| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/08/20 20:47 | flow | patch-triage |
1mArgs:null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"KMSANReasoning": "",
"NeedsKMSAN": false,
"Reasoning": "The patch modifies the MediaTek MT7530/MT7621 DSA switch driver to disable EEE advertisement on the switch PHYs due to hardware issues. This is a hardware-specific driver for physical MediaTek switches that are not emulated in standard QEMU or GCE environments. The code cannot be reached during generic kernel fuzzing in virtualized environments.",
"WorthFuzzing": false
} |
| 1/1 | 2026/08/20 20:47 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 879af147d6247ccab9dd60d41a826d1f7e20d66a\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Thu Aug 20 20:47:01 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c\nindex aa33d94e11b5f..bb22c19cf314a 100644\n--- a/drivers/net/dsa/mt7530.c\n+++ b/drivers/net/dsa/mt7530.c\n@@ -2518,6 +2518,15 @@ mt7530_setup(struct dsa_switch *ds)\n \tif ((val \u0026 MT7530_XTAL_MASK) == MT7530_XTAL_40MHZ)\n \t\tmt7530_pll_setup(priv);\n \n+\tif (priv-\u003einfo-\u003ebroken_eee) {\n+\t\t/* Disable EEE advertisement on the switch PHYs. */\n+\t\tfor (i = MT753X_CTRL_PHY_ADDR(priv-\u003emdiodev-\u003eaddr);\n+\t\t i \u003c MT753X_CTRL_PHY_ADDR(priv-\u003emdiodev-\u003eaddr) + MT7530_NUM_PHYS;\n+\t\t i++) {\n+\t\t\tmt7530_phy_write_c45(priv, i, MDIO_MMD_AN, MDIO_AN_EEE_ADV, 0);\n+\t\t}\n+\t}\n+\n \tmt753x_trap_frames(priv);\n \n \t/* Enable and reset MIB counters */\n@@ -3388,6 +3397,7 @@ static const struct phylink_mac_ops mt753x_phylink_mac_ops = {\n const struct mt753x_info mt753x_table[] = {\n \t[ID_MT7621] = {\n \t\t.id = ID_MT7621,\n+\t\t.broken_eee = true,\n \t\t.pcs_ops = \u0026mt7530_pcs_ops,\n \t\t.sw_setup = mt7530_setup,\n \t\t.phy_read_c22 = mt7530_phy_read_c22,\n@@ -3399,6 +3409,7 @@ const struct mt753x_info mt753x_table[] = {\n \t},\n \t[ID_MT7530] = {\n \t\t.id = ID_MT7530,\n+\t\t.broken_eee = true,\n \t\t.pcs_ops = \u0026mt7530_pcs_ops,\n \t\t.sw_setup = mt7530_setup,\n \t\t.phy_read_c22 = mt7530_phy_read_c22,\ndiff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h\nindex dd33b0df3419e..0ca33b9d42105 100644\n--- a/drivers/net/dsa/mt7530.h\n+++ b/drivers/net/dsa/mt7530.h\n@@ -853,6 +853,7 @@ struct mt753x_info {\n \tvoid (*mac_port_config)(struct dsa_switch *ds, int port,\n \t\t\t\tunsigned int mode,\n \t\t\t\tphy_interface_t interface);\n+\tbool broken_eee;\n };\n \n /* struct mt7530_priv -\tThis is the main data structure for holding the state\n"
} |
| 2/1 | 2026/08/20 20:47 | agent | patch-evaluator |
1mModel:best-expensive Args: null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch modifies the MediaTek MT7530/MT7621 DSA switch driver to disable EEE advertisement on the switch PHYs due to hardware issues. This is a hardware-specific driver for physical MediaTek switches that are not emulated in standard QEMU or GCE environments. The code cannot be reached during generic kernel fuzzing in virtualized environments.",
"WorthFuzzing": false
}Instruction: You are an expert Linux kernel maintainer. Your job is to review a provided patch series and determine if it makes functional changes to the kernel that should be fuzzed. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on your internal knowledge of the kernel. You must actively use your code access tools to examine the actual source code and confirm any assumptions. Return WorthFuzzing=false if the patch only contains: - Modifications to Documentation/, Kconfig files, or code comments. - Purely decorative changes, such as logging (e.g., pr_err, printk) or tracepoints. - Changes to numeric constants or macros that do not functionally alter execution flow. - Code paths that are impossible to reach in virtualized environments like GCE or QEMU, even when utilizing software-emulated hardware (e.g., usb gadget, mac80211_hwsim). - Code in vendor-specific PCIe switch, SmartNIC, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) that require physical PCIe hardware cards not emulated in standard QEMU. - Driver .remove, .shutdown, or pci_unregister_driver teardown callbacks (e.g., igb_remove) that are executed only during PCI hot-unplug or sysfs driver unbind operations. If it modifies reachable core kernel logic, drivers, or architectures, use your code search tools to verify the code can be executed, then return WorthFuzzing=true. When returning WorthFuzzing=true, you MUST ALSO: 1. Extract any specific kernel functions that should be heavily fuzzed into FocusSymbols. Avoid listing generic hot-path functions to prevent skewed test distributions. Prefer non-static, non-inlined API entrypoint functions over internal static helper functions (which are inlined by the compiler and do not have distinct symbol addresses). 2. Identify any specific CONFIG_ options required to properly test this new/modified feature. Go and look into the Kconfig files and check for ifdefs around the code, do not make assumptions. Also check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed for Kbuild to compile the code statically into vmlinux. List them in the EnableConfigs output array, and DO NOT add a '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: For your convenience, here is the diff of the changes:
commit 879af147d6247ccab9dd60d41a826d1f7e20d66a
Author: syz-cluster <triage@syzkaller.com>
Date: Thu Aug 20 20:47:01 2026 +0000
syz-cluster: applied patch under review
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index aa33d94e11b5f..bb22c19cf314a 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2518,6 +2518,15 @@ mt7530_setup(struct dsa_switch *ds)
if ((val & MT7530_XTAL_MASK) == MT7530_XTAL_40MHZ)
mt7530_pll_setup(priv);
+ if (priv->info->broken_eee) {
+ /* Disable EEE advertisement on the switch PHYs. */
+ for (i = MT753X_CTRL_PHY_ADDR(priv->mdiodev->addr);
+ i < MT753X_CTRL_PHY_ADDR(priv->mdiodev->addr) + MT7530_NUM_PHYS;
+ i++) {
+ mt7530_phy_write_c45(priv, i, MDIO_MMD_AN, MDIO_AN_EEE_ADV, 0);
+ }
+ }
+
mt753x_trap_frames(priv);
/* Enable and reset MIB counters */
@@ -3388,6 +3397,7 @@ static const struct phylink_mac_ops mt753x_phylink_mac_ops = {
const struct mt753x_info mt753x_table[] = {
[ID_MT7621] = {
.id = ID_MT7621,
+ .broken_eee = true,
.pcs_ops = &mt7530_pcs_ops,
.sw_setup = mt7530_setup,
.phy_read_c22 = mt7530_phy_read_c22,
@@ -3399,6 +3409,7 @@ const struct mt753x_info mt753x_table[] = {
},
[ID_MT7530] = {
.id = ID_MT7530,
+ .broken_eee = true,
.pcs_ops = &mt7530_pcs_ops,
.sw_setup = mt7530_setup,
.phy_read_c22 = mt7530_phy_read_c22,
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index dd33b0df3419e..0ca33b9d42105 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -853,6 +853,7 @@ struct mt753x_info {
void (*mac_port_config)(struct dsa_switch *ds, int port,
unsigned int mode,
phy_interface_t interface);
+ bool broken_eee;
};
/* struct mt7530_priv - This is the main data structure for holding the state
|
| 3/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 2649 output: 41 thoughts: 265 Thoughts: **My Assessment of the MT7530 Driver Patch** Okay, so I've got this patch here that seems to be tweaking the MediaTek MT7530 DSA switch driver, specifically in `drivers/net/dsa/mt7530.c` and `.h`. They're adding a `broken_eee` flag to the `mt753x_info` struct and hardcoding it to `true` for `ID_MT7621` and `ID_MT7530` - interesting. The meat of it appears to be in `mt7530_setup()`, where this `broken_eee` flag is used to disable EEE advertisement through `mt7530_phy_write_c45()`. Seems like it's addressing an issue where EEE isn't working correctly on those specific switch variants. My initial thought is, how do I actually *test* this? This is a DSA switch driver, which means it's designed to interact with physical hardware. DSA switches are generally not something you can just conjure up in a standard virtual environment like QEMU. They’re hardwired into the system. It's likely that a QEMU setup wouldn't trigger any of this code. I need to confirm if there is some way to emulate or trigger the code. I'll need to dig into `drivers/net/dsa/mt7530.c` to look for hooks into the network stack, or ways the MDIO could be used to write the the PHY registers. I'll also check if it's a platform driver or MDIO driver. |
| 4/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "mt7530_setup",
"PathPrefix": "drivers/net/dsa/mt7530.c"
}Results: {
