net/phy/mscc/mscc_main.c=1723=static int vsc8584_config_init(struct phy_device phydev)\n--\ndrivers/net/phy/mscc/mscc_main.c-1730-\ndrivers/net/phy/mscc/mscc_main.c:1731:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-1732-\n--\ndrivers/net/phy/mscc/mscc_main.c-1779-\ndrivers/net/phy/mscc/mscc_main.c:1780:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-1781-\n--\ndrivers/net/phy/mscc/mscc_main.c-1816-err:\ndrivers/net/phy/mscc/mscc_main.c:1817:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-1818-\treturn ret;\n--\ndrivers/net/phy/mscc/mscc_main.c=2085=static int vsc8514_config_init(struct phy_device phydev)\n--\ndrivers/net/phy/mscc/mscc_main.c-2091-\ndrivers/net/phy/mscc/mscc_main.c:2092:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-2093-\n--\ndrivers/net/phy/mscc/mscc_main.c-2114-\ndrivers/net/phy/mscc/mscc_main.c:2115:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-2116-\n--\ndrivers/net/phy/mscc/mscc_main.c-2136-err:\ndrivers/net/phy/mscc/mscc_main.c:2137:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_main.c-2138-\treturn ret;\n--\ndrivers/net/phy/mscc/mscc_ptp.c=63=static u32 vsc85xx_ts_read_csr(struct phy_device phydev, enum ts_blk blk,\n--\ndrivers/net/phy/mscc/mscc_ptp.c-83-\ndrivers/net/phy/mscc/mscc_ptp.c:84:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-85-\n--\ndrivers/net/phy/mscc/mscc_ptp.c-101-\ndrivers/net/phy/mscc/mscc_ptp.c:102:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-103-\n--\ndrivers/net/phy/mscc/mscc_ptp.c=107=static void vsc85xx_ts_write_csr(struct phy_device phydev, enum ts_blk blk,\n--\ndrivers/net/phy/mscc/mscc_ptp.c-133-\ndrivers/net/phy/mscc/mscc_ptp.c:134:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-135-\n--\ndrivers/net/phy/mscc/mscc_ptp.c-157-\ndrivers/net/phy/mscc/mscc_ptp.c:158:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-159-}\n--\ndrivers/net/phy/mscc/mscc_ptp.c=1307=static int __vsc8584_init_ptp(struct phy_device phydev)\n--\ndrivers/net/phy/mscc/mscc_ptp.c-1313-\tif (!vsc8584_is_1588_input_clk_configured(phydev)) {\ndrivers/net/phy/mscc/mscc_ptp.c:1314:\t\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-1315-\n--\ndrivers/net/phy/mscc/mscc_ptp.c-1325-\ndrivers/net/phy/mscc/mscc_ptp.c:1326:\t\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mscc/mscc_ptp.c-1327-\n--\ndrivers/net/phy/mxl-86110.c=276=static int mxl86110_write_extended_reg(struct phy_device phydev,\n--\ndrivers/net/phy/mxl-86110.c-280-\ndrivers/net/phy/mxl-86110.c:281:\tphy_lock_mdio_bus(phydev);\ndrivers/net/phy/mxl-86110.c-282-\tret = __mxl86110_write_extended_reg(phydev, regnum, val);\ndrivers/net/phy/mxl-86110.c:283:\tphy_unlock_mdio_bus(phydev);\ndrivers/net/phy/mxl-86110.c-284-\n--\ndrivers/net/phy/mxl-86110.c=299=static int mxl86110_read_extended_reg(struct phy_device *phydev, u16 regnum)\n--\ndrivers/net/phy/mxl-86110.c-302-\n\n" }
11/2	2026/09/12 02:47	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 27702 output: 30 thoughts: 318 Thoughts: My Thought Process on QCA808x PHY Driver Instantiation Okay, let's dive into this. The file I'm looking at is `drivers/net/phy/qcom/qca808x.c`. My immediate thought is, "What exactly is `qca808x`?" Right, it's a PHY driver. Specifically, it's a driver for the Qualcomm QCA8081 Ethernet PHY chips. Got it. Now, how does this driver, like any PHY driver, actually get instantiated and probed within a Linux system? I know it hinges on the MDIO bus. My mind jumps to the process: the MDIO bus is scanned. That happens either at boot-up, or when a network device driver, like the `stmmac` or `fec` drivers, register an MDIO bus. Then the system scans those 32 addresses for those `MII_PHYSID1` and `MII_PHYSID2` identifiers. Alternatively, the PHY can be described directly via the Device Tree and registered with `of_mdiobus_register`. So, the key must be in the matching process. I'll need to check `mdio_bus_match`. Let's look at `drivers/net/phy/mdio_bus_provider.c`. Here's the relevant code: ```c static int mdio_bus_match(struct device dev, const struct device_driver drv) { struct mdio_device *mdio = to_mdio_device(dev); if (of_driver_match_device(dev, drv)) return 1; if (mdio->bus_match) return mdio->bus_match(dev, drv); return 0; } ``` The matching seems to depend on Device Tree matching, or the `mdio->bus_match` function pointer. This structure, when talking about the `phy_device`, translates into a `phy_bus_match` function. I should probably grep for `phy_bus_match` to see how it's used.
12/2	2026/09/12 02:48	tool	grepper	0m Args: { "Expression": "phy_bus_match", "PathPrefix": "drivers/net/phy" } Results: { "Output": "drivers/net/phy/phy_device.c=544=EXPORT_SYMBOL_GPL(genphy_match_phy_device);\ndrivers/net/phy/phy_device.c-545-\ndrivers/net/phy/phy_device.c:546:static int phy_bus_match(struct device dev, const struct device_driver drv)\ndrivers/net/phy/phy_device.c-547-{\n--\ndrivers/net/phy/phy_device.c=748=struct phy_device phy_device_create(struct mii_bus bus, int addr, u32 phy_id,\n--\ndrivers/net/phy/phy_device.c-765-\tmdiodev-\u003ebus = bus;\ndrivers/net/phy/phy_device.c:766:\tmdiodev-\u003ebus_match = phy_bus_match;\ndrivers/net/phy/phy_device.c-767-\tmdiodev-\u003eaddr = addr;\n" }
13/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 28772 output: 39 thoughts: 11 Thoughts: Okay, here's my attempt at summarizing the thought process, as if it were my own, assuming I'm an expert in this field. Deep Dive: Checking `phy_bus_match` Alright, time to get to the core of this. Let's start by digging into `phy_bus_match`. I need to understand exactly how this matching is supposed to function and the contexts that might cause it to fail. The typical failure modes in this area are usually related to incorrect address space assignments, resource conflicts or, less commonly, driver configuration errors. I'll want to review the exact logic of the function. Is it relying on something that might be outdated or incorrect? Are there specific hardware flags or capabilities that the matching is keyed on? Is the matching algorithm too strict, preventing legitimate devices from being identified, or too loose, allowing potentially incompatible devices to be incorrectly associated? I'll need to know what kind of device it's supposed to be matching. Is there any existing documentation or associated test cases I can rely on? I need to quickly identify any critical dependencies and make sure that they are accounted for. Also, any recent changes or commits in the code base that involve this function will be of immediate interest. This has probably been the cause of any reported failures. Finally, I'll keep an open mind for any edge cases that might be the cause for a regression in functionality.
14/2	2026/09/12 02:48	tool	read-file	0m Args: { "File": "drivers/net/phy/phy_device.c", "FirstLine": 546, "LineCount": 40 } Results: { "Contents": " 546:\tstatic int phy_bus_match(struct device dev, const struct device_driver drv)\n 547:\t{\n 548:\t\tstruct phy_device phydev = to_phy_device(dev);\n 549:\t\tconst struct phy_driver phydrv = to_phy_driver(drv);\n 550:\t\n 551:\t\tif (!(phydrv-\u003emdiodrv.flags \u0026 MDIO_DEVICE_IS_PHY))\n 552:\t\t\treturn 0;\n 553:\t\n 554:\t\tif (phydrv-\u003ematch_phy_device)\n 555:\t\t\treturn phydrv-\u003ematch_phy_device(phydev, phydrv);\n 556:\t\n 557:\t\treturn genphy_match_phy_device(phydev, phydrv);\n 558:\t}\n 559:\t\n 560:\tstatic ssize_t\n 561:\tphy_id_show(struct device dev, struct device_attribute attr, char buf)\n 562:\t{\n 563:\t\tstruct phy_device phydev = to_phy_device(dev);\n 564:\t\n 565:\t\treturn sysfs_emit(buf, \"0x%.8lx\\n\", (unsigned long)phydev-\u003ephy_id);\n 566:\t}\n 567:\tstatic DEVICE_ATTR_RO(phy_id);\n 568:\t\n 569:\tstatic ssize_t\n 570:\tphy_interface_show(struct device dev, struct device_attribute attr, char buf)\n 571:\t{\n 572:\t\tstruct phy_device phydev = to_phy_device(dev);\n 573:\t\tconst char mode = NULL;\n 574:\t\n 575:\t\tif (phydev-\u003eis_internal)\n 576:\t\t\tmode = \"internal\";\n 577:\t\telse\n 578:\t\t\tmode = phy_modes(phydev-\u003einterface);\n 579:\t\n 580:\t\treturn sysfs_emit(buf, \"%s\\n\", mode);\n 581:\t}\n 582:\tstatic DEVICE_ATTR_RO(phy_interface);\n 583:\t\n 584:\tstatic ssize_t\n 585:\tphy_has_fixups_show(struct device dev, struct device_attribute *attr,\n" }
15/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 29748 output: 24 thoughts: 43 Thoughts: MDIO Bus Emulation and the QCA8081 PHY Okay, so I need to figure out if there's any software or virtual environment out there that can emulate an MDIO bus, specifically with a QCA8081 PHY. My usual search terms haven't turned up anything definitive yet, but I need to make sure I haven't missed a key piece of terminology or a subtle project. The next logical step is to see how `QCA8081_PHY_ID` is being used in code or configurations. That identifier should give me a good handle on its integration points and dependencies. Once I've got that, I should get a clear picture of how it all works!
16/2	2026/09/12 02:48	tool	grepper	0m Args: { "Expression": "QCA8081_PHY_ID" } Results: { "Output": "drivers/net/phy/qcom/qca808x.c-87-\ndrivers/net/phy/qcom/qca808x.c:88:#define QCA8081_PHY_ID\t\t\t\t0x004dd101\ndrivers/net/phy/qcom/qca808x.c-89-\n--\ndrivers/net/phy/qcom/qca808x.c=649=static struct phy_driver qca808x_driver[] = {\n--\ndrivers/net/phy/qcom/qca808x.c-651-\t/* Qualcomm QCA8081 */\ndrivers/net/phy/qcom/qca808x.c:652:\tPHY_ID_MATCH_EXACT(QCA8081_PHY_ID),\ndrivers/net/phy/qcom/qca808x.c-653-\t.name\t\t\t= \"Qualcomm QCA8081\",\n--\ndrivers/net/phy/qcom/qca808x.c=684=static const struct mdio_device_id __maybe_unused qca808x_tbl[] = {\ndrivers/net/phy/qcom/qca808x.c:685:\t{ PHY_ID_MATCH_EXACT(QCA8081_PHY_ID) },\ndrivers/net/phy/qcom/qca808x.c-686-\t{ }\n" }
17/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 30348 output: 19 thoughts: 133 Thoughts: Investigating Potential Attack Surface for the QCA8081 PHY Driver Okay, so the `QCA8081_PHY_ID` seems to be solely defined within the `drivers/net/phy/qcom/qca808x.c` file. My immediate thought is, can syzkaller or a user running within a virtual machine like QEMU or GCE actually reach this driver? Is there any way for them to interact with it, to instantiate it, or trigger its execution? That's the critical question. To figure this out, I need to understand the potential attack surface. My plan is to investigate whether userspace has the capability to create MDIO or PHY devices. I'll need to check if there are any sysfs interfaces, ioctls, netlink interactions, or configfs configurations that would allow this. Basically, I want to trace a path from userspace to the registration and instantiation of this specific PHY driver. Specifically, I'll need to examine how `phy_device_create`, `phy_device_register`, and `mdiobus_register` are used across the entire kernel. This should help me determine what mechanisms exist for interacting with these PHY-related objects and whether any of those mechanisms could possibly be leveraged to trigger the `qca808x` driver's code paths.