"Output": "drivers/net/dsa/mt7530.c=373=static void\ndrivers/net/dsa/mt7530.c:374:mt7530_setup_port6(struct dsa_switch *ds, phy_interface_t interface)\ndrivers/net/dsa/mt7530.c-375-{\n--\ndrivers/net/dsa/mt7530.c=1046=static const char *mt7530_p5_mode_str(unsigned int mode)\n--\ndrivers/net/dsa/mt7530.c-1057-\ndrivers/net/dsa/mt7530.c:1058:static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)\ndrivers/net/dsa/mt7530.c-1059-{\n--\ndrivers/net/dsa/mt7530.c=1643=static int\ndrivers/net/dsa/mt7530.c:1644:mt7530_setup_vlan0(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-1645-{\n--\ndrivers/net/dsa/mt7530.c=1660=mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)\n--\ndrivers/net/dsa/mt7530.c-1697-\t\tmutex_lock(\u0026priv-\u003ereg_mutex);\ndrivers/net/dsa/mt7530.c:1698:\t\tmt7530_setup_vlan0(priv);\ndrivers/net/dsa/mt7530.c-1699-\t\tmutex_unlock(\u0026priv-\u003ereg_mutex);\n--\ndrivers/net/dsa/mt7530.c=1992=mt7530_port_vlan_add(struct dsa_switch *ds, int port,\n--\ndrivers/net/dsa/mt7530.c-2002-\ndrivers/net/dsa/mt7530.c:2003:\t/* VID 0 is managed exclusively by mt7530_setup_vlan0() for\ndrivers/net/dsa/mt7530.c-2004-\t * VLAN-unaware bridge operation. Don't let the bridge overwrite\n--\ndrivers/net/dsa/mt7530.c=2046=mt7530_port_vlan_del(struct dsa_switch *ds, int port,\n--\ndrivers/net/dsa/mt7530.c-2053-\ndrivers/net/dsa/mt7530.c:2054:\t/* VID 0 is managed exclusively by mt7530_setup_vlan0(). */\ndrivers/net/dsa/mt7530.c-2055-\tif (vlan-\u003evid == 0)\n--\ndrivers/net/dsa/mt7530.c=2229=static int\ndrivers/net/dsa/mt7530.c:2230:mt7530_setup_gpio(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-2231-{\n--\ndrivers/net/dsa/mt7530.c=2259=static void\ndrivers/net/dsa/mt7530.c:2260:mt7530_setup_mdio_irq(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-2261-{\n--\ndrivers/net/dsa/mt7530.c=2309=static int\ndrivers/net/dsa/mt7530.c:2310:mt7530_setup_irq(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-2311-{\n--\ndrivers/net/dsa/mt7530.c=2360=static int\ndrivers/net/dsa/mt7530.c:2361:mt7530_setup_mdio(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-2362-{\n--\ndrivers/net/dsa/mt7530.c-2394-\tif (priv-\u003eirq_domain \u0026\u0026 !mnp)\ndrivers/net/dsa/mt7530.c:2395:\t\tmt7530_setup_mdio_irq(priv);\ndrivers/net/dsa/mt7530.c-2396-\n--\ndrivers/net/dsa/mt7530.c=2409=static int\ndrivers/net/dsa/mt7530.c:2410:mt7530_setup(struct dsa_switch *ds)\ndrivers/net/dsa/mt7530.c-2411-{\n--\ndrivers/net/dsa/mt7530.c-2568-\t/* Setup VLAN ID 0 for VLAN-unaware bridges */\ndrivers/net/dsa/mt7530.c:2569:\tret = mt7530_setup_vlan0(priv);\ndrivers/net/dsa/mt7530.c-2570-\tif (ret)\n--\ndrivers/net/dsa/mt7530.c-2613-\t\t\tmt7530_clear(priv, MT753X_MTRAP, MT7530_P5_DIS);\ndrivers/net/dsa/mt7530.c:2614:\t\t\tmt7530_setup_port5(ds, interface);\ndrivers/net/dsa/mt7530.c-2615-\t\t}\n--\ndrivers/net/dsa/mt7530.c-2619-\tif (of_property_read_bool(priv-\u003edev-\u003eof_node, \"gpio-controller\")) {\ndrivers/net/dsa/mt7530.c:2620:\t\tret = mt7530_setup_gpio(priv);\ndrivers/net/dsa/mt7530.c-2621-\t\tif (ret)\n--\ndrivers/net/dsa/mt7530.c=2635=mt7531_setup_common(struct dsa_switch *ds)\n--\ndrivers/net/dsa/mt7530.c-2701-\t/* Setup VLAN ID 0 for VLAN-unaware bridges */\ndrivers/net/dsa/mt7530.c:2702:\treturn mt7530_setup_vlan0(priv);\ndrivers/net/dsa/mt7530.c-2703-}\n--\ndrivers/net/dsa/mt7530.c=2915=mt7530_mac_config(struct dsa_switch *ds, int port, unsigned int mode,\n--\ndrivers/net/dsa/mt7530.c-2920-\tif (port == 5)\ndrivers/net/dsa/mt7530.c:2921:\t\tmt7530_setup_port5(priv-\u003eds, interface);\ndrivers/net/dsa/mt7530.c-2922-\telse if (port == 6)\ndrivers/net/dsa/mt7530.c:2923:\t\tmt7530_setup_port6(priv-\u003eds, interface);\ndrivers/net/dsa/mt7530.c-2924-}\n--\ndrivers/net/dsa/mt7530.c=3185=mt753x_setup(struct dsa_switch *ds)\n--\ndrivers/net/dsa/mt7530.c-3193-\ndrivers/net/dsa/mt7530.c:3194:\tret = mt7530_setup_irq(priv);\ndrivers/net/dsa/mt7530.c-3195-\tif (ret)\n--\ndrivers/net/dsa/mt7530.c-3197-\ndrivers/net/dsa/mt7530.c:3198:\tret = mt7530_setup_mdio(priv);\ndrivers/net/dsa/mt7530.c-3199-\tif (ret)\n--\ndrivers/net/dsa/mt7530.c=3397=const struct mt753x_info mt753x_table[] = {\n--\ndrivers/net/dsa/mt7530.c-3401-\t\t.pcs_ops = \u0026mt7530_pcs_ops,\ndrivers/net/dsa/mt7530.c:3402:\t\t.sw_setup = mt7530_setup,\ndrivers/net/dsa/mt7530.c-3403-\t\t.phy_read_c22 = mt7530_phy_read_c22,\n--\ndrivers/net/dsa/mt7530.c-3413-\t\t.pcs_ops = \u0026mt7530_pcs_ops,\ndrivers/net/dsa/mt7530.c:3414:\t\t.sw_setup = mt7530_setup,\ndrivers/net/dsa/mt7530.c-3415-\t\t.phy_read_c22 = mt7530_phy_read_c22,\n"
} |
| 5/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 5783 output: 39 thoughts: 116 Thoughts: **Investigating the Reachability of the MT7530/MT7531/MT7621 MDIO Driver in QEMU** Okay, so I'm trying to figure out if I can get this MT7530/MT7531/MT7621 MDIO driver to fire up within a QEMU environment. It's an MDIO driver, which means it's responsible for managing devices connected via the MDIO interface. Now, the critical question is whether QEMU's setup will allow me to even hit this code. My experience suggests that MDIO devices are typically brought online through the device tree. If the device tree configuration doesn't explicitly define a node for this particular hardware, the driver will likely remain dormant – not getting probed at all. So, the next logical step is to dive into the driver's code, specifically `drivers/net/dsa/mt7530.c`, and hunt for clues. I'm looking for a `MODULE_DEVICE_TABLE` or an `of_match_table` within that file. These tables are the key. They define the hardware identifiers that the driver is designed to recognize. If I can find one that aligns with what QEMU provides or can be configured to emulate, I'm in business. If not, I'll need to look at either modifying the device tree within QEMU, or potentially creating a minimal device tree override. I'll need to assess the possibilities! |
| 6/2 | 2026/08/20 20:47 | tool | grepper |
0mError:no matches Args: {
"Expression": "of_match_table",
"PathPrefix": "drivers/net/dsa/mt7530.c"
}Results: {
"error": "no matches"
} |
| 7/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 6272 output: 41 thoughts: 23 Thoughts: Here's my attempt at summarizing the thought process, tailored for an expert audience and written in the first person: **MDIO Driver Investigation: Initial Steps** Okay, so we're dealing with an MDIO driver. My initial instinct is to jump straight to the probe function, particularly `mt7530_probe`. That's where the critical initialization and device setup typically happens, and where the driver should be identifying and configuring the specific hardware. I need to understand what's happening at the point of detection. Let's see what's going on there. |
| 8/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "mt7530_probe",
"PathPrefix": "drivers/net/dsa/mt7530.c"
}Results: {
"Output": "drivers/net/dsa/mt7530.c=3466=int\ndrivers/net/dsa/mt7530.c:3467:mt7530_probe_common(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-3468-{\n--\ndrivers/net/dsa/mt7530.c-3497-}\ndrivers/net/dsa/mt7530.c:3498:EXPORT_SYMBOL_GPL(mt7530_probe_common);\ndrivers/net/dsa/mt7530.c-3499-\n"
} |
| 9/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 6636 output: 36 thoughts: 27 Thoughts: Here's a summary of my thought process: **Diving into the `mt7530_probe_common` Function** Okay, so `mt7530_probe_common` is an exported function, which means it's available for other parts of the kernel to use. That immediately piques my interest. I need to understand its context and how it's being leveraged within the system. My next step, naturally, is to figure out the call sites. I need to track down everywhere this particular function is being invoked to get a grasp of its role and significance. Understanding where it's used is key to understanding what it does. |
| 10/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "mt7530_probe_common",
"PathPrefix": "drivers/net/dsa/"
}Results: {
"Output": "drivers/net/dsa/mt7530-mdio.c=155=mt7530_probe(struct mdio_device *mdiodev)\n--\ndrivers/net/dsa/mt7530-mdio.c-170-\ndrivers/net/dsa/mt7530-mdio.c:171:\tret = mt7530_probe_common(priv);\ndrivers/net/dsa/mt7530-mdio.c-172-\tif (ret)\n--\ndrivers/net/dsa/mt7530-mmio.c=29=mt7988_probe(struct platform_device *pdev)\n--\ndrivers/net/dsa/mt7530-mmio.c-41-\ndrivers/net/dsa/mt7530-mmio.c:42:\tret = mt7530_probe_common(priv);\ndrivers/net/dsa/mt7530-mmio.c-43-\tif (ret)\n--\ndrivers/net/dsa/mt7530.c=3466=int\ndrivers/net/dsa/mt7530.c:3467:mt7530_probe_common(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-3468-{\n--\ndrivers/net/dsa/mt7530.c-3497-}\ndrivers/net/dsa/mt7530.c:3498:EXPORT_SYMBOL_GPL(mt7530_probe_common);\ndrivers/net/dsa/mt7530.c-3499-\n--\ndrivers/net/dsa/mt7530.h=941=static inline void INIT_MT7530_DUMMY_POLL(struct mt7530_dummy_poll *p,\n--\ndrivers/net/dsa/mt7530.h-947-\ndrivers/net/dsa/mt7530.h:948:int mt7530_probe_common(struct mt7530_priv *priv);\ndrivers/net/dsa/mt7530.h-949-void mt7530_remove_common(struct mt7530_priv *priv);\n"
} |
| 11/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 7438 output: 42 thoughts: 51 Thoughts: Okay, let's dive into this. Here's how I'd approach this task, as if these were my internal thoughts: **Checking Device Tree Binding in MT7530 Driver Code** Right, so I need to understand how the MT7530 switch driver interacts with the device tree. My first instinct, given the context, is to check the `of_match_table` implementation in the MT7530 driver code. Specifically, I'll be looking in the `drivers/net/dsa/mt7530-mdio.c` and `drivers/net/dsa/mt7530-mmio.c` files. I'm focusing on those two because they likely handle the different communication interfaces for the switch: MDIO (management data I/O) and MMIO (memory-mapped I/O). The `of_match_table` is, of course, the key data structure. I need to see how the driver identifies and binds to the correct device nodes in the device tree. I'm expecting to find entries that match specific "compatible" strings or other properties defined for the MT7530, allowing the driver to initialize correctly. It's a fundamental part of the device driver's bootstrap sequence. I'll need to review how these `of_match_table` entries are structured, any corresponding initialization or probe functions that rely on them, and how the driver ultimately handles resource allocation based on the DT binding. I will ensure that the driver will be bound correctly and that resources are initialized. |
| 12/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "of_match_table",
"PathPrefix": "drivers/net/dsa/mt7530-mdio.c"
}Results: {