18/2	2026/09/12 02:48	tool	grepper	0m Args: { "Expression": "phy_device_register" } Results: { "Output": "drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c=931=static int xgbe_phy_find_phy_device(struct xgbe_prv_data pdata)\n--\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-975-\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:976:\tret = phy_device_register(phydev);\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-977-\tif (ret) {\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:978:\t\tnetdev_err(pdata-\u003enetdev, \"phy_device_register failed\\n\");\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-979-\t\tphy_device_free(phydev);\n--\ndrivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c=716=hns_mac_register_phydev(struct mii_bus mdio, struct hns_mac_cb mac_cb,\n--\ndrivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c-744-\t /\ndrivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c:745:\trc = phy_device_register(phy);\ndrivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c-746-\tif (rc) {\n--\ndrivers/net/ethernet/socionext/netsec.c=1929=static int netsec_register_mdio(struct netsec_priv priv, u32 phy_addr)\n--\ndrivers/net/ethernet/socionext/netsec.c-1983-\ndrivers/net/ethernet/socionext/netsec.c:1984:\t\tret = phy_device_register(priv-\u003ephydev);\ndrivers/net/ethernet/socionext/netsec.c-1985-\t\tif (ret) {\n--\ndrivers/net/ethernet/socionext/netsec.c-1988-\t\t\tdev_err(priv-\u003edev,\ndrivers/net/ethernet/socionext/netsec.c:1989:\t\t\t\t\"phy_device_register err(%d)\\n\", ret);\ndrivers/net/ethernet/socionext/netsec.c-1990-\t\t}\n--\ndrivers/net/mdio/fwnode_mdio.c=42=fwnode_find_mii_timestamper(struct fwnode_handle fwnode)\n--\ndrivers/net/mdio/fwnode_mdio.c-69-\ndrivers/net/mdio/fwnode_mdio.c:70:int fwnode_mdiobus_phy_device_register(struct mii_bus mdio,\ndrivers/net/mdio/fwnode_mdio.c-71-\t\t\t\t struct phy_device phy,\n--\ndrivers/net/mdio/fwnode_mdio.c-103-\t /\ndrivers/net/mdio/fwnode_mdio.c:104:\trc = phy_device_register(phy);\ndrivers/net/mdio/fwnode_mdio.c-105-\tif (rc) {\n--\ndrivers/net/mdio/fwnode_mdio.c-114-}\ndrivers/net/mdio/fwnode_mdio.c:115:EXPORT_SYMBOL(fwnode_mdiobus_phy_device_register);\ndrivers/net/mdio/fwnode_mdio.c-116-\ndrivers/net/mdio/fwnode_mdio.c=117=int fwnode_mdiobus_register_phy(struct mii_bus bus,\n--\ndrivers/net/mdio/fwnode_mdio.c-149-\t\t/* All data is now stored in the phy struct, so register it /\ndrivers/net/mdio/fwnode_mdio.c:150:\t\trc = phy_device_register(phy);\ndrivers/net/mdio/fwnode_mdio.c-151-\t\tif (rc) {\n--\ndrivers/net/mdio/fwnode_mdio.c-156-\t} else if (is_of_node(child)) {\ndrivers/net/mdio/fwnode_mdio.c:157:\t\trc = fwnode_mdiobus_phy_device_register(bus, phy, child, addr);\ndrivers/net/mdio/fwnode_mdio.c-158-\t\tif (rc)\n--\ndrivers/net/mdio/mdio-xgene.c=263=struct phy_device xgene_enet_phy_register(struct mii_bus bus, int phy_addr)\n--\ndrivers/net/mdio/mdio-xgene.c-270-\ndrivers/net/mdio/mdio-xgene.c:271:\tif (phy_device_register(phy_dev))\ndrivers/net/mdio/mdio-xgene.c-272-\t\tphy_device_free(phy_dev);\n--\ndrivers/net/mdio/of_mdio.c=32=static int of_get_phy_id(struct device_node device, u32 phy_id)\n--\ndrivers/net/mdio/of_mdio.c-36-\ndrivers/net/mdio/of_mdio.c:37:int of_mdiobus_phy_device_register(struct mii_bus mdio, struct phy_device phy,\ndrivers/net/mdio/of_mdio.c-38-\t\t\t\t struct device_node child, u32 addr)\ndrivers/net/mdio/of_mdio.c-39-{\ndrivers/net/mdio/of_mdio.c:40:\treturn fwnode_mdiobus_phy_device_register(mdio, phy,\ndrivers/net/mdio/of_mdio.c-41-\t\t\t\t\t\t of_fwnode_handle(child),\n--\ndrivers/net/mdio/of_mdio.c-43-}\ndrivers/net/mdio/of_mdio.c:44:EXPORT_SYMBOL(of_mdiobus_phy_device_register);\ndrivers/net/mdio/of_mdio.c-45-\n--\ndrivers/net/phy/fixed_phy.c=131=struct phy_device fixed_phy_register(const struct fixed_phy_status status,\n--\ndrivers/net/phy/fixed_phy.c-162-\ndrivers/net/phy/fixed_phy.c:163:\tret = phy_device_register(phy);\ndrivers/net/phy/fixed_phy.c-164-\tif (ret) {\n--\ndrivers/net/phy/mdio_bus_provider.c=408=static struct phy_device mdiobus_scan(struct mii_bus bus, int addr, bool c45)\n--\ndrivers/net/phy/mdio_bus_provider.c-437-\ndrivers/net/phy/mdio_bus_provider.c:438:\terr = phy_device_register(phydev);\ndrivers/net/phy/mdio_bus_provider.c-439-\tif (err) {\n--\ndrivers/net/phy/nxp-tja11xx.c=551=static void tja1102_p1_register(struct work_struct work)\n--\ndrivers/net/phy/nxp-tja11xx.c-597-\ndrivers/net/phy/nxp-tja11xx.c:598:\t\tret = of_mdiobus_phy_device_register(bus, phy, child, addr);\ndrivers/net/phy/nxp-tja11xx.c-599-\t\tif (ret) {\n--\ndrivers/net/phy/phy_device.c=1103=EXPORT_SYMBOL(get_phy_device);\n--\ndrivers/net/phy/phy_device.c-1105-/\ndrivers/net/phy/phy_device.c:1106: phy_device_register - Register the phy device on the MDIO bus\ndrivers/net/phy/phy_device.c-1107- * @phydev: phy_device structure to be added to the MDIO bus\ndrivers/net/phy/phy_device.c-1108- /\ndrivers/net/phy/phy_device.c:1109:int phy_device_register(struct phy_device phydev)\ndrivers/net/phy/phy_device.c-1110-{\n--\ndrivers/net/phy/phy_device.c-1141-}\ndrivers/net/phy/phy_device.c:1142:EXPORT_SYMBOL(phy_device_register);\ndrivers/net/phy/phy_device.c-1143-\n--\ndrivers/net/phy/phy_device.c-1148- * This doesn't free the phy_device itself, it merely reverses the effects\ndrivers/net/phy/phy_device.c:1149: * of phy_device_register(). Use phy_device_free() to free the device\ndrivers/net/phy/phy_device.c-1150- * after calling this function.\n--\ndrivers/net/phy/sfp.c=2105=static int sfp_sm_probe_phy(struct sfp sfp, int addr, bool is_c45)\n--\ndrivers/net/phy/sfp.c-2120-\ndrivers/net/phy/sfp.c:2121:\terr = phy_device_register(phy);\ndrivers/net/phy/sfp.c-2122-\tif (err) {\ndrivers/net/phy/sfp.c-2123-\t\tphy_device_free(phy);\ndrivers/net/phy/sfp.c:2124:\t\tdev_err(sfp-\u003edev, \"phy_device_register failed: %pe\\n\",\ndrivers/net/phy/sfp.c-2125-\t\t\tERR_PTR(err));\n--\ninclude/linux/fwnode_mdio.h-11-#if IS_ENABLED(CONFIG_FWNODE_MDIO)\ninclude/linux/fwnode_mdio.h:12:int fwnode_mdiobus_phy_device_register(struct mii_bus mdio,\ninclude/linux/fwnode_mdio.h-13-\t\t\t\t struct phy_device phy,\n--\ninclude/linux/fwnode_mdio.h=16=int fwnode_mdiobus_register_phy(struct mii_bus bus,\n--\ninclude/linux/fwnode_mdio.h-19-#else /* CONFIG_FWNODE_MDIO /\ninclude/linux/fwnode_mdio.h:20:int fwnode_mdiobus_phy_device_register(struct mii_bus mdio,\ninclude/linux/fwnode_mdio.h-21-\t\t\t\t struct phy_device phy,\n--\ninclude/linux/of_mdio.h=49=bool of_phy_is_fixed_link(struct device_node np);\ninclude/linux/of_mdio.h:50:int of_mdiobus_phy_device_register(struct mii_bus mdio, struct phy_device phy,\ninclude/linux/of_mdio.h-51-\t\t\t\t struct device_node child, u32 addr);\n--\ninclude/linux/of_mdio.h=140=static inline bool of_phy_is_fixed_link(struct device_node np)\n--\ninclude/linux/of_mdio.h-144-\ninclude/linux/of_mdio.h:145:static inline int of_mdiobus_phy_device_register(struct mii_bus mdio,\ninclude/linux/of_mdio.h-146-\t\t\t\t\t struct phy_device phy,\n--\ninclude/linux/phy.h=2159=struct phy_device get_phy_device(struct mii_bus bus, int addr, bool is_c45);\ninclude/linux/phy.h:2160:int phy_device_register(struct phy_device phy);\ninclude/linux/phy.h-2161-void phy_device_free(struct phy_device phydev);\n" }
19/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 33948 output: 43 thoughts: 970 Thoughts: Analyzing the Fuzzing Worthiness of a QCA8081 Driver Patch Okay, let's break this down. My goal is to determine if a patch affecting the `mdiobus_scan` function, specifically related to the Qualcomm Atheros QCA8081 PHY, is worth fuzzing. I need to figure out if the changes are reachable code. First, the `mdiobus_scan` function reads PHY IDs (MII_PHYSID1, MII_PHYSID2) to identify connected PHYs. The QCA8081 is a physical PHY, typically found on Qualcomm networking SoCs like the IPQ5018, IPQ8074, or router boards with that specific chip, wired via MDIO and SGMII/2500BaseX. Now the question is, can I reach this PHY in a standard QEMU environment? No, QEMU doesn't emulate the QCA8081. It emulates standard NICs. And what about USB Ethernet? While some USB adapters use internal PHYs, the QCA8081 is not one of them. USB gadget also doesn't provide emulation of MDIO PHYs. Could I reach the QCA8081 via a mock MDIO bus or netdev? I need to investigate if there's a virtual MDIO bus or dummy PHY and if the PHY driver is considered hardware-specific. Let's refer to the instructions for the fuzzing analysis. I need to check for the negative and positive criteria that determine fuzzing worthiness. The instructions say that it's not worth fuzzing if the code falls into several categories. I need to focus on "Structurally unreachable hardware": "Vendor-specific PCIe switches, SmartNICs, or GPU drivers... requiring physical ASIC/PCIe cards not emulated in standard QEMU." Is QCA8081 "structurally unreachable hardware"? Let's verify what the QCA8081 is. It's a Qualcomm Atheros QCA8081 Ethernet PHY transceiver. I should now check the driver code in `drivers/net/phy/qcom/qca808x.c` to see how it's implemented. Then I can determine if it falls under the "structurally unreachable hardware" category since I know it's a physical chip and I cannot reach it using standard QEMU.