"Output": "drivers/net/dsa/mt7530-mdio.c=258=static struct mdio_driver mt7530_mdio_driver = {\n--\ndrivers/net/dsa/mt7530-mdio.c-263-\t\t.name = \"mt7530-mdio\",\ndrivers/net/dsa/mt7530-mdio.c:264:\t\t.of_match_table = mt7530_of_match,\ndrivers/net/dsa/mt7530-mdio.c-265-\t},\n"
} |
| 13/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8021 output: 46 thoughts: 12 Thoughts: Okay, here's the summary, rendered as if I'm the one thinking it: **Considering the mt7530_of_match Function** Alright, let's break down this `mt7530_of_match` function. My initial thought is, this is probably a crucial piece of device tree handling for an MT7530-based system. Given my background, I'm expecting this function to be involved in probing, and matching a device node in the device tree to a driver instance. Specifically, it's very likely acting as the callback function within the "of_match_table" structure, likely comparing some properties within the device tree node (perhaps compatible strings, or some custom platform data) against a predefined table of supported configurations. I'm mentally running through the typical sequence: the kernel identifies a device, tries to find a suitable driver. It checks the device's properties against the compatible strings defined in a match table. When there is a match, then this function is called, to confirm the driver should attach to this device. My experience tells me that this function does not actually probe the hardware. It is for device tree matching. I need to confirm whether the function is meant to just be a simple "compatible" string match or if it's designed to do a slightly more complex check, perhaps validating other aspects of the device tree node beyond just the "compatible" property. This could involve checking for the presence/absence of specific properties, verifying their values, or even potentially retrieving some initial configuration parameters. I want to look more deeply into the source code to get a comprehensive understanding of the logic. |
| 14/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "mt7530_of_match",
"PathPrefix": "drivers/net/dsa/mt7530-mdio.c"
}Results: {
"Output": "drivers/net/dsa/mt7530-mdio.c=91=mt7531_create_sgmii(struct mt7530_priv *priv)\n--\ndrivers/net/dsa/mt7530-mdio.c-137-\ndrivers/net/dsa/mt7530-mdio.c:138:static const struct of_device_id mt7530_of_match[] = {\ndrivers/net/dsa/mt7530-mdio.c-139-\t{ .compatible = \"mediatek,mt7621\", .data = \u0026mt753x_table[ID_MT7621], },\n--\ndrivers/net/dsa/mt7530-mdio.c-143-};\ndrivers/net/dsa/mt7530-mdio.c:144:MODULE_DEVICE_TABLE(of, mt7530_of_match);\ndrivers/net/dsa/mt7530-mdio.c-145-\n--\ndrivers/net/dsa/mt7530-mdio.c=258=static struct mdio_driver mt7530_mdio_driver = {\n--\ndrivers/net/dsa/mt7530-mdio.c-263-\t\t.name = \"mt7530-mdio\",\ndrivers/net/dsa/mt7530-mdio.c:264:\t\t.of_match_table = mt7530_of_match,\ndrivers/net/dsa/mt7530-mdio.c-265-\t},\n"
} |
| 15/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8844 output: 43 thoughts: 209 Thoughts: **Analyzing the Feasibility of Fuzzing a Hardware Switch Driver** Okay, so I'm looking at the driver for this MediaTek switch – specifically the MT7621, MT7530, and MT7531 variants. My immediate concern is, can I even *reach* this code in a standard fuzzing setup? It relies on a specific device tree node, and more importantly, it's interacting with physical MDIO or MMIO registers. My initial gut feeling is a firm "no". QEMU, as far as I know, doesn't emulate these specific MediaTek switches, so straight away, I'm thinking a generic fuzzing environment like syzkaller is a dead end. I'm pretty sure that unless we're fuzzing directly on actual MediaTek hardware, or QEMU *somehow* adds support for these *specific* boards/switches (which is incredibly unlikely for generic fuzzing purposes), this code path is unreachable. Wait a second, syzkaller does have device tree injection capabilities! Maybe there's a glimmer of hope. But even with that, it usually *doesn't* emulate the hardware registers. So if the driver tries to read a hardware ID or interact with the hardware registers, we're likely going to get a failure or a crash because the hardware won't be there. Alright, let's back up a bit. First thing's first: I need to check if this driver *actually* reads hardware registers during the probe process. That's the make-or-break question right now. If it doesn't need to read any registers for basic setup, it might just *work*. But I have to verify that. |
| 16/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "mt7530_probe_common",
"PathPrefix": "drivers/net/dsa/mt7530.c"
}Results: {
"Output": "drivers/net/dsa/mt7530.c=3466=int\ndrivers/net/dsa/mt7530.c:3467:mt7530_probe_common(struct mt7530_priv *priv)\ndrivers/net/dsa/mt7530.c-3468-{\n--\ndrivers/net/dsa/mt7530.c-3497-}\ndrivers/net/dsa/mt7530.c:3498:EXPORT_SYMBOL_GPL(mt7530_probe_common);\ndrivers/net/dsa/mt7530.c-3499-\n"
} |
| 17/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9637 output: 43 thoughts: 18 Thoughts: Here's my attempt at summarizing the thought process, tailored for an expert audience: **Diving into the `mt7530_probe_common` Function** Okay, so I need to understand this `mt7530_probe_common` function. Given the naming convention, I'm guessing it's a common probe function specifically for the MediaTek MT7530 switch chip. That likely means it handles the initial setup and configuration tasks shared across various driver implementations for this hardware. I want to see what initialization the probe function handles. I'm probably going to be looking for things like: * **Resource allocation**: Checking how it handles IRQs, memory regions, and any other required resources using platform data. * **Hardware reset**: Does it perform any hardware reset sequence? This is a pretty standard part of probing. * **Register access**: I need to see how it sets up any base address registers to talk to the chip. Is it using MMIO or I2C/SPI? * **Clock setup**: This is very important. I expect there to be some clock initialization to make sure the switch has a stable clock before proceeding with anything else. * **Driver data structures**: Likely, there'll be initial allocation and setup of data structures specific to the mt7530. * **Interrupt Handling**: Setting up interrupt handlers, enabling interrupts on the switch. * **Phy configuration**: Possibly related to the internal PHY. I'm also curious about error handling. I hope to see robust error checks and reporting, especially around resource allocation. Ideally, it handles potential hardware failures gracefully, perhaps by falling back to a safe mode or returning an appropriate error code. Finally, I'll be looking for references to any other functions that are called, to see how the overall probe process is structured. |
| 18/2 | 2026/08/20 20:47 | tool | read-file |
0mArgs:{
"File": "drivers/net/dsa/mt7530.c",
"FirstLine": 3466,
"LineCount": 50
}Results: {
"Contents": "3466:\tint\n3467:\tmt7530_probe_common(struct mt7530_priv *priv)\n3468:\t{\n3469:\t\tstruct device *dev = priv-\u003edev;\n3470:\t\n3471:\t\tpriv-\u003eds = devm_kzalloc(dev, sizeof(*priv-\u003eds), GFP_KERNEL);\n3472:\t\tif (!priv-\u003eds)\n3473:\t\t\treturn -ENOMEM;\n3474:\t\n3475:\t\tpriv-\u003eds-\u003edev = dev;\n3476:\t\tpriv-\u003eds-\u003enum_ports = MT7530_NUM_PORTS;\n3477:\t\n3478:\t\t/* Get the hardware identifier from the devicetree node.\n3479:\t\t * We will need it for some of the clock and regulator setup.\n3480:\t\t */\n3481:\t\tpriv-\u003einfo = of_device_get_match_data(dev);\n3482:\t\tif (!priv-\u003einfo)\n3483:\t\t\treturn -EINVAL;\n3484:\t\n3485:\t\tpriv-\u003eid = priv-\u003einfo-\u003eid;\n3486:\t\tpriv-\u003edev = dev;\n3487:\t\tpriv-\u003eds-\u003epriv = priv;\n3488:\t\tpriv-\u003eds-\u003eops = \u0026mt7530_switch_ops;\n3489:\t\tpriv-\u003eds-\u003ephylink_mac_ops = \u0026mt753x_phylink_mac_ops;\n3490:\t\tmutex_init(\u0026priv-\u003ereg_mutex);\n3491:\t\tspin_lock_init(\u0026priv-\u003estats_lock);\n3492:\t\tINIT_DELAYED_WORK(\u0026priv-\u003estats_work, mt7530_stats_poll);\n3493:\t\n3494:\t\tdev_set_drvdata(dev, priv);\n3495:\t\n3496:\t\treturn 0;\n3497:\t}\n3498:\tEXPORT_SYMBOL_GPL(mt7530_probe_common);\n3499:\t\n3500:\tvoid\n3501:\tmt7530_remove_common(struct mt7530_priv *priv)\n3502:\t{\n3503:\t\tif (priv-\u003eirq_domain)\n3504:\t\t\tmt7530_free_mdio_irq(priv);\n3505:\t\n3506:\t\tdsa_unregister_switch(priv-\u003eds);\n3507:\t\n3508:\t\tmutex_destroy(\u0026priv-\u003ereg_mutex);\n3509:\t}\n3510:\tEXPORT_SYMBOL_GPL(mt7530_remove_common);\n3511:\t\n3512:\tMODULE_AUTHOR(\"Sean Wang \u003csean.wang@mediatek.com\u003e\");\n3513:\tMODULE_DESCRIPTION(\"Driver for Mediatek MT7530 Switch\");\n3514:\tMODULE_LICENSE(\"GPL\");\n"
} |
| 19/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 10864 output: 38 thoughts: 39 Thoughts: Okay, let me think this through... **Analyzing the mt7530 Driver Initialization** Hold on a second, that `mt7530_probe_common` function doesn't actually *register* the switch with the DSA subsystem. It just sets up the internal structures, initialising everything. It's the building blocks, not the finished product. Okay...so where is the registration happening? I need to find the call to `dsa_register_switch`. That's the crucial step. I can't be overlooking a misinterpretation of a function call. Need to trace this through, understand the control flow, find where the switch officially becomes known to the system. Where is that crucial registration occurring? Gotta trace the call stack now... |
| 20/2 | 2026/08/20 20:47 | tool | grepper |
0mError:no matches Args: {
"Expression": "dsa_register_switch",
"PathPrefix": "drivers/net/dsa/mt7530"
}Results: {
"error": "no matches"
} |
| 21/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 11114 output: 43 thoughts: 38 Thoughts: Okay, here's my interpretation of those thoughts, summarized from a first-person expert perspective: **Investigating Switch Driver Registration** Right, so I need to dig into how this switch driver is being registered. Since we're dealing with a MediaTek MT7530-based switch, I'm going to start by examining the core driver files. Specifically, I need to check `mt7530-mdio.c` and `mt7530-mmio.c`. The critical function I'm looking for in either or both of these files will be `dsa_register_switch`. That's the key to understanding how the switch itself is integrated into the DSA framework and initialized within the kernel. I'll be looking at the arguments it takes, the sequence of operations before and after it's called, and how it handles potential errors. This will help me understand the driver's overall initialization process. |
| 22/2 | 2026/08/20 20:47 | tool | grepper |
0mArgs:{
"Expression": "dsa_register_switch",
"PathPrefix": "drivers/net/dsa/mt7530-mdio.c"
}Results: {
"Output": "drivers/net/dsa/mt7530-mdio.c=155=mt7530_probe(struct mdio_device *mdiodev)\n--\ndrivers/net/dsa/mt7530-mdio.c-217-\ndrivers/net/dsa/mt7530-mdio.c:218:\treturn dsa_register_switch(priv-\u003eds);\ndrivers/net/dsa/mt7530-mdio.c-219-}\n"
} |
| 23/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 11531 output: 45 thoughts: 26 Thoughts: Here's my take on those thoughts, tailored for an expert audience: **Diving into the MT7530 Probe Function** Okay, time to get my hands dirty. I need to take a look at the `mt7530_probe` function. Specifically, I'm heading over to `mt7530-mdio.c`. This is where the initial bring-up logic resides, so I'm expecting to find the standard device registration, resource allocation, and likely some basic hardware initialization sequences. I'm keen to see how the MDIO bus is being handled – how they're accessing the PHY registers and setting up communication. Given the complexity of these switch chips, I'll be keeping an eye out for potential pitfalls related to clock configuration, interrupt handling, and any quirky MediaTek-specific register settings that might need careful attention. I want to see how the probe handles different revisions of the MT7530 as well, if they are making that kind of distinction within the code. Let's dig in and see what's what. |
| 24/2 | 2026/08/20 20:47 | tool | read-file |
0mArgs:{
"File": "drivers/net/dsa/mt7530-mdio.c",
"FirstLine": 155,
"LineCount": 65
}Results: {
"Contents": " 155:\tmt7530_probe(struct mdio_device *mdiodev)\n 156:\t{\n 157:\t\tstruct mt7530_priv *priv;\n 158:\t\tstruct device_node *dn;\n 159:\t\tint ret;\n 160:\t\n 161:\t\tdn = mdiodev-\u003edev.of_node;\n 162:\t\n 163:\t\tpriv = devm_kzalloc(\u0026mdiodev-\u003edev, sizeof(*priv), GFP_KERNEL);\n 164:\t\tif (!priv)\n 165:\t\t\treturn -ENOMEM;\n 166:\t\n 167:\t\tpriv-\u003ebus = mdiodev-\u003ebus;\n 168:\t\tpriv-\u003edev = \u0026mdiodev-\u003edev;\n 169:\t\tpriv-\u003emdiodev = mdiodev;\n 170:\t\n 171:\t\tret = mt7530_probe_common(priv);\n 172:\t\tif (ret)\n 173:\t\t\treturn ret;\n 174:\t\n 175:\t\t/* Use medatek,mcm property to distinguish hardware type that would\n 176:\t\t * cause a little bit differences on power-on sequence.\n 177:\t\t * Not MCM that indicates switch works as the remote standalone\n 178:\t\t * integrated circuit so the GPIO pin would be used to complete\n 179:\t\t * the reset, otherwise memory-mapped register accessing used\n 180:\t\t * through syscon provides in the case of MCM.\n 181:\t\t */\n 182:\t\tpriv-\u003emcm = of_property_read_bool(dn, \"mediatek,mcm\");\n 183:\t\tif (priv-\u003emcm) {\n 184:\t\t\tdev_info(\u0026mdiodev-\u003edev, \"MT7530 adapts as multi-chip module\\n\");\n 185:\t\n 186:\t\t\tpriv-\u003erstc = devm_reset_control_get(\u0026mdiodev-\u003edev, \"mcm\");\n 187:\t\t\tif (IS_ERR(priv-\u003erstc)) {\n 188:\t\t\t\tdev_err(\u0026mdiodev-\u003edev, \"Couldn't get our reset line\\n\");\n 189:\t\t\t\treturn PTR_ERR(priv-\u003erstc);\n 190:\t\t\t}\n 191:\t\t} else {\n 192:\t\t\tpriv-\u003ereset = devm_gpiod_get_optional(\u0026mdiodev-\u003edev, \"reset\",\n 193:\t\t\t\t\t\t\t GPIOD_OUT_LOW);\n 194:\t\t\tif (IS_ERR(priv-\u003ereset)) {\n 195:\t\t\t\tdev_err(\u0026mdiodev-\u003edev, \"Couldn't get our reset line\\n\");\n 196:\t\t\t\treturn PTR_ERR(priv-\u003ereset);\n 197:\t\t\t}\n 198:\t\t}\n 199:\t\n 200:\t\tif (priv-\u003eid == ID_MT7530) {\n 201:\t\t\tpriv-\u003ecore_pwr = devm_regulator_get(\u0026mdiodev-\u003edev, \"core\");\n 202:\t\t\tif (IS_ERR(priv-\u003ecore_pwr))\n 203:\t\t\t\treturn PTR_ERR(priv-\u003ecore_pwr);\n 204:\t\n 205:\t\t\tpriv-\u003eio_pwr = devm_regulator_get(\u0026mdiodev-\u003edev, \"io\");\n 206:\t\t\tif (IS_ERR(priv-\u003eio_pwr))\n 207:\t\t\t\treturn PTR_ERR(priv-\u003eio_pwr);\n 208:\t\t}\n 209:\t\n 210:\t\tpriv-\u003eregmap = devm_regmap_init(priv-\u003edev, \u0026mt7530_regmap_bus, priv,\n 211:\t\t\t\t\t\t\u0026regmap_config);\n 212:\t\tif (IS_ERR(priv-\u003eregmap))\n 213:\t\t\treturn PTR_ERR(priv-\u003eregmap);\n 214:\t\n 215:\t\tif (priv-\u003eid == ID_MT7531)\n 216:\t\t\tpriv-\u003ecreate_sgmii = mt7531_create_sgmii;\n 217:\t\n 218:\t\treturn dsa_register_switch(priv-\u003eds);\n 219:\t}\n"
} |
| 25/2 | 2026/08/20 20:47 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 12926 output: 29 thoughts: 258 Thoughts: **My Assessment of the MT7530 Driver and Syzkaller's Potential** Okay, so I'm thinking about how the `mt7530` switch gets initialized within the DSA framework. It seems like `mt7530_probe` is the starting point, registering the switch. Then, DSA, as expected, calls `mt7530_setup` through `priv->info->sw_setup(ds)`. That makes sense. Now, `mt7530_setup` relies on `mt7530_read` and `mt7530_write` to interact with the hardware, using the MDIO bus. My immediate concern is hardware presence. If the MDIO bus isn't connected to a real device, those read/write operations will either fail or, worse, return random garbage. That immediately makes me consider syzkaller. Does it have a mechanism to inject or emulate MDIO devices? I know syzkaller is fantastic for fuzzing and has deep knowledge of the kernel, but I don't recall seeing general MDIO device injection capabilities. It can inject USB, PCI, and some virtual net devices, but MDIO seems different. I thought I remembered something about loading device trees with `syz_mount_image` or a similar function. But no, syzkaller doesn't generally load arbitrary device trees on the fly to probe platform/MDIO drivers unless it's a very specific test case. Then, there are the syzkaller calls like `syz_genetlink_get_family_id`. I wonder if there are any syzkaller descriptions for MDIO or DSA that might shed some light on the subject. I need to determine if the `mt7530` driver or the MDIO bus itself is reachable through syzkaller. I should check if there are any syzkaller definitions related to those areas. |
| 26/2 | 2026/08/20 20:48 | tool | grepper |
0mError:no matches Args: {
"Expression": "mt7530",
"PathPrefix": "net/dsa"
}Results: {
"error": "no matches"
} |
| 27/2 | 2026/08/20 20:48 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 13632 output: 26 thoughts: 15 Thoughts: Here's my attempt at summarizing the thought process, tailored for an expert audience: **Checking for Existing Syzkaller Coverage of DSA** Okay, first things first, before I dive into any new DSA fuzzing adventures, I need to see where we stand with existing syzkaller coverage. I'm assuming there *should* be some existing descriptions, given the ubiquity of DSA implementations. But I need to be sure before I start from scratch. So, I'm thinking, "Let's check the syzkaller repository and any related fuzzing infrastructure. Let's start with a focused keyword search on "DSA" to see if any relevant syscall definitions, resource definitions, or even existing test cases jump out. I also need to consider other related keywords or abbreviations like "crypto", "security", or specific DSA-related functions, because syzkaller's coverage can sometimes be a bit fragmented. Maybe there's DSA implemented as a part of a larger crypto-module; I need to keep that in mind. Ultimately, this will give me a baseline for: 1) What has already been done, 2) Which DSA-related primitives are targeted, and 3) Whether the existing coverage is broad enough to be a solid starting point for a more focused fuzzing campaign. Depending on how much I find, this preliminary check is going to heavily influence the direction I take. |
| 28/2 | 2026/08/20 20:48 | tool | grepper |
0mArgs:{
"Expression": "dsa",
"PathPrefix": "net/dsa"
}Results: {