20/2	2026/09/12 02:48	tool	read-file	0m Args: { "File": "drivers/net/phy/qcom/qca808x.c", "FirstLine": 1, "LineCount": 80 } Results: { "Contents": " 1:\t// SPDX-License-Identifier: GPL-2.0+\n 2:\t\n 3:\t#include \u003clinux/phy.h\u003e\n 4:\t#include \u003clinux/module.h\u003e\n 5:\t\n 6:\t#include \"qcom.h\"\n 7:\t\n 8:\t/* ADC threshold /\n 9:\t#define QCA808X_PHY_DEBUG_ADC_THRESHOLD\t\t0x2c80\n 10:\t#define QCA808X_ADC_THRESHOLD_MASK\t\tGENMASK(7, 0)\n 11:\t#define QCA808X_ADC_THRESHOLD_80MV\t\t0\n 12:\t#define QCA808X_ADC_THRESHOLD_100MV\t\t0xf0\n 13:\t#define QCA808X_ADC_THRESHOLD_200MV\t\t0x0f\n 14:\t#define QCA808X_ADC_THRESHOLD_300MV\t\t0xff\n 15:\t\n 16:\t/ CLD control /\n 17:\t#define QCA808X_PHY_MMD3_ADDR_CLD_CTRL7\t\t0x8007\n 18:\t#define QCA808X_8023AZ_AFE_CTRL_MASK\t\tGENMASK(8, 4)\n 19:\t#define QCA808X_8023AZ_AFE_EN\t\t\t0x90\n 20:\t\n 21:\t/ AZ control /\n 22:\t#define QCA808X_PHY_MMD3_AZ_TRAINING_CTRL\t0x8008\n 23:\t#define QCA808X_MMD3_AZ_TRAINING_VAL\t\t0x1c32\n 24:\t\n 25:\t#define QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB\t0x8014\n 26:\t#define QCA808X_MSE_THRESHOLD_20DB_VALUE\t0x529\n 27:\t\n 28:\t#define QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB\t0x800E\n 29:\t#define QCA808X_MSE_THRESHOLD_17DB_VALUE\t0x341\n 30:\t\n 31:\t#define QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB\t0x801E\n 32:\t#define QCA808X_MSE_THRESHOLD_27DB_VALUE\t0x419\n 33:\t\n 34:\t#define QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB\t0x8020\n 35:\t#define QCA808X_MSE_THRESHOLD_28DB_VALUE\t0x341\n 36:\t\n 37:\t#define QCA808X_PHY_MMD7_TOP_OPTION1\t\t0x901c\n 38:\t#define QCA808X_TOP_OPTION1_DATA\t\t0x0\n 39:\t\n 40:\t#define QCA808X_PHY_MMD3_DEBUG_1\t\t0xa100\n 41:\t#define QCA808X_MMD3_DEBUG_1_VALUE\t\t0x9203\n 42:\t#define QCA808X_PHY_MMD3_DEBUG_2\t\t0xa101\n 43:\t#define QCA808X_MMD3_DEBUG_2_VALUE\t\t0x48ad\n 44:\t#define QCA808X_PHY_MMD3_DEBUG_3\t\t0xa103\n 45:\t#define QCA808X_MMD3_DEBUG_3_VALUE\t\t0x1698\n 46:\t#define QCA808X_PHY_MMD3_DEBUG_4\t\t0xa105\n 47:\t#define QCA808X_MMD3_DEBUG_4_VALUE\t\t0x8001\n 48:\t#define QCA808X_PHY_MMD3_DEBUG_5\t\t0xa106\n 49:\t#define QCA808X_MMD3_DEBUG_5_VALUE\t\t0x1111\n 50:\t#define QCA808X_PHY_MMD3_DEBUG_6\t\t0xa011\n 51:\t#define QCA808X_MMD3_DEBUG_6_VALUE\t\t0x5f85\n 52:\t\n 53:\t/ master/slave seed config /\n 54:\t#define QCA808X_PHY_DEBUG_LOCAL_SEED\t\t9\n 55:\t#define QCA808X_MASTER_SLAVE_SEED_ENABLE\tBIT(1)\n 56:\t#define QCA808X_MASTER_SLAVE_SEED_CFG\t\tGENMASK(12, 2)\n 57:\t#define QCA808X_MASTER_SLAVE_SEED_RANGE\t\t0x32\n 58:\t\n 59:\t/ Hibernation yields lower power consumpiton in contrast with normal operation mode.\n 60:\t * when the copper cable is unplugged, the PHY enters into hibernation mode in about 10s.\n 61:\t /\n 62:\t#define QCA808X_DBG_AN_TEST\t\t\t0xb\n 63:\t#define QCA808X_HIBERNATION_EN\t\t\tBIT(15)\n 64:\t\n 65:\t#define QCA808X_MMD7_LED2_CTRL\t\t\t0x8074\n 66:\t#define QCA808X_MMD7_LED2_FORCE_CTRL\t\t0x8075\n 67:\t#define QCA808X_MMD7_LED1_CTRL\t\t\t0x8076\n 68:\t#define QCA808X_MMD7_LED1_FORCE_CTRL\t\t0x8077\n 69:\t#define QCA808X_MMD7_LED0_CTRL\t\t\t0x8078\n 70:\t#define QCA808X_MMD7_LED_CTRL(x)\t\t(0x8078 - ((x) 2))\n 71:\t\n 72:\t#define QCA808X_MMD7_LED0_FORCE_CTRL\t\t0x8079\n 73:\t#define QCA808X_MMD7_LED_FORCE_CTRL(x)\t\t(0x8079 - ((x) * 2))\n 74:\t\n 75:\t#define QCA808X_MMD7_LED_POLARITY_CTRL\t\t0x901a\n 76:\t/* QSDK sets by default 0x46 to this reg that sets BIT 6 for\n 77:\t * LED to active high. It's not clear what BIT 3 and BIT 4 does.\n 78:\t */\n 79:\t#define QCA808X_LED_ACTIVE_HIGH\t\t\tBIT(6)\n 80:\t\n" }
21/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 37318 output: 19 thoughts: 422 Thoughts: My Investigation into the QCA808x PHY Probe Okay, let's break this down. My goal is to understand how the `qca808x` PHY gets initialized. First, the code snippet from line 181 shows the `qca808x_probe` function. It seems pretty straightforward: allocate some private data (`qca808x_priv`), initialize `led_polarity_mode` to -1, and attach the private data to the `phy_device`. Nothing too exciting there. The real question is, what triggers this function to run? That's where things get interesting, the probe mechanism for `phy_driver`. So, `phy_driver_register` gets the ball rolling. This registers the `phy_driver` with the `mdio_bus_type`. Makes sense. Now, for an actual `phy_device` to come into existence and get properly bound, a few things need to happen. First, an MDIO bus has to be registered using `mdiobus_register`. Then, that MDIO bus needs to do its job: scan or enumerate devices. The `mdiobus_scan` function is the key here. It reads MMD/MII registers from the hardware, looking at addresses 0 through 31. If the values in `MII_PHYSID1` and `MII_PHYSID2` match `QCA8081_PHY_ID` (0x004dd101), the system allocates a `phy_device` and registers it. Essentially, it finds it via the hardware. Alternatively, the device tree could play a role. Device Tree nodes can describe the MDIO bus and PHY child nodes. A `compatible` string like "ethernet-phy-id004d.d101" would flag the PHY. The MDIO bus controller parses the device tree, and that's when the PHY would be probed. Now, a crucial question, and this is where I start to get really curious, is whether there's any software MDIO driver or virtual device in environments like QEMU or Google Compute Engine that actually creates a QCA8081 PHY. I can't imagine this existing without a specific driver, so I need to check all occurrences of "mdiobus" to see if there's some kind of virtual or emulated netdev or MDIO bus set up. That's the key to understanding if there's any simulation that's relevant to this probe sequence.
22/2	2026/09/12 02:48	tool	grepper	0m Args: { "Expression": "mdiobus_register" } Results: { "Output": "\nFull output is too long, showing 500 out of 1138 lines.\nUse more precise expression if possible.\n\nDocumentation/driver-api/driver-model/devres.rst=349=MDIO\n--\nDocumentation/driver-api/driver-model/devres.rst-351- devm_mdiobus_alloc_size()\nDocumentation/driver-api/driver-model/devres.rst:352: devm_mdiobus_register()\nDocumentation/driver-api/driver-model/devres.rst:353: devm_of_mdiobus_register()\nDocumentation/driver-api/driver-model/devres.rst-354-\n--\nDocumentation/firmware-guide/acpi/dsd/motorcomm-yt8xxx-phy.rst=12=device (the same objects that are registered via\nDocumentation/firmware-guide/acpi/dsd/motorcomm-yt8xxx-phy.rst:13:``fwnode_mdiobus_register_phy()``). MAC-side connection properties such as\nDocumentation/firmware-guide/acpi/dsd/motorcomm-yt8xxx-phy.rst-14-``phy-handle`` and ``phy-mode`` are documented in [acpi-mdio-phy]_.\n--\nDocumentation/firmware-guide/acpi/dsd/phy.rst=7=The PHYs on an MDIO bus [phy] are probed and registered using\nDocumentation/firmware-guide/acpi/dsd/phy.rst:8:fwnode_mdiobus_register_phy().\nDocumentation/firmware-guide/acpi/dsd/phy.rst-9-\n--\nDocumentation/networking/phy.rst=40=registered as a distinct device.\n--\nDocumentation/networking/phy.rst-56- driver needs, setup the mii_bus structure, and register with the PAL using\nDocumentation/networking/phy.rst:57: mdiobus_register. Similarly, there's a remove function to undo all of\nDocumentation/networking/phy.rst-58- that (use mdiobus_unregister).\n--\narch/powerpc/platforms/82xx/ep8248e.c=109=static int ep8248e_mdio_probe(struct platform_device ofdev)\n--\narch/powerpc/platforms/82xx/ep8248e.c-132-\narch/powerpc/platforms/82xx/ep8248e.c:133:\tret = of_mdiobus_register(bus, ofdev-\u003edev.of_node);\narch/powerpc/platforms/82xx/ep8248e.c-134-\tif (ret)\n--\narch/powerpc/platforms/pasemi/gpio_mdio.c=207=static int gpio_mdio_probe(struct platform_device ofdev)\n--\narch/powerpc/platforms/pasemi/gpio_mdio.c-243-\narch/powerpc/platforms/pasemi/gpio_mdio.c:244:\terr = of_mdiobus_register(new_bus, np);\narch/powerpc/platforms/pasemi/gpio_mdio.c-245-\n--\ndrivers/net/dsa/bcm_sf2.c=607=static int bcm_sf2_mdio_register(struct dsa_switch ds)\n--\ndrivers/net/dsa/bcm_sf2.c-683-\ndrivers/net/dsa/bcm_sf2.c:684:\terr = mdiobus_register(priv-\u003euser_mii_bus);\ndrivers/net/dsa/bcm_sf2.c-685-\tif (err)\n--\ndrivers/net/dsa/lantiq/lantiq_gswip_common.c=187=static int gswip_mdio(struct gswip_priv priv)\n--\ndrivers/net/dsa/lantiq/lantiq_gswip_common.c-213-\ndrivers/net/dsa/lantiq/lantiq_gswip_common.c:214:\terr = devm_of_mdiobus_register(dev, bus, mdio_np);\ndrivers/net/dsa/lantiq/lantiq_gswip_common.c-215-\n--\ndrivers/net/dsa/microchip/ksz9477.c=321=static int ksz9477_pcs_create(struct ksz_device dev)\n--\ndrivers/net/dsa/microchip/ksz9477.c-341-\ndrivers/net/dsa/microchip/ksz9477.c:342:\tret = devm_mdiobus_register(dev-\u003edev, bus);\ndrivers/net/dsa/microchip/ksz9477.c-343-\tif (ret)\n--\ndrivers/net/dsa/microchip/ksz_common.c=2321=int ksz_mdio_register(struct ksz_device dev)\n--\ndrivers/net/dsa/microchip/ksz_common.c-2392-\ndrivers/net/dsa/microchip/ksz_common.c:2393:\tret = devm_of_mdiobus_register(ds-\u003edev, bus, mdio_np);\ndrivers/net/dsa/microchip/ksz_common.c-2394-\tif (ret) {\n--\ndrivers/net/dsa/microchip/lan937x_main.c=685=static int lan937x_mdio_register(struct ksz_device dev)\n--\ndrivers/net/dsa/microchip/lan937x_main.c-755-\ndrivers/net/dsa/microchip/lan937x_main.c:756:\tret = devm_of_mdiobus_register(ds-\u003edev, bus, mdio_np);\ndrivers/net/dsa/microchip/lan937x_main.c-757-\tif (ret)\n--\ndrivers/net/dsa/mt7530.c=2409=mt7530_setup_mdio(struct mt7530_priv priv)\n--\ndrivers/net/dsa/mt7530.c-2444-\ndrivers/net/dsa/mt7530.c:2445:\tret = devm_of_mdiobus_register(dev, bus, mnp);\ndrivers/net/dsa/mt7530.c-2446-\tif (ret) {\n--\ndrivers/net/dsa/mt7628.c=242=static int mt7628_setup_internal_mdio(struct dsa_switch ds)\n--\ndrivers/net/dsa/mt7628.c-261-\ndrivers/net/dsa/mt7628.c:262:\treturn devm_mdiobus_register(dev, bus);\ndrivers/net/dsa/mt7628.c-263-}\n--\ndrivers/net/dsa/mv88e6xxx/chip.c=3842=static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip chip,\n--\ndrivers/net/dsa/mv88e6xxx/chip.c-3895-\ndrivers/net/dsa/mv88e6xxx/chip.c:3896:\terr = of_mdiobus_register(bus, np);\ndrivers/net/dsa/mv88e6xxx/chip.c-3897-\tif (err) {\n--\ndrivers/net/dsa/mxl862xx/mxl862xx.c=267=static int mxl862xx_setup_mdio(struct dsa_switch ds)\n--\ndrivers/net/dsa/mxl862xx/mxl862xx.c-292-\ndrivers/net/dsa/mxl862xx/mxl862xx.c:293:\tret = devm_of_mdiobus_register(dev, bus, mdio_np);\ndrivers/net/dsa/mxl862xx/mxl862xx.c-294-\tof_node_put(mdio_np);\n--\ndrivers/net/dsa/netc/netc_main.c=149=static int netc_port_create_emdio_bus(struct netc_port np,\n--\ndrivers/net/dsa/netc/netc_main.c-179-\ndrivers/net/dsa/netc/netc_main.c:180:\terr = devm_of_mdiobus_register(dev, bus, node);\ndrivers/net/dsa/netc/netc_main.c-181-\tif (err)\n--\ndrivers/net/dsa/ocelot/felix_vsc9959.c=957=static int vsc9959_mdio_bus_alloc(struct ocelot ocelot)\n--\ndrivers/net/dsa/ocelot/felix_vsc9959.c-1013-\t/ Needed in order to initialize the bus mutex lock /\ndrivers/net/dsa/ocelot/felix_vsc9959.c:1014:\trc = mdiobus_register(bus);\ndrivers/net/dsa/ocelot/felix_vsc9959.c-1015-\tif (rc \u003c 0) {\n--\ndrivers/net/dsa/ocelot/seville_vsc9953.c=878=static int vsc9953_mdio_bus_alloc(struct ocelot ocelot)\n--\ndrivers/net/dsa/ocelot/seville_vsc9953.c-903-\t/* Needed in order to initialize the bus mutex lock /\ndrivers/net/dsa/ocelot/seville_vsc9953.c:904:\trc = devm_of_mdiobus_register(dev, bus, NULL);\ndrivers/net/dsa/ocelot/seville_vsc9953.c-905-\tif (rc \u003c 0) {\n--\ndrivers/net/dsa/qca/ar9331.c=357=static int ar9331_sw_mbus_init(struct ar9331_sw_priv priv)\n--\ndrivers/net/dsa/qca/ar9331.c-381-\ndrivers/net/dsa/qca/ar9331.c:382:\tret = devm_of_mdiobus_register(dev, mbus, mnp);\ndrivers/net/dsa/qca/ar9331.c-383-\tof_node_put(mnp);\n--\ndrivers/net/dsa/qca/qca8k-8xxx.c=947=qca8k_mdio_register(struct qca8k_priv priv)\n--\ndrivers/net/dsa/qca/qca8k-8xxx.c-986-\ndrivers/net/dsa/qca/qca8k-8xxx.c:987:\tret = devm_of_mdiobus_register(dev, bus, mdio);\ndrivers/net/dsa/qca/qca8k-8xxx.c-988-\n--\ndrivers/net/dsa/realtek/rtl83xx.c=74=int rtl83xx_setup_user_mdio(struct dsa_switch ds)\n--\ndrivers/net/dsa/realtek/rtl83xx.c-99-\ndrivers/net/dsa/realtek/rtl83xx.c:100:\tret = devm_of_mdiobus_register(priv-\u003edev, bus, mdio_np);\ndrivers/net/dsa/realtek/rtl83xx.c-101-\tif (ret) {\n--\ndrivers/net/dsa/rzn1_a5psw.c=1117=static int a5psw_probe_mdio(struct a5psw a5psw, struct device_node node)\n--\ndrivers/net/dsa/rzn1_a5psw.c-1143-\ndrivers/net/dsa/rzn1_a5psw.c:1144:\treturn devm_of_mdiobus_register(dev, bus, node);\ndrivers/net/dsa/rzn1_a5psw.c-1145-}\n--\ndrivers/net/dsa/sja1105/sja1105.h=307=void sja1105_frame_memory_partitioning(struct sja1105_private priv);\n--\ndrivers/net/dsa/sja1105/sja1105.h-309-/ From sja1105_mdio.c /\ndrivers/net/dsa/sja1105/sja1105.h:310:int sja1105_mdiobus_register(struct dsa_switch ds);\ndrivers/net/dsa/sja1105/sja1105.h-311-void sja1105_mdiobus_unregister(struct dsa_switch ds);\n--\ndrivers/net/dsa/sja1105/sja1105_main.c=3026=static int sja1105_setup(struct dsa_switch ds)\n--\ndrivers/net/dsa/sja1105/sja1105_main.c-3067-\ndrivers/net/dsa/sja1105/sja1105_main.c:3068:\trc = sja1105_mdiobus_register(ds);\ndrivers/net/dsa/sja1105/sja1105_main.c-3069-\tif (rc \u003c 0) {\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c=258=static int sja1105_mdiobus_base_tx_register(struct sja1105_private priv,\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c-287-\ndrivers/net/dsa/sja1105/sja1105_mdio.c:288:\trc = of_mdiobus_register(bus, np);\ndrivers/net/dsa/sja1105/sja1105_mdio.c-289-\tif (rc) {\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c=312=static int sja1105_mdiobus_base_t1_register(struct sja1105_private priv,\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c-343-\ndrivers/net/dsa/sja1105/sja1105_mdio.c:344:\trc = of_mdiobus_register(bus, np);\ndrivers/net/dsa/sja1105/sja1105_mdio.c-345-\tif (rc) {\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c=368=static int sja1105_mdiobus_pcs_register(struct sja1105_private priv)\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c-395-\ndrivers/net/dsa/sja1105/sja1105_mdio.c:396:\trc = mdiobus_register(bus);\ndrivers/net/dsa/sja1105/sja1105_mdio.c-397-\tif (rc) {\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c=439=static void sja1105_mdiobus_pcs_unregister(struct sja1105_private priv)\n--\ndrivers/net/dsa/sja1105/sja1105_mdio.c-458-\ndrivers/net/dsa/sja1105/sja1105_mdio.c:459:int sja1105_mdiobus_register(struct dsa_switch ds)\ndrivers/net/dsa/sja1105/sja1105_mdio.c-460-{\n--\ndrivers/net/dsa/yt921x.c=595=yt921x_mbus_int_init(struct yt921x_priv priv, struct device_node mnp)\n--\ndrivers/net/dsa/yt921x.c-612-\ndrivers/net/dsa/yt921x.c:613:\tres = devm_of_mdiobus_register(dev, mbus, mnp);\ndrivers/net/dsa/yt921x.c-614-\tif (res)\n--\ndrivers/net/dsa/yt921x.c=726=yt921x_mbus_ext_init(struct yt921x_priv priv, struct device_node mnp)\n--\ndrivers/net/dsa/yt921x.c-743-\ndrivers/net/dsa/yt921x.c:744:\tres = devm_of_mdiobus_register(dev, mbus, mnp);\ndrivers/net/dsa/yt921x.c-745-\tif (res)\n--\ndrivers/net/ethernet/8390/ax88796.c=459=static int ax_mii_init(struct net_device dev)\n--\ndrivers/net/ethernet/8390/ax88796.c-478-\ndrivers/net/ethernet/8390/ax88796.c:479:\terr = mdiobus_register(ax-\u003emii_bus);\ndrivers/net/ethernet/8390/ax88796.c-480-\tif (err)\n--\ndrivers/net/ethernet/actions/owl-emac.c=1321=static int owl_emac_mdio_init(struct net_device netdev)\n--\ndrivers/net/ethernet/actions/owl-emac.c-1345-\ndrivers/net/ethernet/actions/owl-emac.c:1346:\tret = devm_of_mdiobus_register(dev, priv-\u003emii, mdio_node);\ndrivers/net/ethernet/actions/owl-emac.c-1347-\n--\ndrivers/net/ethernet/adi/adin1110.c=509=static int adin1110_register_mdiobus(struct adin1110_priv priv,\n--\ndrivers/net/ethernet/adi/adin1110.c-529-\ndrivers/net/ethernet/adi/adin1110.c:530:\tret = devm_mdiobus_register(dev, mii_bus);\ndrivers/net/ethernet/adi/adin1110.c-531-\tif (ret)\n--\ndrivers/net/ethernet/adi/adin1140.c=617=static int adin1140_mdio_register(struct adin1140_priv priv,\n--\ndrivers/net/ethernet/adi/adin1140.c-636-\ndrivers/net/ethernet/adi/adin1140.c:637:\treturn devm_mdiobus_register(\u0026spidev-\u003edev, priv-\u003emdiobus);\ndrivers/net/ethernet/adi/adin1140.c-638-}\n--\ndrivers/net/ethernet/aeroflex/greth.c=1290=static int greth_mdio_init(struct greth_private greth)\n--\ndrivers/net/ethernet/aeroflex/greth.c-1306-\ndrivers/net/ethernet/aeroflex/greth.c:1307:\tret = mdiobus_register(greth-\u003emdio);\ndrivers/net/ethernet/aeroflex/greth.c-1308-\tif (ret) {\n--\ndrivers/net/ethernet/agere/et131x.c=3931=static int et131x_pci_setup(struct pci_dev pdev,\n--\ndrivers/net/ethernet/agere/et131x.c-4026-\ndrivers/net/ethernet/agere/et131x.c:4027:\trc = mdiobus_register(adapter-\u003emii_bus);\ndrivers/net/ethernet/agere/et131x.c-4028-\tif (rc \u003c 0) {\n--\ndrivers/net/ethernet/altera/altera_tse_main.c=121=static int altera_tse_mdio_create(struct net_device dev, unsigned int id)\n--\ndrivers/net/ethernet/altera/altera_tse_main.c-157-\ndrivers/net/ethernet/altera/altera_tse_main.c:158:\tret = of_mdiobus_register(mdio, mdio_node);\ndrivers/net/ethernet/altera/altera_tse_main.c-159-\tif (ret != 0) {\n--\ndrivers/net/ethernet/amd/au1000_eth.c=1061=static int au1000_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/amd/au1000_eth.c-1221-\ndrivers/net/ethernet/amd/au1000_eth.c:1222:\terr = mdiobus_register(aup-\u003emii_bus);\ndrivers/net/ethernet/amd/au1000_eth.c-1223-\tif (err) {\n--\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c=3428=static int xgbe_phy_init(struct xgbe_prv_data pdata)\n--\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-3717-\tsnprintf(mii-\u003eid, sizeof(mii-\u003eid), \"%s\", dev_name(pdata-\u003edev));\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:3718:\tret = mdiobus_register(mii);\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-3719-\tif (ret) {\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:3720:\t\tdev_err(pdata-\u003edev, \"mdiobus_register