"Output": "\nFull output is too long, showing 500 out of 8104 lines.\nUse more precise expression if possible.\n\nnet/dsa/Makefile=6=endif\n--\nnet/dsa/Makefile-8-# the core\nnet/dsa/Makefile:9:obj-$(CONFIG_NET_DSA) += dsa_core.o\nnet/dsa/Makefile:10:dsa_core-y += \\\nnet/dsa/Makefile-11-\tconduit.o \\\nnet/dsa/Makefile-12-\tdevlink.o \\\nnet/dsa/Makefile:13:\tdsa.o \\\nnet/dsa/Makefile-14-\tnetlink.o \\\n--\nnet/dsa/Makefile=24=obj-$(CONFIG_NET_DSA_TAG_BRCM_COMMON) += tag_brcm.o\nnet/dsa/Makefile:25:obj-$(CONFIG_NET_DSA_TAG_DSA_COMMON) += tag_dsa.o\nnet/dsa/Makefile-26-obj-$(CONFIG_NET_DSA_TAG_GSWIP) += tag_gswip.o\n--\nnet/dsa/conduit.c-11-#include \u003clinux/netlink.h\u003e\nnet/dsa/conduit.c:12:#include \u003cnet/dsa.h\u003e\nnet/dsa/conduit.c-13-#include \u003cnet/netdev_lock.h\u003e\n--\nnet/dsa/conduit.c-15-#include \"conduit.h\"\nnet/dsa/conduit.c:16:#include \"dsa.h\"\nnet/dsa/conduit.c-17-#include \"port.h\"\n--\nnet/dsa/conduit.c-19-\nnet/dsa/conduit.c:20:static int dsa_conduit_get_regs_len(struct net_device *dev)\nnet/dsa/conduit.c-21-{\nnet/dsa/conduit.c:22:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-23-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:24:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c-25-\tint port = cpu_dp-\u003eindex;\n--\nnet/dsa/conduit.c-48-\nnet/dsa/conduit.c:49:static void dsa_conduit_get_regs(struct net_device *dev,\nnet/dsa/conduit.c-50-\t\t\t\t struct ethtool_regs *regs, void *data)\nnet/dsa/conduit.c-51-{\nnet/dsa/conduit.c:52:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-53-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:54:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c-55-\tstruct ethtool_drvinfo *cpu_info;\n--\nnet/dsa/conduit.c-69-\tcpu_info = (struct ethtool_drvinfo *)data;\nnet/dsa/conduit.c:70:\tstrscpy(cpu_info-\u003edriver, \"dsa\", sizeof(cpu_info-\u003edriver));\nnet/dsa/conduit.c-71-\tdata += sizeof(*cpu_info);\n--\nnet/dsa/conduit.c-83-\nnet/dsa/conduit.c:84:static ssize_t dsa_conduit_append_port_stats(struct dsa_switch *ds, int port,\nnet/dsa/conduit.c-85-\t\t\t\t\t u64 *data, size_t start)\n--\nnet/dsa/conduit.c-101-\nnet/dsa/conduit.c:102:static void dsa_conduit_get_ethtool_stats(struct net_device *dev,\nnet/dsa/conduit.c-103-\t\t\t\t\t struct ethtool_stats *stats,\n--\nnet/dsa/conduit.c-105-{\nnet/dsa/conduit.c:106:\tstruct dsa_port *dp, *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-107-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:108:\tstruct dsa_switch_tree *dst = cpu_dp-\u003edst;\nnet/dsa/conduit.c-109-\tint count, mcount = 0;\n--\nnet/dsa/conduit.c-116-\tlist_for_each_entry(dp, \u0026dst-\u003eports, list) {\nnet/dsa/conduit.c:117:\t\tif (!dsa_port_is_dsa(dp) \u0026\u0026 !dsa_port_is_cpu(dp))\nnet/dsa/conduit.c-118-\t\t\tcontinue;\nnet/dsa/conduit.c-119-\nnet/dsa/conduit.c:120:\t\tcount = dsa_conduit_append_port_stats(dp-\u003eds, dp-\u003eindex,\nnet/dsa/conduit.c-121-\t\t\t\t\t\t data, mcount);\n--\nnet/dsa/conduit.c-128-\nnet/dsa/conduit.c:129:static void dsa_conduit_get_ethtool_phy_stats(struct net_device *dev,\nnet/dsa/conduit.c-130-\t\t\t\t\t struct ethtool_stats *stats,\n--\nnet/dsa/conduit.c-132-{\nnet/dsa/conduit.c:133:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-134-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:135:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c-136-\tint port = cpu_dp-\u003eindex;\n--\nnet/dsa/conduit.c-154-\nnet/dsa/conduit.c:155:static void dsa_conduit_append_port_sset_count(struct dsa_switch *ds, int port,\nnet/dsa/conduit.c-156-\t\t\t\t\t int sset, int *count)\n--\nnet/dsa/conduit.c-161-\nnet/dsa/conduit.c:162:static int dsa_conduit_get_sset_count(struct net_device *dev, int sset)\nnet/dsa/conduit.c-163-{\nnet/dsa/conduit.c:164:\tstruct dsa_port *dp, *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-165-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:166:\tstruct dsa_switch_tree *dst = cpu_dp-\u003edst;\nnet/dsa/conduit.c-167-\tint count = 0;\n--\nnet/dsa/conduit.c-178-\tlist_for_each_entry(dp, \u0026dst-\u003eports, list) {\nnet/dsa/conduit.c:179:\t\tif (!dsa_port_is_dsa(dp) \u0026\u0026 !dsa_port_is_cpu(dp))\nnet/dsa/conduit.c-180-\t\t\tcontinue;\nnet/dsa/conduit.c-181-\nnet/dsa/conduit.c:182:\t\tdsa_conduit_append_port_sset_count(dp-\u003eds, dp-\u003eindex, sset,\nnet/dsa/conduit.c-183-\t\t\t\t\t\t \u0026count);\n--\nnet/dsa/conduit.c-188-\nnet/dsa/conduit.c:189:static ssize_t dsa_conduit_append_port_strings(struct dsa_switch *ds, int port,\nnet/dsa/conduit.c-190-\t\t\t\t\t u32 stringset, u8 *data,\n--\nnet/dsa/conduit.c-221-\nnet/dsa/conduit.c:222:static void dsa_conduit_get_strings(struct net_device *dev, u32 stringset,\nnet/dsa/conduit.c-223-\t\t\t\t u8 *data)\nnet/dsa/conduit.c-224-{\nnet/dsa/conduit.c:225:\tstruct dsa_port *dp, *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-226-\tconst struct ethtool_ops *ops = cpu_dp-\u003eorig_ethtool_ops;\nnet/dsa/conduit.c:227:\tstruct dsa_switch_tree *dst = cpu_dp-\u003edst;\nnet/dsa/conduit.c-228-\tint count, mcount = 0;\n--\nnet/dsa/conduit.c-244-\tlist_for_each_entry(dp, \u0026dst-\u003eports, list) {\nnet/dsa/conduit.c:245:\t\tif (!dsa_port_is_dsa(dp) \u0026\u0026 !dsa_port_is_cpu(dp))\nnet/dsa/conduit.c-246-\t\t\tcontinue;\nnet/dsa/conduit.c-247-\nnet/dsa/conduit.c:248:\t\tcount = dsa_conduit_append_port_strings(dp-\u003eds, dp-\u003eindex,\nnet/dsa/conduit.c-249-\t\t\t\t\t\t\tstringset, data,\n--\nnet/dsa/conduit.c-260- */\nnet/dsa/conduit.c:261:int __dsa_conduit_hwtstamp_validate(struct net_device *dev,\nnet/dsa/conduit.c-262-\t\t\t\t const struct kernel_hwtstamp_config *config,\n--\nnet/dsa/conduit.c-264-{\nnet/dsa/conduit.c:265:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c:266:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c:267:\tstruct dsa_switch_tree *dst;\nnet/dsa/conduit.c:268:\tstruct dsa_port *dp;\nnet/dsa/conduit.c-269-\n--\nnet/dsa/conduit.c-272-\tlist_for_each_entry(dp, \u0026dst-\u003eports, list) {\nnet/dsa/conduit.c:273:\t\tif (dsa_port_supports_hwtstamp(dp)) {\nnet/dsa/conduit.c-274-\t\t\tNL_SET_ERR_MSG(extack,\n--\nnet/dsa/conduit.c-282-\nnet/dsa/conduit.c:283:static int dsa_conduit_ethtool_setup(struct net_device *dev)\nnet/dsa/conduit.c-284-{\nnet/dsa/conduit.c:285:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c:286:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c-287-\tstruct ethtool_ops *ops;\n--\nnet/dsa/conduit.c-299-\nnet/dsa/conduit.c:300:\tops-\u003eget_regs_len = dsa_conduit_get_regs_len;\nnet/dsa/conduit.c:301:\tops-\u003eget_regs = dsa_conduit_get_regs;\nnet/dsa/conduit.c:302:\tops-\u003eget_sset_count = dsa_conduit_get_sset_count;\nnet/dsa/conduit.c:303:\tops-\u003eget_ethtool_stats = dsa_conduit_get_ethtool_stats;\nnet/dsa/conduit.c:304:\tops-\u003eget_strings = dsa_conduit_get_strings;\nnet/dsa/conduit.c:305:\tops-\u003eget_ethtool_phy_stats = dsa_conduit_get_ethtool_phy_stats;\nnet/dsa/conduit.c-306-\n--\nnet/dsa/conduit.c-311-\nnet/dsa/conduit.c:312:static void dsa_conduit_ethtool_teardown(struct net_device *dev)\nnet/dsa/conduit.c-313-{\nnet/dsa/conduit.c:314:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-315-\n--\nnet/dsa/conduit.c-327- */\nnet/dsa/conduit.c:328:static void dsa_conduit_set_promiscuity(struct net_device *dev, int inc)\nnet/dsa/conduit.c-329-{\nnet/dsa/conduit.c:330:\tconst struct dsa_device_ops *ops = dev-\u003edsa_ptr-\u003etag_ops;\nnet/dsa/conduit.c-331-\n--\nnet/dsa/conduit.c=340=static ssize_t tagging_show(struct device *d, struct device_attribute *attr,\n--\nnet/dsa/conduit.c-343-\tstruct net_device *dev = to_net_dev(d);\nnet/dsa/conduit.c:344:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-345-\nnet/dsa/conduit.c-346-\treturn sysfs_emit(buf, \"%s\\n\",\nnet/dsa/conduit.c:347:\t\t dsa_tag_protocol_to_str(cpu_dp-\u003etag_ops));\nnet/dsa/conduit.c-348-}\n--\nnet/dsa/conduit.c=350=static ssize_t tagging_store(struct device *d, struct device_attribute *attr,\n--\nnet/dsa/conduit.c-352-{\nnet/dsa/conduit.c:353:\tconst struct dsa_device_ops *new_tag_ops, *old_tag_ops;\nnet/dsa/conduit.c-354-\tconst char *end = strchrnul(buf, '\\n'), *name;\nnet/dsa/conduit.c-355-\tstruct net_device *dev = to_net_dev(d);\nnet/dsa/conduit.c:356:\tstruct dsa_port *cpu_dp = dev-\u003edsa_ptr;\nnet/dsa/conduit.c-357-\tsize_t len = end - buf;\n--\nnet/dsa/conduit.c-368-\told_tag_ops = cpu_dp-\u003etag_ops;\nnet/dsa/conduit.c:369:\tnew_tag_ops = dsa_tag_driver_get_by_name(name);\nnet/dsa/conduit.c-370-\tkfree(name);\n--\nnet/dsa/conduit.c-380-\nnet/dsa/conduit.c:381:\terr = dsa_tree_change_tag_proto(cpu_dp-\u003eds-\u003edst, new_tag_ops,\nnet/dsa/conduit.c-382-\t\t\t\t\told_tag_ops);\n--\nnet/dsa/conduit.c-386-\t\t */\nnet/dsa/conduit.c:387:\t\tdsa_tag_driver_put(new_tag_ops);\nnet/dsa/conduit.c-388-\t\treturn err;\n--\nnet/dsa/conduit.c-393-out:\nnet/dsa/conduit.c:394:\tdsa_tag_driver_put(old_tag_ops);\nnet/dsa/conduit.c-395-\treturn count;\n--\nnet/dsa/conduit.c=397=static DEVICE_ATTR_RW(tagging);\nnet/dsa/conduit.c-398-\nnet/dsa/conduit.c:399:static struct attribute *dsa_user_attrs[] = {\nnet/dsa/conduit.c-400-\t\u0026dev_attr_tagging.attr,\n--\nnet/dsa/conduit.c-403-\nnet/dsa/conduit.c:404:static const struct attribute_group dsa_group = {\nnet/dsa/conduit.c:405:\t.name\t= \"dsa\",\nnet/dsa/conduit.c:406:\t.attrs\t= dsa_user_attrs,\nnet/dsa/conduit.c-407-};\nnet/dsa/conduit.c-408-\nnet/dsa/conduit.c:409:static void dsa_conduit_reset_mtu(struct net_device *dev)\nnet/dsa/conduit.c-410-{\n--\nnet/dsa/conduit.c-418-\nnet/dsa/conduit.c:419:int dsa_conduit_setup(struct net_device *dev, struct dsa_port *cpu_dp)\nnet/dsa/conduit.c-420-{\nnet/dsa/conduit.c:421:\tconst struct dsa_device_ops *tag_ops = cpu_dp-\u003etag_ops;\nnet/dsa/conduit.c:422:\tstruct dsa_switch *ds = cpu_dp-\u003eds;\nnet/dsa/conduit.c-423-\tstruct device_link *consumer_link;\n--\nnet/dsa/conduit.c-425-\nnet/dsa/conduit.c:426:\tmtu = ETH_DATA_LEN + dsa_tag_protocol_overhead(tag_ops);\nnet/dsa/conduit.c-427-\n--\nnet/dsa/conduit.c-438-\t/* The switch driver may not implement -\u003eport_change_mtu(), case in\nnet/dsa/conduit.c:439:\t * which dsa_user_change_mtu() will not update the conduit MTU either,\nnet/dsa/conduit.c-440-\t * so we need to do that here.\n--\nnet/dsa/conduit.c-452-\nnet/dsa/conduit.c:453:\tdev-\u003edsa_ptr = cpu_dp;\nnet/dsa/conduit.c-454-\nnet/dsa/conduit.c:455:\tdsa_conduit_set_promiscuity(dev, 1);\nnet/dsa/conduit.c-456-\nnet/dsa/conduit.c:457:\tret = dsa_conduit_ethtool_setup(dev);\nnet/dsa/conduit.c-458-\tif (ret)\n--\nnet/dsa/conduit.c-460-\nnet/dsa/conduit.c:461:\tret = sysfs_create_group(\u0026dev-\u003edev.kobj, \u0026dsa_group);\nnet/dsa/conduit.c-462-\tif (ret)\n--\nnet/dsa/conduit.c-467-out_err_ethtool_teardown:\nnet/dsa/conduit.c:468:\tdsa_conduit_ethtool_teardown(dev);\nnet/dsa/conduit.c-469-out_err_reset_promisc:\nnet/dsa/conduit.c:470:\tdsa_conduit_set_promiscuity(dev, -1);\nnet/dsa/conduit.c-471-\treturn ret;\n--\nnet/dsa/conduit.c-473-\nnet/dsa/conduit.c:474:void dsa_conduit_teardown(struct net_device *dev)\nnet/dsa/conduit.c-475-{\nnet/dsa/conduit.c:476:\tsysfs_remove_group(\u0026dev-\u003edev.kobj, \u0026dsa_group);\nnet/dsa/conduit.c:477:\tdsa_conduit_ethtool_teardown(dev);\nnet/dsa/conduit.c:478:\tdsa_conduit_reset_mtu(dev);\nnet/dsa/conduit.c:479:\tdsa_conduit_set_promiscuity(dev, -1);\nnet/dsa/conduit.c-480-\nnet/dsa/conduit.c:481:\tdev-\u003edsa_ptr = NULL;\nnet/dsa/conduit.c-482-\n--\nnet/dsa/conduit.c-489-\nnet/dsa/conduit.c:490:int dsa_conduit_lag_setup(struct net_device *lag_dev, struct dsa_port *cpu_dp,\nnet/dsa/conduit.c-491-\t\t\t struct netdev_lag_upper_info *uinfo,\n--\nnet/dsa/conduit.c-496-\nnet/dsa/conduit.c:497:\tif (!netdev_uses_dsa(lag_dev)) {\nnet/dsa/conduit.c:498:\t\terr = dsa_conduit_setup(lag_dev, cpu_dp);\nnet/dsa/conduit.c-499-\t\tif (err)\n--\nnet/dsa/conduit.c-504-\nnet/dsa/conduit.c:505:\terr = dsa_port_lag_join(cpu_dp, lag_dev, uinfo, extack);\nnet/dsa/conduit.c-506-\tif (err) {\n--\nnet/dsa/conduit.c-514-\tif (conduit_setup)\nnet/dsa/conduit.c:515:\t\tdsa_conduit_teardown(lag_dev);\nnet/dsa/conduit.c-516-\treturn err;\n--\nnet/dsa/conduit.c-521- */\nnet/dsa/conduit.c:522:void dsa_conduit_lag_teardown(struct net_device *lag_dev,\nnet/dsa/conduit.c:523:\t\t\t struct dsa_port *cpu_dp)\nnet/dsa/conduit.c-524-{\n--\nnet/dsa/conduit.c-527-\nnet/dsa/conduit.c:528:\tdsa_port_lag_leave(cpu_dp, lag_dev);\nnet/dsa/conduit.c-529-\nnet/dsa/conduit.c-530-\tnetdev_for_each_upper_dev_rcu(lag_dev, upper, iter)\nnet/dsa/conduit.c:531:\t\tif (dsa_user_dev_check(upper))\nnet/dsa/conduit.c-532-\t\t\treturn;\nnet/dsa/conduit.c-533-\nnet/dsa/conduit.c:534:\tdsa_conduit_teardown(lag_dev);\nnet/dsa/conduit.c-535-}\n--\nnet/dsa/conduit.h-5-\nnet/dsa/conduit.h:6:struct dsa_port;\nnet/dsa/conduit.h-7-struct net_device;\n--\nnet/dsa/conduit.h=9=struct netlink_ext_ack;\nnet/dsa/conduit.h-10-\nnet/dsa/conduit.h:11:int dsa_conduit_setup(struct net_device *dev, struct dsa_port *cpu_dp);\nnet/dsa/conduit.h:12:void dsa_conduit_teardown(struct net_device *dev);\nnet/dsa/conduit.h:13:int dsa_conduit_lag_setup(struct net_device *lag_dev, struct dsa_port *cpu_dp,\nnet/dsa/conduit.h-14-\t\t\t struct netdev_lag_upper_info *uinfo,\nnet/dsa/conduit.h-15-\t\t\t struct netlink_ext_ack *extack);\nnet/dsa/conduit.h:16:void dsa_conduit_lag_teardown(struct net_device *lag_dev,\nnet/dsa/conduit.h:17:\t\t\t struct dsa_port *cpu_dp);\nnet/dsa/conduit.h:18:int __dsa_conduit_hwtstamp_validate(struct net_device *dev,\nnet/dsa/conduit.h-19-\t\t\t\t const struct kernel_hwtstamp_config *config,\n--\nnet/dsa/devlink.c-5-\nnet/dsa/devlink.c:6:#include \u003cnet/dsa.h\u003e\nnet/dsa/devlink.c-7-#include \u003cnet/devlink.h\u003e\n--\nnet/dsa/devlink.c-10-\nnet/dsa/devlink.c:11:static int dsa_devlink_info_get(struct devlink *dl,\nnet/dsa/devlink.c-12-\t\t\t\tstruct devlink_info_req *req,\n--\nnet/dsa/devlink.c-14-{\nnet/dsa/devlink.c:15:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-16-\n--\nnet/dsa/devlink.c-22-\nnet/dsa/devlink.c:23:static int dsa_devlink_sb_pool_get(struct devlink *dl,\nnet/dsa/devlink.c-24-\t\t\t\t unsigned int sb_index, u16 pool_index,\n--\nnet/dsa/devlink.c-26-{\nnet/dsa/devlink.c:27:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-28-\n--\nnet/dsa/devlink.c-35-\nnet/dsa/devlink.c:36:static int dsa_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index,\nnet/dsa/devlink.c-37-\t\t\t\t u16 pool_index, u32 size,\n--\nnet/dsa/devlink.c-40-{\nnet/dsa/devlink.c:41:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-42-\n--\nnet/dsa/devlink.c-49-\nnet/dsa/devlink.c:50:static int dsa_devlink_sb_port_pool_get(struct devlink_port *dlp,\nnet/dsa/devlink.c-51-\t\t\t\t\tunsigned int sb_index, u16 pool_index,\n--\nnet/dsa/devlink.c-53-{\nnet/dsa/devlink.c:54:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:55:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-56-\n--\nnet/dsa/devlink.c-63-\nnet/dsa/devlink.c:64:static int dsa_devlink_sb_port_pool_set(struct devlink_port *dlp,\nnet/dsa/devlink.c-65-\t\t\t\t\tunsigned int sb_index, u16 pool_index,\n--\nnet/dsa/devlink.c-68-{\nnet/dsa/devlink.c:69:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:70:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-71-\n--\nnet/dsa/devlink.c=79=static int\nnet/dsa/devlink.c:80:dsa_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp,\nnet/dsa/devlink.c-81-\t\t\t\tunsigned int sb_index, u16 tc_index,\n--\nnet/dsa/devlink.c-84-{\nnet/dsa/devlink.c:85:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:86:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-87-\n--\nnet/dsa/devlink.c=96=static int\nnet/dsa/devlink.c:97:dsa_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp,\nnet/dsa/devlink.c-98-\t\t\t\tunsigned int sb_index, u16 tc_index,\n--\nnet/dsa/devlink.c-102-{\nnet/dsa/devlink.c:103:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:104:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-105-\n--\nnet/dsa/devlink.c-114-\nnet/dsa/devlink.c:115:static int dsa_devlink_sb_occ_snapshot(struct devlink *dl,\nnet/dsa/devlink.c-116-\t\t\t\t unsigned int sb_index)\nnet/dsa/devlink.c-117-{\nnet/dsa/devlink.c:118:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-119-\n--\nnet/dsa/devlink.c-125-\nnet/dsa/devlink.c:126:static int dsa_devlink_sb_occ_max_clear(struct devlink *dl,\nnet/dsa/devlink.c-127-\t\t\t\t\tunsigned int sb_index)\nnet/dsa/devlink.c-128-{\nnet/dsa/devlink.c:129:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-130-\n--\nnet/dsa/devlink.c-136-\nnet/dsa/devlink.c:137:static int dsa_devlink_sb_occ_port_pool_get(struct devlink_port *dlp,\nnet/dsa/devlink.c-138-\t\t\t\t\t unsigned int sb_index,\n--\nnet/dsa/devlink.c-141-{\nnet/dsa/devlink.c:142:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:143:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-144-\n--\nnet/dsa/devlink.c=152=static int\nnet/dsa/devlink.c:153:dsa_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp,\nnet/dsa/devlink.c-154-\t\t\t\t unsigned int sb_index, u16 tc_index,\n--\nnet/dsa/devlink.c-157-{\nnet/dsa/devlink.c:158:\tstruct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);\nnet/dsa/devlink.c:159:\tint port = dsa_devlink_port_to_port(dlp);\nnet/dsa/devlink.c-160-\n--\nnet/dsa/devlink.c-169-\nnet/dsa/devlink.c:170:static const struct devlink_ops dsa_devlink_ops = {\nnet/dsa/devlink.c:171:\t.info_get\t\t\t= dsa_devlink_info_get,\nnet/dsa/devlink.c:172:\t.sb_pool_get\t\t\t= dsa_devlink_sb_pool_get,\nnet/dsa/devlink.c:173:\t.sb_pool_set\t\t\t= dsa_devlink_sb_pool_set,\nnet/dsa/devlink.c:174:\t.sb_port_pool_get\t\t= dsa_devlink_sb_port_pool_get,\nnet/dsa/devlink.c:175:\t.sb_port_pool_set\t\t= dsa_devlink_sb_port_pool_set,\nnet/dsa/devlink.c:176:\t.sb_tc_pool_bind_get\t\t= dsa_devlink_sb_tc_pool_bind_get,\nnet/dsa/devlink.c:177:\t.sb_tc_pool_bind_set\t\t= dsa_devlink_sb_tc_pool_bind_set,\nnet/dsa/devlink.c:178:\t.sb_occ_snapshot\t\t= dsa_devlink_sb_occ_snapshot,\nnet/dsa/devlink.c:179:\t.sb_occ_max_clear\t\t= dsa_devlink_sb_occ_max_clear,\nnet/dsa/devlink.c:180:\t.sb_occ_port_pool_get\t\t= dsa_devlink_sb_occ_port_pool_get,\nnet/dsa/devlink.c:181:\t.sb_occ_tc_port_bind_get\t= dsa_devlink_sb_occ_tc_port_bind_get,\nnet/dsa/devlink.c-182-};\nnet/dsa/devlink.c-183-\nnet/dsa/devlink.c:184:int dsa_devlink_param_get(struct devlink *dl, u32 id,\nnet/dsa/devlink.c-185-\t\t\t struct devlink_param_gset_ctx *ctx,\n--\nnet/dsa/devlink.c-187-{\nnet/dsa/devlink.c:188:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-189-\n--\nnet/dsa/devlink.c-194-}\nnet/dsa/devlink.c:195:EXPORT_SYMBOL_GPL(dsa_devlink_param_get);\nnet/dsa/devlink.c-196-\nnet/dsa/devlink.c:197:int dsa_devlink_param_set(struct devlink *dl, u32 id,\nnet/dsa/devlink.c-198-\t\t\t struct devlink_param_gset_ctx *ctx,\n--\nnet/dsa/devlink.c-200-{\nnet/dsa/devlink.c:201:\tstruct dsa_switch *ds = dsa_devlink_to_ds(dl);\nnet/dsa/devlink.c-202-\n--\nnet/dsa/devlink.c-207-}\nnet/dsa/devlink.c:208:EXPORT_SYMBOL_GPL(dsa_devlink_param_set);\nnet/dsa/devlink.c-209-\nnet/dsa/devlink.c:210:int dsa_devlink_params_register(struct dsa_switch *ds,\nnet/dsa/devlink.c-211-\t\t\t\tconst struct devlink_param *params,\n--\nnet/dsa/devlink.c-215-}\nnet/dsa/devlink.c:216:EXPORT_SYMBOL_GPL(dsa_devlink_params_register);\nnet/dsa/devlink.c-217-\nnet/dsa/devlink.c:218:void dsa_devlink_params_unregister(struct dsa_switch *ds,\nnet/dsa/devlink.c-219-\t\t\t\t const struct devlink_param *params,\n--\nnet/dsa/devlink.c-223-}\nnet/dsa/devlink.c:224:EXPORT_SYMBOL_GPL(dsa_devlink_params_unregister);\nnet/dsa/devlink.c-225-\nnet/dsa/devlink.c:226:int dsa_devlink_resource_register(struct dsa_switch *ds,\nnet/dsa/devlink.c-227-\t\t\t\t const char *resource_name,\n--\nnet/dsa/devlink.c-242-}\nnet/dsa/devlink.c:243:EXPORT_SYMBOL_GPL(dsa_devlink_resource_register);\nnet/dsa/devlink.c-244-\nnet/dsa/devlink.c:245:void dsa_devlink_resources_unregister(struct