failed\\n\");\ndrivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c-3721-\t\treturn ret;\n--\ndrivers/net/ethernet/apm/xgene-v2/mdio.c=98=int xge_mdio_config(struct net_device ndev)\n--\ndrivers/net/ethernet/apm/xgene-v2/mdio.c-118-\tmdio_bus-\u003ephy_mask = 0x1;\ndrivers/net/ethernet/apm/xgene-v2/mdio.c:119:\tret = mdiobus_register(mdio_bus);\ndrivers/net/ethernet/apm/xgene-v2/mdio.c-120-\tif (ret)\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c=837=int xgene_enet_phy_connect(struct net_device ndev)\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-887-\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c:888:static int xgene_mdiobus_register(struct xgene_enet_pdata pdata,\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-889-\t\t\t\t struct mii_bus mdio)\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-912-\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c:913:\t\tret = of_mdiobus_register(mdio, mdio_np);\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-914-\t\tof_node_put(mdio_np);\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-921-\t/* Register the MDIO bus /\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c:922:\tret = mdiobus_register(mdio);\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-923-\tif (ret)\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c=939=int xgene_enet_mdio_config(struct xgene_enet_pdata pdata)\n--\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-957-\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c:958:\tret = xgene_mdiobus_register(pdata, mdio_bus);\ndrivers/net/ethernet/apm/xgene/xgene_enet_hw.c-959-\tif (ret) {\n--\ndrivers/net/ethernet/arc/emac_mdio.c=131=int arc_mdio_probe(struct arc_emac_priv priv)\n--\ndrivers/net/ethernet/arc/emac_mdio.c-172-\ndrivers/net/ethernet/arc/emac_mdio.c:173:\terror = of_mdiobus_register(bus, mdio_node);\ndrivers/net/ethernet/arc/emac_mdio.c-174-\tof_node_put(mdio_node);\n--\ndrivers/net/ethernet/asix/ax88796c_main.c=966=static int ax88796c_probe(struct spi_device spi)\n--\ndrivers/net/ethernet/asix/ax88796c_main.c-1010-\ndrivers/net/ethernet/asix/ax88796c_main.c:1011:\tret = devm_mdiobus_register(\u0026spi-\u003edev, ax_local-\u003emdiobus);\ndrivers/net/ethernet/asix/ax88796c_main.c-1012-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/atheros/ag71xx.c=687=static int ag71xx_mdio_probe(struct ag71xx ag)\n--\ndrivers/net/ethernet/atheros/ag71xx.c-727-\tmnp = of_get_child_by_name(np, \"mdio\");\ndrivers/net/ethernet/atheros/ag71xx.c:728:\terr = devm_of_mdiobus_register(dev, mii_bus, mnp);\ndrivers/net/ethernet/atheros/ag71xx.c-729-\tof_node_put(mnp);\n--\ndrivers/net/ethernet/broadcom/b44.c=2234=static int b44_register_phy_one(struct b44 bp)\n--\ndrivers/net/ethernet/broadcom/b44.c-2259-\ndrivers/net/ethernet/broadcom/b44.c:2260:\terr = mdiobus_register(mii_bus);\ndrivers/net/ethernet/broadcom/b44.c-2261-\tif (err) {\n--\ndrivers/net/ethernet/broadcom/bcm63xx_enet.c=1713=static int bcm_enet_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/broadcom/bcm63xx_enet.c-1829-\ndrivers/net/ethernet/broadcom/bcm63xx_enet.c:1830:\t\tret = mdiobus_register(bus);\ndrivers/net/ethernet/broadcom/bcm63xx_enet.c-1831-\t\tif (ret) {\n--\ndrivers/net/ethernet/broadcom/bgmac-bcma-mdio.c=211=struct mii_bus bcma_mdio_mii_register(struct bgmac bgmac)\n--\ndrivers/net/ethernet/broadcom/bgmac-bcma-mdio.c-235-\ndrivers/net/ethernet/broadcom/bgmac-bcma-mdio.c:236:\terr = of_mdiobus_register(mii_bus, np);\ndrivers/net/ethernet/broadcom/bgmac-bcma-mdio.c-237-\tof_node_put(np);\n--\ndrivers/net/ethernet/broadcom/genet/bcmmii.c=193=int bcmgenet_mii_config(struct net_device dev, bool init)\n--\ndrivers/net/ethernet/broadcom/genet/bcmmii.c-233-\t\tphy_name = \"external RvMII\";\ndrivers/net/ethernet/broadcom/genet/bcmmii.c:234:\t\t/* of_mdiobus_register took care of reading the 'max-speed'\ndrivers/net/ethernet/broadcom/genet/bcmmii.c-235-\t\t * PHY property for us, effectively limiting the PHY supported\n--\ndrivers/net/ethernet/broadcom/sb1250-mac.c=2157=static int sbmac_init(struct platform_device pldev, long long base)\n--\ndrivers/net/ethernet/broadcom/sb1250-mac.c-2227-\t /\ndrivers/net/ethernet/broadcom/sb1250-mac.c:2228:\terr = mdiobus_register(sc-\u003emii_bus);\ndrivers/net/ethernet/broadcom/sb1250-mac.c-2229-\tif (err) {\n--\ndrivers/net/ethernet/broadcom/tg3.c=1505=static int tg3_mdio_init(struct tg3 tp)\n--\ndrivers/net/ethernet/broadcom/tg3.c-1557-\ndrivers/net/ethernet/broadcom/tg3.c:1558:\ti = mdiobus_register(tp-\u003emdio_bus);\ndrivers/net/ethernet/broadcom/tg3.c-1559-\tif (i) {\n--\ndrivers/net/ethernet/cadence/macb_main.c=1023=static int macb_mii_probe(struct net_device netdev)\n--\ndrivers/net/ethernet/cadence/macb_main.c-1096-\ndrivers/net/ethernet/cadence/macb_main.c:1097:static int macb_mdiobus_register(struct macb bp, struct device_node mdio_np)\ndrivers/net/ethernet/cadence/macb_main.c-1098-{\n--\ndrivers/net/ethernet/cadence/macb_main.c-1104-\tif (mdio_np)\ndrivers/net/ethernet/cadence/macb_main.c:1105:\t\treturn of_mdiobus_register(bp-\u003emii_bus, mdio_np);\ndrivers/net/ethernet/cadence/macb_main.c-1106-\n--\ndrivers/net/ethernet/cadence/macb_main.c-1118-\ndrivers/net/ethernet/cadence/macb_main.c:1119:\t\t\treturn of_mdiobus_register(bp-\u003emii_bus, np);\ndrivers/net/ethernet/cadence/macb_main.c-1120-\t\t}\ndrivers/net/ethernet/cadence/macb_main.c-1121-\ndrivers/net/ethernet/cadence/macb_main.c:1122:\treturn mdiobus_register(bp-\u003emii_bus);\ndrivers/net/ethernet/cadence/macb_main.c-1123-}\n--\ndrivers/net/ethernet/cadence/macb_main.c=1125=static int macb_mii_init(struct macb bp)\n--\ndrivers/net/ethernet/cadence/macb_main.c-1158-\ndrivers/net/ethernet/cadence/macb_main.c:1159:\terr = macb_mdiobus_register(bp, mdio_np);\ndrivers/net/ethernet/cadence/macb_main.c-1160-\tif (err)\n--\ndrivers/net/ethernet/davicom/dm9051.c=1107=static int dm9051_mdio_register(struct board_info db)\n--\ndrivers/net/ethernet/davicom/dm9051.c-1124-\ndrivers/net/ethernet/davicom/dm9051.c:1125:\tret = devm_mdiobus_register(\u0026spi-\u003edev, db-\u003emdiobus);\ndrivers/net/ethernet/davicom/dm9051.c-1126-\tif (ret)\n--\ndrivers/net/ethernet/engleder/tsnep_main.c=2423=static int tsnep_mdio_init(struct tsnep_adapter adapter)\n--\ndrivers/net/ethernet/engleder/tsnep_main.c-2454-\ndrivers/net/ethernet/engleder/tsnep_main.c:2455:\tretval = of_mdiobus_register(adapter-\u003emdiobus, np);\ndrivers/net/ethernet/engleder/tsnep_main.c-2456-\n--\ndrivers/net/ethernet/ethoc.c=1024=static int ethoc_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/ethoc.c-1207-\ndrivers/net/ethernet/ethoc.c:1208:\tret = mdiobus_register(priv-\u003emdio);\ndrivers/net/ethernet/ethoc.c-1209-\tif (ret) {\n--\ndrivers/net/ethernet/faraday/ftgmac100.c=1734=static int ftgmac100_setup_mdio(struct net_device netdev)\n--\ndrivers/net/ethernet/faraday/ftgmac100.c-1769-\ndrivers/net/ethernet/faraday/ftgmac100.c:1770:\terr = devm_of_mdiobus_register(priv-\u003edev, priv-\u003emii_bus, mdio_np);\ndrivers/net/ethernet/faraday/ftgmac100.c-1771-\tof_node_put(mdio_np);\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c=36=static int enetc_pci_mdio_probe(struct pci_dev pdev,\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c-90-\ndrivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c:91:\terr = of_mdiobus_register(bus, dev-\u003eof_node);\ndrivers/net/ethernet/freescale/enetc/enetc_pci_mdio.c-92-\tif (err)\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c=266=static int enetc_mdio_probe(struct enetc_pf pf, struct device_node np)\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c-292-\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c:293:\terr = of_mdiobus_register(bus, np);\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c-294-\tif (err)\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c=308=static int enetc_imdio_create(struct enetc_pf pf)\n--\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c-342-\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c:343:\terr = mdiobus_register(bus);\ndrivers/net/ethernet/freescale/enetc/enetc_pf_common.c-344-\tif (err) {\n--\ndrivers/net/ethernet/freescale/fec_main.c=3042=static int fec_enet_mii_init(struct platform_device pdev)\n--\ndrivers/net/ethernet/freescale/fec_main.c-3160-\ndrivers/net/ethernet/freescale/fec_main.c:3161:\terr = of_mdiobus_register(fep-\u003emii_bus, node);\ndrivers/net/ethernet/freescale/fec_main.c-3162-\tif (err)\n--\ndrivers/net/ethernet/freescale/fec_mpc52xx_phy.c=65=static int mpc52xx_fec_mdio_probe(struct platform_device of)\n--\ndrivers/net/ethernet/freescale/fec_mpc52xx_phy.c-105-\ndrivers/net/ethernet/freescale/fec_mpc52xx_phy.c:106:\terr = of_mdiobus_register(bus, np);\ndrivers/net/ethernet/freescale/fec_mpc52xx_phy.c-107-\tif (err)\n--\ndrivers/net/ethernet/freescale/fs_enet/mii-bitbang.c=149=static int fs_enet_mdio_probe(struct platform_device ofdev)\n--\ndrivers/net/ethernet/freescale/fs_enet/mii-bitbang.c-175-\ndrivers/net/ethernet/freescale/fs_enet/mii-bitbang.c:176:\tret = of_mdiobus_register(new_bus, ofdev-\u003edev.of_node);\ndrivers/net/ethernet/freescale/fs_enet/mii-bitbang.c-177-\tif (ret)\n--\ndrivers/net/ethernet/freescale/fs_enet/mii-fec.c=97=static int fs_enet_mdio_probe(struct platform_device ofdev)\n--\ndrivers/net/ethernet/freescale/fs_enet/mii-fec.c-166-\ndrivers/net/ethernet/freescale/fs_enet/mii-fec.c:167:\tret = of_mdiobus_register(new_bus, ofdev-\u003edev.of_node);\ndrivers/net/ethernet/freescale/fs_enet/mii-fec.c-168-\tif (ret)\n--\ndrivers/net/ethernet/freescale/fsl_pq_mdio.c=409=static int fsl_pq_mdio_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/freescale/fsl_pq_mdio.c-493-\ndrivers/net/ethernet/freescale/fsl_pq_mdio.c:494:\terr = of_mdiobus_register(new_bus, np);\ndrivers/net/ethernet/freescale/fsl_pq_mdio.c-495-\tif (err) {\n--\ndrivers/net/ethernet/freescale/xgmac_mdio.c=371=static int xgmac_mdio_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/freescale/xgmac_mdio.c-426-\tif (is_of_node(fwnode))\ndrivers/net/ethernet/freescale/xgmac_mdio.c:427:\t\tret = of_mdiobus_register(bus, to_of_node(fwnode));\ndrivers/net/ethernet/freescale/xgmac_mdio.c-428-\telse if (is_acpi_node(fwnode))\ndrivers/net/ethernet/freescale/xgmac_mdio.c:429:\t\tret = acpi_mdiobus_register(bus, fwnode);\ndrivers/net/ethernet/freescale/xgmac_mdio.c-430-\telse\n--\ndrivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c=266=int hbg_mdio_init(struct hbg_priv priv)\n--\ndrivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c-291-\ndrivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c:292:\tret = devm_mdiobus_register(dev, mdio_bus);\ndrivers/net/ethernet/hisilicon/hibmcge/hbg_mdio.c-293-\tif (ret)\n--\ndrivers/net/ethernet/hisilicon/hix5hd2_gmac.c=1094=static int hix5hd2_dev_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/hisilicon/hix5hd2_gmac.c-1185-\ndrivers/net/ethernet/hisilicon/hix5hd2_gmac.c:1186:\tret = of_mdiobus_register(bus, node);\ndrivers/net/ethernet/hisilicon/hix5hd2_gmac.c-1187-\tif (ret)\n--\ndrivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c=123=int hclge_mac_mdio_config(struct hclge_dev hdev)\n--\ndrivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c-154-\tmdio_bus-\u003ephy_mask = ~(1U \u003c\u003c mac-\u003ephy_addr);\ndrivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c:155:\tret = mdiobus_register(mdio_bus);\ndrivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c-156-\tif (ret) {\n--\ndrivers/net/ethernet/hisilicon/hns_mdio.c=495=static int hns_mdio_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/hisilicon/hns_mdio.c-583-\ndrivers/net/ethernet/hisilicon/hns_mdio.c:584:\t\tret = of_mdiobus_register(new_bus, pdev-\u003edev.of_node);\ndrivers/net/ethernet/hisilicon/hns_mdio.c-585-\t} else if (is_acpi_node(pdev-\u003edev.fwnode)) {\n--\ndrivers/net/ethernet/hisilicon/hns_mdio.c-592-\t\t/ Register the MDIO bus /\ndrivers/net/ethernet/hisilicon/hns_mdio.c:593:\t\tret = mdiobus_register(new_bus);\ndrivers/net/ethernet/hisilicon/hns_mdio.c-594-\t} else {\n--\ndrivers/net/ethernet/ibm/emac/core.c=2560=static int emac_dt_mdio_probe(struct emac_instance dev)\n--\ndrivers/net/ethernet/ibm/emac/core.c-2584-\tsnprintf(bus-\u003eid, MII_BUS_ID_SIZE, \"%s\", dev-\u003eofdev-\u003ename);\ndrivers/net/ethernet/ibm/emac/core.c:2585:\tres = devm_of_mdiobus_register(\u0026dev-\u003eofdev-\u003edev, bus, mii_np);\ndrivers/net/ethernet/ibm/emac/core.c-2586-\tif (res) {\n--\ndrivers/net/ethernet/intel/ixgbe/ixgbe_phy.c=1026=int ixgbe_mii_bus_init(struct ixgbe_hw hw)\n--\ndrivers/net/ethernet/intel/ixgbe/ixgbe_phy.c-1088-\tadapter-\u003emii_bus = bus;\ndrivers/net/ethernet/intel/ixgbe/ixgbe_phy.c:1089:\treturn mdiobus_register(bus);\ndrivers/net/ethernet/intel/ixgbe/ixgbe_phy.c-1090-}\n--\ndrivers/net/ethernet/lantiq_etop.c=385=ltq_etop_mdio_init(struct net_device dev)\n--\ndrivers/net/ethernet/lantiq_etop.c-402-\t\t priv-\u003epdev-\u003ename, priv-\u003epdev-\u003eid);\ndrivers/net/ethernet/lantiq_etop.c:403:\tif (mdiobus_register(priv-\u003emii_bus)) {\ndrivers/net/ethernet/lantiq_etop.c-404-\t\terr = -ENXIO;\n--\ndrivers/net/ethernet/marvell/mvmdio.c=283=static int orion_mdio_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/marvell/mvmdio.c-381-\t/ For the platforms not supporting DT/ACPI fall-back\ndrivers/net/ethernet/marvell/mvmdio.c:382:\t * to mdiobus_register via of_mdiobus_register.\ndrivers/net/ethernet/marvell/mvmdio.c-383-\t /\ndrivers/net/ethernet/marvell/mvmdio.c-384-\tif (is_acpi_node(pdev-\u003edev.fwnode))\ndrivers/net/ethernet/marvell/mvmdio.c:385:\t\tret = acpi_mdiobus_register(bus, pdev-\u003edev.fwnode);\ndrivers/net/ethernet/marvell/mvmdio.c-386-\telse\ndrivers/net/ethernet/marvell/mvmdio.c:387:\t\tret = of_mdiobus_register(bus, pdev-\u003edev.of_node);\ndrivers/net/ethernet/marvell/mvmdio.c-388-\tif (ret \u003c 0) {\n--\ndrivers/net/ethernet/marvell/pxa168_eth.c=1387=static int pxa168_eth_probe(struct platform_device pdev)\n--\ndrivers/net/ethernet/marvell/pxa168_eth.c-1504-\tpep-\u003esmi_bus-\u003ephy_mask = 0xffffffff;\ndrivers/net/ethernet/marvell/pxa168_eth.c:1505:\terr = mdiobus_register(pep-\u003esmi_bus);\ndrivers/net/ethernet/marvell/pxa168_eth.c-1506-\tif (err)\n--\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c=998=static int mtk_mdio_init(struct mtk_eth eth)\n--\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c-1037-\tdev_dbg(eth-\u003edev, \"MDC is running on %d Hz\\n\", MDC_MAX_FREQ / eth-\u003emdc_divider);\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c:1038:\tret = of_mdiobus_register(eth-\u003emii_bus, mii_np);\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c-1039-\n--\ndrivers/net/ethernet/mediatek/mtk_star_emac.c=1422=static int mtk_star_mdio_init(struct net_device ndev)\n--\ndrivers/net/ethernet/mediatek/mtk_star_emac.c-1447-\ndrivers/net/ethernet/mediatek/mtk_star_emac.c:1448:\tret = devm_of_mdiobus_register(dev, priv-\u003emii, mdio_node);\ndrivers/net/ethernet/mediatek/mtk_star_emac.c-1449-\n--\ndrivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio.c=287=int mlxbf_gige_mdio_probe(struct platform_device pdev, struct mlxbf_gige priv)\n--\ndrivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio.c-332-\ndrivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio.c:333:\tret = mdiobus_register(priv-\u003emdiobus);\ndrivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_mdio.c-334-\tif (ret)\n--\ndrivers/net/ethernet/meta/fbnic/fbnic_mdio.c=253=int fbnic_mdiobus_create(struct fbnic_dev *fbd)\n--\ndrivers/net/ethernet/meta/fbnic/fbnic_mdio.c-272-\n\n" }
23/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 51177 output: 20 thoughts: 1225 Thoughts: Analyzing the QCA808X PHY Driver Patch Okay, so I'm looking at this patch for the QCA808X, specifically the QCA8081. My initial thought is to quickly verify what's being modified here. Looks like the `qca808x_config_init` and `qca808x_led_polarity_set` functions in `drivers/net/phy/qcom/qca808x.c` are the targets. Now, let's trace where these functions are used. `qca808x_config_init` is clearly the `.config_init` callback within the `qca808x_driver` structure. Right, so this driver gets instantiated when the system detects a PHY with the `QCA8081_PHY_ID` – 0x004dd101 – on an MDIO bus. That's the trigger. The burning question then is, in a standard virtualized environment like QEMU or Google Compute Engine, do we have any virtual bus or emulated devices that would simulate or instantiate the QCA8081 PHY? That would allow a test with the device. Let's look at QEMU first. No, QEMU doesn't offer any Qualcomm Atheros Ethernet PHY emulation, and certainly not the QCA8081. Okay, let's pivot. If direct emulation is out, can userspace somehow create an MDIO device with an arbitrary PHY ID? Is there a userspace interface, maybe through netlink, sysfs, or ioctls, that allows MDIO device creation? Time to search for that. I need to understand if the MDIO interface, as it is, has a loophole where a test scenario can be created, without needing to depend on hardware.
24/2	2026/09/12 02:48	tool	grepper	0m Error: no matches Args: { "Expression": "new_device.mdio" } Results:* { "error": "no matches" }
25/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 52834 output: 42 thoughts: 61 Thoughts: Investigating MDIO Bus Type Support Okay, let's dive in. I need to figure out if this `mdio_bus_type` structure has proper support for creating new devices through the sysfs interface. My initial instinct is to check if it implements a `new_device` operation that is exposed via sysfs. This is where I would start my debug. I'm going to quickly head over to `drivers/net/phy/mdio_bus_provider.c`, as that's where I expect the `mdio_bus_type` definition and related functions to reside. I'll zero in on the surrounding code, hoping to see the relevant sysfs attributes or callbacks that manage the device instantiation process. Hopefully, it's all straightforward and well-documented. Otherwise, I might be here for a while.
26/2	2026/09/12 02:48	tool	read-file	0m Args: { "File": "drivers/net/phy/mdio_bus_provider.c", "FirstLine": 295, "LineCount": 25 } Results: { "Contents": " 295:\t\t.name\t\t= \"statistics\",\n 296:\t\t.attrs_const\t= mdio_bus_device_statistics_attrs,\n 297:\t};\n 298:\t__ATTRIBUTE_GROUPS(mdio_bus_device_statistics);\n 299:\t\n 300:\tconst struct bus_type mdio_bus_type = {\n 301:\t\t.name\t\t= \"mdio_bus\",\n 302:\t\t.dev_groups\t= mdio_bus_device_statistics_groups,\n 303:\t\t.match\t\t= mdio_bus_match,\n 304:\t\t.uevent\t\t= mdio_uevent,\n 305:\t};\n 306:\t\n 307:\t/*\n 308:\t mdiobus_alloc_size - allocate a mii_bus structure\n 309:\t * @size: extra amount of memory to allocate for private storage.\n 310:\t * If non-zero, then bus-\u003epriv is points to that memory.\n 311:\t \n 312:\t Description: called by a bus driver to allocate an mii_bus\n 313:\t * structure to fill in.\n 314:\t /\n 315:\tstruct mii_bus mdiobus_alloc_size(size_t size)\n 316:\t{\n 317:\t\tstruct mii_bus bus;\n 318:\t\tsize_t aligned_size = ALIGN(sizeof(bus), NETDEV_ALIGN);\n 319:\t\tsize_t alloc_size;\n" }
27/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 53530 output: 19 thoughts: 65 Thoughts: Considering Device Discovery and Netlink Okay, so I'm thinking about how we handle new devices. Specifically, I'm not seeing any `bus_type` callbacks, similar to the I2C's `new_device`, for new devices in this context. That's a bit puzzling. Then it hits me - could the `phy_device` actually be created via Netlink? It's worth exploring. My next step is to dive into the codebase. I'll need to check the `net/ethtool/` directory, and maybe even the `drivers/net/phy/` directory. That's probably where I'll find Netlink commands related to this functionality. Let's see what's in there.
28/2	2026/09/12 02:48	tool	grepper	0m Args: { "Expression": "phy_device_create" } Results: { "Output": "drivers/net/mdio/fwnode_mdio.c=117=int fwnode_mdiobus_register_phy(struct mii_bus bus,\n--\ndrivers/net/mdio/fwnode_mdio.c-134-\telse\ndrivers/net/mdio/fwnode_mdio.c:135:\t\tphy = phy_device_create(bus, addr, phy_id, 0, NULL);\ndrivers/net/mdio/fwnode_mdio.c-136-\tif (IS_ERR(phy)) {\n--\ndrivers/net/phy/nxp-tja11xx.c=551=static void tja1102_p1_register(struct work_struct work)\n--\ndrivers/net/phy/nxp-tja11xx.c-585-\t\t/* Real PHY ID of Port 1 is 0 /\ndrivers/net/phy/nxp-tja11xx.c:586:\t\tphy = phy_device_create(bus, addr, PHY_ID_TJA1102, false, NULL);\ndrivers/net/phy/nxp-tja11xx.c-587-\t\tif (IS_ERR(phy)) {\n--\ndrivers/net/phy/nxp-tja11xx.c-592-\ndrivers/net/phy/nxp-tja11xx.c:593:\t\t/ Overwrite parent device. phy_device_create() set parent to\ndrivers/net/phy/nxp-tja11xx.c-594-\t\t * the mii_bus-\u003edev, which is not correct in case.\n--\ndrivers/net/phy/phy_device.c=728=static int phy_request_driver_module(struct phy_device dev, u32 phy_id)\n--\ndrivers/net/phy/phy_device.c-747-\ndrivers/net/phy/phy_device.c:748:struct phy_device phy_device_create(struct mii_bus bus, int addr, u32 phy_id,\ndrivers/net/phy/phy_device.c-749-\t\t\t\t bool is_c45,\n--\ndrivers/net/phy/phy_device.c-839-}\ndrivers/net/phy/phy_device.c:840:EXPORT_SYMBOL(phy_device_create);\ndrivers/net/phy/phy_device.c-841-\n--\ndrivers/net/phy/phy_device.c=1071=struct phy_device get_phy_device(struct mii_bus bus, int addr, bool is_c45)\n--\ndrivers/net/phy/phy_device.c-1096-\t\tif (!r)\ndrivers/net/phy/phy_device.c:1097:\t\t\treturn phy_device_create(bus, addr, phy_id,\ndrivers/net/phy/phy_device.c-1098-\t\t\t\t\t\t true, \u0026c45_ids);\n--\ndrivers/net/phy/phy_device.c-1100-\ndrivers/net/phy/phy_device.c:1101:\treturn phy_device_create(bus, addr, phy_id, is_c45, \u0026c45_ids);\ndrivers/net/phy/phy_device.c-1102-}\n--\ninclude/linux/phy.h=2149=int phy_modify_paged(struct phy_device phydev, int page, u32 regnum,\n--\ninclude/linux/phy.h-2151-\ninclude/linux/phy.h:2152:struct phy_device phy_device_create(struct mii_bus bus, int addr, u32 phy_id,\ninclude/linux/phy.h-2153-\t\t\t\t bool is_c45,\n" }
29/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 54733 output: 23 thoughts: 493 Thoughts: My Assessment of the QCA8081 Driver's Virtual Environment Compatibility Okay, let's break this down. From what I can tell, the `phy_device_create` function is the gatekeeper for creating PHY devices within the kernel. The code shows it's only called in specific scenarios: when scanning a real MII bus, when parsing a device tree node for a PHY, or directly within the tja11xx PHY driver. It seems there's no way to conjure a QCA8081 PHY device from userspace without physical hardware or a device tree description. Since the target architecture is amd64, and I know a bit about the typical x86/amd64 virtual machine landscape (QEMU/KVM, GCE), that's where things get interesting. My understanding is that these environments don't provide the necessary infrastructure for a QCA8081. Specifically: * There are no hardware MDIO buses for Qualcomm chips in these virtual environments. * Standard emulated network cards in these VMs don't rely on PHY drivers like the QCA8081. They either have internal PHYs, don't use phylib at all, or employ fixed-link configurations. * The QCA8081 is a discrete Ethernet PHY chip – a physical piece of hardware from Qualcomm – typically seen alongside Qualcomm Atheros chips or SoCs. Even if we were on an ARM or MIPS platform where a QCA8081 might be present, it would still necessitate the physical PHY hardware connected via an MDIO bus. So, in standard virtual environments like QEMU or GCE, the QCA8081 PHY simply doesn't exist, nor is it emulated. Looking at the prompt, section 2 describes "Structurally unreachable hardware." This applies perfectly to these types of vendor-specific PHY drivers, like the one for the `qca808x`. Without that physical Qualcomm QCA8081 PHY and the MDIO bus to which it connects, the driver code in `drivers/net/phy/qcom/qca808x.c` cannot be loaded, probed, or executed within the standard virtualized environments. I'm going to quickly double-check the kernel to see if there's any test framework or a mock MDIO bus implementation.
30/2	2026/09/12 02:48	tool	grepper	0m Error: no matches Args: { "Expression": "mdio.mock\|mock.mdio" } Results: { "error": "no matches" }
31/2	2026/09/12 02:48	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 55770 output: 18 thoughts: 13 Thoughts: Here's my take on those thoughts, tailored for an expert audience: Investigating Potential MDIO/GPIO Interactions Okay, so I'm thinking, based on what we're working with, the current issue likely has some connection to the Management Data Input/Output (MDIO) interface or General Purpose Input/Output (GPIO) pins. Given the observed behavior, it's a hunch worth pursuing. The connection could manifest in a few different ways. Perhaps there's an issue with the timing of MDIO transactions, causing incorrect configuration of an associated PHY or other device. Alternatively, a GPIO pin might be misconfigured, impacting the MDIO communication indirectly, by influencing the reset line or interrupt signal of the managed device, or perhaps a signal is being shared between them, and the contention is causing the failure. I'll need to dig into the relevant driver code and hardware documentation to understand the precise interaction and potential failure points. Specifically, I'll start by examining the `mdio-gpio` driver or similar implementations in the kernel and any associated device tree bindings. I'll need to understand how the MDIO signals are mapped to GPIO pins and how they are handled. My first move will be checking for potential pin-muxing conflicts, timing discrepancies, and any interrupt handling issues.
32/2	2026/09/12 02:49	tool	grepper	0m Args: { "Expression": "mdio-gpio" } Results: { "Output": "Documentation/devicetree/bindings/net/dsa/realtek.yaml=37=properties:\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-53-\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:54: mdio-gpios:\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-55- description: GPIO line for the MDIO data line.\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml=115=then:\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-119- - mdc-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:120: - mdio-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-121- - mdio\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-124- mdc-gpios: false\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:125: mdio-gpios: false\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-126- mdio: false\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml=128=else:\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-130- - mdc-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:131: - mdio-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-132- - mdio\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml=134=required:\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-137- # - mdc-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:138: # - mdio-gpios\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-139- # - reset-gpios\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml=144=examples:\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-153- mdc-gpios = \u003c\u0026gpio0 21 GPIO_ACTIVE_HIGH\u003e;\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:154: mdio-gpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e;\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-155- reset-gpios = \u003c\u0026gpio0 14 GPIO_ACTIVE_LOW\u003e;\n--\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-246- mdc-gpios = \u003c\u0026gpio1 16 GPIO_ACTIVE_HIGH\u003e;\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml:247: mdio-gpios = \u003c\u0026gpio1 17 GPIO_ACTIVE_HIGH\u003e;\nDocumentation/devicetree/bindings/net/dsa/realtek.yaml-248- reset-gpios = \u003c\u0026gpio5 0 GPIO_ACTIVE_LOW\u003e;\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-3----\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml:4:$id: http://devicetree.org/schemas/net/mdio-gpio.yaml#\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml=17=properties:\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-19- enum:\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml:20: - virtual,mdio-gpio\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-21- - microchip,mdio-smi0\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml=41=examples:\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-43- aliases {\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml:44: mdio-gpio0 = \u0026mdio0;\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-45- };\n--\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-47- mdio0: mdio {\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml:48: compatible = \"virtual,mdio-gpio\";\nDocumentation/devicetree/bindings/net/mdio-gpio.yaml-49- #address-cells = \u003c1\u003e;\n--\narch/arm/boot/dts/broadcom/bcm2711.dtsi=938=\t\tpin-irq {\n--\narch/arm/boot/dts/broadcom/bcm2711.dtsi-942-\t};\narch/arm/boot/dts/broadcom/bcm2711.dtsi:943:\trgmii_mdio_gpio28: rgmii-mdio-gpio28 {\narch/arm/boot/dts/broadcom/bcm2711.dtsi-944-\t\tpins-mdio {\n--\narch/arm/boot/dts/broadcom/bcm2711.dtsi-949-\t};\narch/arm/boot/dts/broadcom/bcm2711.dtsi:950:\trgmii_mdio_gpio37: rgmii-mdio-gpio37 {\narch/arm/boot/dts/broadcom/bcm2711.dtsi-951-\t\tpins-mdio {\n--\narch/arm/boot/dts/broadcom/bcm47094-asus-rt-ac88u.dts=20=\tswitch {\n--\narch/arm/boot/dts/broadcom/bcm47094-asus-rt-ac88u.dts-22-\t\tmdc-gpios = \u003c\u0026chipcommon 6 GPIO_ACTIVE_HIGH\u003e;\narch/arm/boot/dts/broadcom/bcm47094-asus-rt-ac88u.dts:23:\t\tmdio-gpios = \u003c\u0026chipcommon 7 GPIO_ACTIVE_HIGH\u003e;\narch/arm/boot/dts/broadcom/bcm47094-asus-rt-ac88u.dts-24-\t\treset-gpios = \u003c\u0026chipcommon 10 GPIO_ACTIVE_LOW\u003e;\n--\narch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts=190=\tethernet-switch {\n--\narch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts-193-\t\tmdc-gpios = \u003c\u0026gpio0 21 GPIO_ACTIVE_HIGH\u003e;\narch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts:194:\t\tmdio-gpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e;\narch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts-195-\t\treset-gpios = \u003c\u0026gpio0 14 GPIO_ACTIVE_LOW\u003e;\n--\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts=24=\taliases {\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts:25:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts-26-\t};\n--\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts=152=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts:153:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts-154-\t\t/* Uses MDC and MDIO /\n--\narch/arm/boot/dts/gemini/gemini-nas4210b.dts=67=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-nas4210b.dts:68:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-nas4210b.dts-69-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-nas4220b.dts=66=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-nas4220b.dts:67:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-nas4220b.dts-68-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-ns2502.dts=23=\taliases {\narch/arm/boot/dts/gemini/gemini-ns2502.dts:24:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/gemini/gemini-ns2502.dts-25-\t};\n--\narch/arm/boot/dts/gemini/gemini-ns2502.dts=32=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-ns2502.dts:33:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-ns2502.dts-34-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-rut1xx.dts=59=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-rut1xx.dts:60:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-rut1xx.dts-61-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-sl93512r.dts=71=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-sl93512r.dts:72:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-sl93512r.dts-73-\t\t/ Uses MDC and MDIO /\n--\narch/arm/boot/dts/gemini/gemini-sq201.dts=56=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-sq201.dts:57:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-sq201.dts-58-\t\t/ Uses MDC and MDIO /\n--\narch/arm/boot/dts/gemini/gemini-ssi1328.dts=23=\taliases {\narch/arm/boot/dts/gemini/gemini-ssi1328.dts:24:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/gemini/gemini-ssi1328.dts-25-\t};\n--\narch/arm/boot/dts/gemini/gemini-ssi1328.dts=32=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-ssi1328.dts:33:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-ssi1328.dts-34-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-verbatim-s08v1901-d1.dts=57=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-verbatim-s08v1901-d1.dts:58:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-verbatim-s08v1901-d1.dts-59-\t\t/ Uses MDC and MDIO /\n--\narch/arm/boot/dts/gemini/gemini-wbd111.dts=71=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-wbd111.dts:72:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-wbd111.dts-73-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/gemini/gemini-wbd222.dts=70=\tmdio0: mdio {\narch/arm/boot/dts/gemini/gemini-wbd222.dts:71:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/gemini/gemini-wbd222.dts-72-\t\tgpios = \u003c\u0026gpio0 22 GPIO_ACTIVE_HIGH\u003e, / MDC /\n--\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts=24=\taliases {\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts:25:\t\tmdio-gpio0 = \u0026mdio_gpio;\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts-26-\t\trtc0 = \u0026ds1341;\n--\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts=163=\tmdio_gpio: mdio {\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts:164:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/nxp/imx/imx51-zii-rdu1.dts-165-\t\tpinctrl-names = \"default\";\n--\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts=25=\taliases {\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts:26:\t\tmdio-gpio0 = \u0026mdio_gpio;\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts-27-\t};\n--\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts=40=\tmdio_gpio: mdio {\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts:41:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/nxp/imx/imx51-zii-scu2-mezz.dts-42-\t\tpinctrl-names = \"default\";\n--\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi=93=\taliases {\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi:94:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi-95-\t};\n--\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi=97=\tmdio0: mdio {\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi:98:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi-99-\t\tgpios = \u003c\u0026gpio2 5 GPIO_ACTIVE_HIGH\u003e, / mdc /\n--\narch/arm/boot/dts/nxp/imx/imx6qdl-skov-cpu.dtsi=13=\taliases {\n--\narch/arm/boot/dts/nxp/imx/imx6qdl-skov-cpu.dtsi-18-\t\tethernet2 = \u0026lan2;\narch/arm/boot/dts/nxp/imx/imx6qdl-skov-cpu.dtsi:19:\t\tmdio-gpio0 = \u0026mdio;\narch/arm/boot/dts/nxp/imx/imx6qdl-skov-cpu.dtsi-20-\t\tnand = \u0026gpmi;\n--\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi=14=\taliases {\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi:15:\t\tmdio-gpio0 = \u0026mdio1;\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi-16-\t\trtc0 = \u0026ds1341;\n--\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi=19=\tmdio1: mdio {\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi:20:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/nxp/imx/imx6qdl-zii-rdu2.dtsi-21-\t\t#address-cells = \u003c1\u003e;\n--\narch/arm/boot/dts/nxp/imx/imx6qp-prtwd3.dts=53=\tmdio {\narch/arm/boot/dts/nxp/imx/imx6qp-prtwd3.dts:54:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/nxp/imx/imx6qp-prtwd3.dts-55-\t\tpinctrl-names = \"default\";\n--\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts=10=\taliases {\n--\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-13-\t\tethernet1 = \u0026gmac3;\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts:14:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts:15:\t\tmdio-gpio1 = \u0026mdio1;\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-16-\t};\n--\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts=55=\tmdio0: mdio-0 {\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-56-\t\tstatus = \"okay\";\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts:57:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-58-\t\tgpios = \u003c\u0026qcom_pinmux 1 GPIO_ACTIVE_HIGH\u003e,\n--\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts=180=\tmdio1: mdio-1 {\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-181-\t\tstatus = \"okay\";\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts:182:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/qcom/qcom-ipq8064-rb3011.dts-183-\t\tgpios = \u003c\u0026qcom_pinmux 11 GPIO_ACTIVE_HIGH\u003e,\n--\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts=16=\taliases {\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts-17-\t\tethernet0 = \u0026ethernet1;\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts:18:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts-19-\t\tmmc0 = \u0026sdmmc1;\n--\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts=118=\tmdio0: mdio {\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts:119:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/st/stm32mp133c-prihmb.dts-120-\t\t#address-cells = \u003c1\u003e;\n--\narch/arm/boot/dts/st/stm32mp151a-prtt1c.dts=38=\tmdio0: mdio {\narch/arm/boot/dts/st/stm32mp151a-prtt1c.dts:39:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/st/stm32mp151a-prtt1c.dts-40-\t\t#address-cells = \u003c1\u003e;\n--\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi=16=\taliases {\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi-17-\t\tethernet0 = \u0026ethernet0;\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi:18:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi-19-\t\tserial0 = \u0026uart4;\n--\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi=44=\tmdio0: mdio {\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi:45:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm/boot/dts/st/stm32mp151a-prtt1l.dtsi-46-\t\t#address-cells = \u003c1\u003e;\n--\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi=9=\taliases {\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi:10:\t\tmdio-gpio0 = \u0026mdio0;\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi-11-\t\trtc0 = \u0026ds1341;\n--\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi=18=\tmdio0: mdio {\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi:19:\t\tcompatible = \"virtual,mdio-gpio\";\narch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi-20-\t\tpinctrl-names = \"default\";\n--\ndrivers/net/mdio/Kconfig=90=config MDIO_GPIO\n--\ndrivers/net/mdio/Kconfig-97-\t To compile this driver as a module, choose M here: the module\ndrivers/net/mdio/Kconfig:98:\t will be called mdio-gpio.\ndrivers/net/mdio/Kconfig-99-\n--\ndrivers/net/mdio/Makefile=13=obj-$(CONFIG_MDIO_CAVIUM)\t\t+= mdio-cavium.o\ndrivers/net/mdio/Makefile:14:obj-$(CONFIG_MDIO_GPIO)\t\t\t+= mdio-gpio.o\ndrivers/net/mdio/Makefile-15-obj-$(CONFIG_MDIO_HISI_FEMAC)\t\t+= mdio-hisi-femac.o\n--\ndrivers/net/mdio/mdio-gpio.c=157=static int mdio_gpio_probe(struct platform_device pdev)\n--\ndrivers/net/mdio/mdio-gpio.c-171-\tif (pdev-\u003edev.of_node) {\ndrivers/net/mdio/mdio-gpio.c:172:\t\tbus_id = of_alias_get_id(pdev-\u003edev.of_node, \"mdio-gpio\");\ndrivers/net/mdio/mdio-gpio.c-173-\t\tif (bus_id \u003c 0) {\n--\ndrivers/net/mdio/mdio-gpio.c=197=static const struct of_device_id mdio_gpio_of_match[] = {\ndrivers/net/mdio/mdio-gpio.c:198:\t{ .compatible = \"virtual,mdio-gpio\", },\ndrivers/net/mdio/mdio-gpio.c-199-\t{ .compatible = \"microchip,mdio-smi0\" },\n--\ndrivers/net/mdio/mdio-gpio.c=204=static struct platform_driver mdio_gpio_driver = {\n--\ndrivers/net/mdio/mdio-gpio.c-207-\t.driver\t\t= {\ndrivers/net/mdio/mdio-gpio.c:208:\t\t.name\t= \"mdio-gpio\",\ndrivers/net/mdio/mdio-gpio.c-209-\t\t.of_match_table = mdio_gpio_of_match,\n--\ndrivers/net/mdio/mdio-gpio.c=213=module_platform_driver(mdio_gpio_driver);\ndrivers/net/mdio/mdio-gpio.c-214-\ndrivers/net/mdio/mdio-gpio.c:215:MODULE_ALIAS(\"platform:mdio-gpio\");\ndrivers/net/mdio/mdio-gpio.c-216-MODULE_AUTHOR(\"Laurent Pinchart, Paulius Zaleckas\");\n" }
33/2	2026/09/12 02:49	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 63342 output: 111 thoughts: 416 Thoughts: My Assessment: This Code is Unfuzzable in Standard Environments Okay, so here's the situation. I'm looking at the `mdio-gpio` driver, specifically its relationship to the QCA8081 PHY. I can see that this `mdio-gpio` driver is designed for bitbanging MDIO over GPIO, and on amd64 in environments like QEMU and Google Compute Engine (GCE), there's no device tree entry that even defines a QCA8081 PHY. Even if the `CONFIG_QCA808X_PHY` option is enabled in the kernel config, the driver can't possibly bind to any hardware because the actual Qualcomm QCA8081 Ethernet PHY simply isn't present in these virtualized settings. Let me break it down: * The changes are exclusively within `drivers/net/phy/qcom/qca808x.c`. * This specific file is a device driver for the Qualcomm Atheros QCA8081 Ethernet PHY. * The driver fundamentally relies on the presence of physical hardware – the QCA8081 MDIO transceiver ASIC. That specific piece of hardware is not emulated in standard QEMU or GCE environments. * The target architecture is amd64. Based on these facts, and considering the "Structurally unreachable hardware" criteria in section 2 (things like vendor-specific PCIe switches or NICs requiring physical hardware not emulated in standard QEMU), it's clear that this code is structurally unreachable for syzkaller fuzzing. It's simply not going to be triggered in these virtualized environments. Therefore, `WorthFuzzing` must be false. Let's nail down the metadata: * `WorthFuzzing`: false – Obviously! * `Reasoning`: Driver for Qualcomm QCA8081 Ethernet PHY transceiver. Structurally unreachable in standard virtualized fuzzing environments (QEMU/GCE) due to requiring physical hardware not emulated. This is rock solid reasoning. * `FocusSymbols`: \[ ] – Empty, because it's not worth fuzzing. * `EnableConfigs`: \[ ] – Also empty, because it's not worth fuzzing. Alright, that's all very clear. Everything is in order, and it's time to call `set-results`.
34/2	2026/09/12 02:49	tool	set-results	0m Args: { "EnableConfigs": [], "FocusSymbols": [], "Reasoning": "The patched file (drivers/net/phy/qcom/qca808x.c) is a hardware device driver for the Qualcomm Atheros QCA8081 Ethernet PHY transceiver. It requires physical hardware connected to an MDIO bus and is not emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable for fuzzing.", "WorthFuzzing": false } Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patched file (drivers/net/phy/qcom/qca808x.c) is a hardware device driver for the Qualcomm Atheros QCA8081 Ethernet PHY transceiver. It requires physical hardware connected to an MDIO bus and is not emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable for fuzzing.", "WorthFuzzing": false }
35/1	2026/09/12 02:49	action	If	0m Args: { "WorthFuzzing": false } Results: null

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)