dsa_switch *ds)\nnet/dsa/devlink.c-246-{\n--\nnet/dsa/devlink.c-248-}\nnet/dsa/devlink.c:249:EXPORT_SYMBOL_GPL(dsa_devlink_resources_unregister);\nnet/dsa/devlink.c-250-\nnet/dsa/devlink.c:251:void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds,\nnet/dsa/devlink.c-252-\t\t\t\t\t u64 resource_id,\n--\nnet/dsa/devlink.c-260-}\nnet/dsa/devlink.c:261:EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_register);\nnet/dsa/devlink.c-262-\nnet/dsa/devlink.c:263:void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,\nnet/dsa/devlink.c-264-\t\t\t\t\t u64 resource_id)\n--\nnet/dsa/devlink.c-269-}\nnet/dsa/devlink.c:270:EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_unregister);\nnet/dsa/devlink.c-271-\nnet/dsa/devlink.c=272=struct devlink_region *\nnet/dsa/devlink.c:273:dsa_devlink_region_create(struct dsa_switch *ds,\nnet/dsa/devlink.c-274-\t\t\t const struct devlink_region_ops *ops,\n--\nnet/dsa/devlink.c-279-}\nnet/dsa/devlink.c:280:EXPORT_SYMBOL_GPL(dsa_devlink_region_create);\nnet/dsa/devlink.c-281-\nnet/dsa/devlink.c=282=struct devlink_region *\nnet/dsa/devlink.c:283:dsa_devlink_port_region_create(struct dsa_switch *ds,\nnet/dsa/devlink.c-284-\t\t\t int port,\n--\nnet/dsa/devlink.c-287-{\nnet/dsa/devlink.c:288:\tstruct dsa_port *dp = dsa_to_port(ds, port);\nnet/dsa/devlink.c-289-\n--\nnet/dsa/devlink.c-293-}\nnet/dsa/devlink.c:294:EXPORT_SYMBOL_GPL(dsa_devlink_port_region_create);\nnet/dsa/devlink.c-295-\nnet/dsa/devlink.c:296:void dsa_devlink_region_destroy(struct devlink_region *region)\nnet/dsa/devlink.c-297-{\n--\nnet/dsa/devlink.c-299-}\nnet/dsa/devlink.c:300:EXPORT_SYMBOL_GPL(dsa_devlink_region_destroy);\nnet/dsa/devlink.c-301-\nnet/dsa/devlink.c:302:int dsa_port_devlink_setup(struct dsa_port *dp)\nnet/dsa/devlink.c-303-{\nnet/dsa/devlink.c-304-\tstruct devlink_port *dlp = \u0026dp-\u003edevlink_port;\nnet/dsa/devlink.c:305:\tstruct dsa_switch_tree *dst = dp-\u003eds-\u003edst;\nnet/dsa/devlink.c-306-\tstruct devlink_port_attrs attrs = {};\nnet/dsa/devlink.c-307-\tstruct devlink *dl = dp-\u003eds-\u003edevlink;\nnet/dsa/devlink.c:308:\tstruct dsa_switch *ds = dp-\u003eds;\nnet/dsa/devlink.c-309-\tconst unsigned char *id;\n--\nnet/dsa/devlink.c-354-\nnet/dsa/devlink.c:355:void dsa_port_devlink_teardown(struct dsa_port *dp)\nnet/dsa/devlink.c-356-{\nnet/dsa/devlink.c-357-\tstruct devlink_port *dlp = \u0026dp-\u003edevlink_port;\n\n"
} |
| 29/2 | 2026/08/20 20:48 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 24840 output: 28 thoughts: 146 Thoughts: **My Line of Reasoning** Okay, deep breath. Let's break this down. DSA – that's a *core* subsystem. Important stuff. But specifically, we're talking about the `mt7530` driver, which, if memory serves, is MediaTek specific. A quick mental check... yeah, that rings true. Now, the problem. I can't fuzz it unless I can get it probed in a virtualized environment. That's the first hurdle. Can I even get this thing running in QEMU? ...No, not directly. QEMU doesn't seem to have out-of-the-box support for the MediaTek MT7530 or MT7621 switches. Damn. Right, so that means I'm going to have to do something else. Okay, let's step back. Syzkaller... it's powerful, but it's not a magic bullet. It doesn't allow arbitrary hardware injection via device tree nodes unless there's explicit support. So, my next logical step is to see if I can even begin to inject this device. The first thing I'll check is the syzkaller descriptions. Do they have anything for `mediatek,mt7621` or `mediatek,mt7530`? I'll check and see. Maybe there is something already set up! |
| 30/2 | 2026/08/20 20:48 | tool | grepper |
0mArgs:{
"Expression": "mediatek,mt7621",
"PathPrefix": ""
}Results: {
"Output": "Documentation/devicetree/bindings/bus/palmbus.yaml=56=examples:\n--\nDocumentation/devicetree/bindings/bus/palmbus.yaml-69- #interrupt-cells = \u003c2\u003e;\nDocumentation/devicetree/bindings/bus/palmbus.yaml:70: compatible = \"mediatek,mt7621-gpio\";\nDocumentation/devicetree/bindings/bus/palmbus.yaml-71- gpio-controller;\n--\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-3----\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml:4:$id: http://devicetree.org/schemas/clock/mediatek,mt7621-sysc.yaml#\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml=30=properties:\n--\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-32- items:\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml:33: - const: mediatek,mt7621-sysc\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-34- - const: syscon\n--\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml=67=examples:\n--\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-71- sysc: sysc@0 {\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml:72: compatible = \"mediatek,mt7621-sysc\", \"syscon\";\nDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml-73- reg = \u003c0x0 0x100\u003e;\n--\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-3----\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml:4:$id: http://devicetree.org/schemas/gpio/mediatek,mt7621-gpio.yaml#\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml=19=properties:\n--\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-23- compatible:\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml:24: const: mediatek,mt7621-gpio\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-25-\n--\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml=55=examples:\n--\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-60- gpio@600 {\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml:61: compatible = \"mediatek,mt7621-gpio\";\nDocumentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml-62- reg = \u003c0x600 0x100\u003e;\n--\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-3----\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml:4:$id: http://devicetree.org/schemas/i2c/mediatek,mt7621-i2c.yaml#\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml=15=properties:\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-16- compatible:\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml:17: const: mediatek,mt7621-i2c\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-18-\n--\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml=43=examples:\n--\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-48- i2c: i2c@900 {\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml:49: compatible = \"mediatek,mt7621-i2c\";\nDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml-50- reg = \u003c0x900 0x100\u003e;\n--\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-3----\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml:4:$id: http://devicetree.org/schemas/memory-controllers/mediatek,mt7621-memc.yaml#\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml=12=properties:\n--\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-14- items:\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml:15: - const: mediatek,mt7621-memc\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-16- - const: syscon\n--\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml=27=examples:\n--\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-29- memory-controller@5000 {\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml:30: compatible = \"mediatek,mt7621-memc\", \"syscon\";\nDocumentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml-31- reg = \u003c0x5000 0x1000\u003e;\n--\nDocumentation/devicetree/bindings/mips/ralink.yaml=15=properties:\n--\nDocumentation/devicetree/bindings/mips/ralink.yaml-83- - tplink,hc220-g5-v1\nDocumentation/devicetree/bindings/mips/ralink.yaml:84: - const: mediatek,mt7621-soc\nDocumentation/devicetree/bindings/mips/ralink.yaml-85-\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml=76=properties:\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-88- Multi-chip module MT7530 in MT7621AT, MT7621DAT and MT7621ST SoCs\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:89: const: mediatek,mt7621\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-90-\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml=269=allOf:\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-307- compatible:\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:308: const: mediatek,mt7621\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-309- then:\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml=330=examples:\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-528- switch@1f {\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:529: compatible = \"mediatek,mt7621\";\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-530- reg = \u003c0x1f\u003e;\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-614- switch@1f {\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:615: compatible = \"mediatek,mt7621\";\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-616- reg = \u003c0x1f\u003e;\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-704- switch@1f {\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:705: compatible = \"mediatek,mt7621\";\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-706- reg = \u003c0x1f\u003e;\n--\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-784- switch@1f {\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml:785: compatible = \"mediatek,mt7621\";\nDocumentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml-786- reg = \u003c0x1f\u003e;\n--\nDocumentation/devicetree/bindings/net/mediatek,net.yaml=17=properties:\n--\nDocumentation/devicetree/bindings/net/mediatek,net.yaml-21- - mediatek,mt7623-eth\nDocumentation/devicetree/bindings/net/mediatek,net.yaml:22: - mediatek,mt7621-eth\nDocumentation/devicetree/bindings/net/mediatek,net.yaml-23- - mediatek,mt7622-eth\n--\nDocumentation/devicetree/bindings/net/mediatek,net.yaml=138=allOf:\n--\nDocumentation/devicetree/bindings/net/mediatek,net.yaml-183- enum:\nDocumentation/devicetree/bindings/net/mediatek,net.yaml:184: - mediatek,mt7621-eth\nDocumentation/devicetree/bindings/net/mediatek,net.yaml-185- then:\n--\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-3----\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml:4:$id: http://devicetree.org/schemas/pci/mediatek,mt7621-pcie.yaml#\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml=48=properties:\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-49- compatible:\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml:50: const: mediatek,mt7621-pci\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-51-\n--\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml=106=examples:\n--\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-111- pcie: pcie@1e140000 {\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml:112: compatible = \"mediatek,mt7621-pci\";\nDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml-113- reg = \u003c0x1e140000 0x100\u003e,\n--\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-3----\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml:4:$id: http://devicetree.org/schemas/phy/mediatek,mt7621-pci-phy.yaml#\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml=12=properties:\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-13- compatible:\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml:14: const: mediatek,mt7621-pci-phy\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-15-\n--\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml=34=examples:\n--\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-36- pcie0_phy: pcie-phy@1e149000 {\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml:37: compatible = \"mediatek,mt7621-pci-phy\";\nDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml-38- reg = \u003c0x1e149000 0x0700\u003e;\n--\nDocumentation/devicetree/bindings/pinctrl/mediatek,mt7621-pinctrl.yaml-3----\nDocumentation/devicetree/bindings/pinctrl/mediatek,mt7621-pinctrl.yaml:4:$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7621-pinctrl.yaml#\nDocumentation/devicetree/bindings/pinctrl/mediatek,mt7621-pinctrl.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-3----\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml:4:$id: http://devicetree.org/schemas/watchdog/mediatek,mt7621-wdt.yaml#\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-5-$schema: http://devicetree.org/meta-schemas/core.yaml#\n--\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml=15=properties:\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-16- compatible:\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml:17: const: mediatek,mt7621-wdt\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-18-\n--\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml=34=examples:\n--\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-36- watchdog@100 {\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml:37: compatible = \"mediatek,mt7621-wdt\";\nDocumentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml-38- reg = \u003c0x100 0x100\u003e;\n--\nMAINTAINERS=16603=S:\tMaintained\nMAINTAINERS:16604:F:\tDocumentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml\nMAINTAINERS-16605-F:\tdrivers/clk/ralink/clk-mt7621.c\n--\nMAINTAINERS=16609=S:\tMaintained\nMAINTAINERS:16610:F:\tDocumentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml\nMAINTAINERS-16611-F:\tdrivers/pci/controller/pcie-mt7621.c\n--\nMAINTAINERS=16615=S:\tMaintained\nMAINTAINERS:16616:F:\tDocumentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml\nMAINTAINERS-16617-F:\tdrivers/phy/ralink/phy-mt7621-pci.c\n--\nMAINTAINERS=16622=S:\tMaintained\nMAINTAINERS:16623:F:\tDocumentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml\nMAINTAINERS-16624-F:\tdrivers/i2c/busses/i2c-mt7621.c\n--\nMAINTAINERS=21323=F:\tDocumentation/devicetree/bindings/pinctrl/mediatek,mt7620-pinctrl.yaml\nMAINTAINERS:21324:F:\tDocumentation/devicetree/bindings/pinctrl/mediatek,mt7621-pinctrl.yaml\nMAINTAINERS-21325-F:\tDocumentation/devicetree/bindings/pinctrl/mediatek,mt76x8-pinctrl.yaml\n--\narch/arm64/boot/dts/airoha/en7581.dtsi=322=\t\ti2c0: i2c@1fbf8000 {\narch/arm64/boot/dts/airoha/en7581.dtsi:323:\t\t\tcompatible = \"mediatek,mt7621-i2c\";\narch/arm64/boot/dts/airoha/en7581.dtsi-324-\t\t\treg = \u003c0x0 0x1fbf8000 0x0 0x100\u003e;\n--\narch/arm64/boot/dts/airoha/en7581.dtsi=336=\t\ti2c1: i2c@1fbf8100 {\narch/arm64/boot/dts/airoha/en7581.dtsi:337:\t\t\tcompatible = \"mediatek,mt7621-i2c\";\narch/arm64/boot/dts/airoha/en7581.dtsi-338-\t\t\treg = \u003c0x0 0x1fbf8100 0x0 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dts=9=/ {\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dts:10:\tcompatible = \"gnubee,gb-pc1\", \"mediatek,mt7621-soc\";\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dts-11-\tmodel = \"GnuBee GB-PC1\";\n--\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc2.dts=9=/ {\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc2.dts:10:\tcompatible = \"gnubee,gb-pc2\", \"mediatek,mt7621-soc\";\narch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc2.dts-11-\tmodel = \"GnuBee GB-PC2\";\n--\narch/mips/boot/dts/ralink/mt7621-tplink-hc220-g5-v1.dts=10=/ {\narch/mips/boot/dts/ralink/mt7621-tplink-hc220-g5-v1.dts:11:\tcompatible = \"tplink,hc220-g5-v1\", \"mediatek,mt7621-soc\";\narch/mips/boot/dts/ralink/mt7621-tplink-hc220-g5-v1.dts-12-\tmodel = \"TP-Link HC220 G5 v1\";\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=7=/ {\narch/mips/boot/dts/ralink/mt7621.dtsi:8:\tcompatible = \"mediatek,mt7621-soc\";\narch/mips/boot/dts/ralink/mt7621.dtsi-9-\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=155=\t\tsysc: syscon@0 {\narch/mips/boot/dts/ralink/mt7621.dtsi:156:\t\t\tcompatible = \"mediatek,mt7621-sysc\", \"syscon\";\narch/mips/boot/dts/ralink/mt7621.dtsi-157-\t\t\treg = \u003c0x0 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=169=\t\twdt: watchdog@100 {\narch/mips/boot/dts/ralink/mt7621.dtsi:170:\t\t\tcompatible = \"mediatek,mt7621-wdt\";\narch/mips/boot/dts/ralink/mt7621.dtsi-171-\t\t\treg = \u003c0x100 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=175=\t\tgpio: gpio@600 {\narch/mips/boot/dts/ralink/mt7621.dtsi:176:\t\t\tcompatible = \"mediatek,mt7621-gpio\";\narch/mips/boot/dts/ralink/mt7621.dtsi-177-\t\t\treg = \u003c0x600 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=190=\t\ti2c: i2c@900 {\narch/mips/boot/dts/ralink/mt7621.dtsi:191:\t\t\tcompatible = \"mediatek,mt7621-i2c\";\narch/mips/boot/dts/ralink/mt7621.dtsi-192-\t\t\treg = \u003c0x900 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=209=\t\tmemc: memory-controller@5000 {\narch/mips/boot/dts/ralink/mt7621.dtsi:210:\t\t\tcompatible = \"mediatek,mt7621-memc\", \"syscon\";\narch/mips/boot/dts/ralink/mt7621.dtsi-211-\t\t\treg = \u003c0x5000 0x1000\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=364=\tethernet: ethernet@1e100000 {\narch/mips/boot/dts/ralink/mt7621.dtsi:365:\t\tcompatible = \"mediatek,mt7621-eth\";\narch/mips/boot/dts/ralink/mt7621.dtsi-366-\t\treg = \u003c0x1e100000 0x10000\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=389=\t\t\tswitch0: switch@1f {\narch/mips/boot/dts/ralink/mt7621.dtsi:390:\t\t\t\tcompatible = \"mediatek,mt7621\";\narch/mips/boot/dts/ralink/mt7621.dtsi-391-\t\t\t\treg = \u003c0x1f\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=493=\tpcie: pcie@1e140000 {\narch/mips/boot/dts/ralink/mt7621.dtsi:494:\t\tcompatible = \"mediatek,mt7621-pci\";\narch/mips/boot/dts/ralink/mt7621.dtsi-495-\t\treg = \u003c0x1e140000 0x100\u003e, /* host-pci bridge registers */\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=584=\tpcie0_phy: pcie-phy@1e149000 {\narch/mips/boot/dts/ralink/mt7621.dtsi:585:\t\tcompatible = \"mediatek,mt7621-pci-phy\";\narch/mips/boot/dts/ralink/mt7621.dtsi-586-\t\treg = \u003c0x1e149000 0x0700\u003e;\n--\narch/mips/boot/dts/ralink/mt7621.dtsi=593=\tpcie2_phy: pcie-phy@1e14a000 {\narch/mips/boot/dts/ralink/mt7621.dtsi:594:\t\tcompatible = \"mediatek,mt7621-pci-phy\";\narch/mips/boot/dts/ralink/mt7621.dtsi-595-\t\treg = \u003c0x1e14a000 0x0700\u003e;\n--\narch/mips/boot/dts/ralink/mt7628a.dtsi=135=\t\twatchdog: watchdog@100 {\narch/mips/boot/dts/ralink/mt7628a.dtsi:136:\t\t\tcompatible = \"mediatek,mt7621-wdt\";\narch/mips/boot/dts/ralink/mt7628a.dtsi-137-\t\t\treg = \u003c0x100 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7628a.dtsi=166=\t\tgpio: gpio@600 {\narch/mips/boot/dts/ralink/mt7628a.dtsi:167:\t\t\tcompatible = \"mediatek,mt7621-gpio\";\narch/mips/boot/dts/ralink/mt7628a.dtsi-168-\t\t\treg = \u003c0x600 0x100\u003e;\n--\narch/mips/boot/dts/ralink/mt7628a.dtsi=197=\t\ti2c: i2c@900 {\narch/mips/boot/dts/ralink/mt7628a.dtsi:198:\t\t\tcompatible = \"mediatek,mt7621-i2c\";\narch/mips/boot/dts/ralink/mt7628a.dtsi-199-\t\t\treg = \u003c0x900 0x100\u003e;\n--\narch/mips/ralink/mt7621.c=167=void __init prom_soc_init(struct ralink_soc_info *soc_info)\n--\narch/mips/ralink/mt7621.c-191-\tif (mt7621_soc_valid())\narch/mips/ralink/mt7621.c:192:\t\tsoc_info-\u003ecompatible = \"mediatek,mt7621-soc\";\narch/mips/ralink/mt7621.c-193-\telse\n--\narch/mips/ralink/of.c=32=static const struct of_device_id mtmips_memc_match[] = {\narch/mips/ralink/of.c:33:\t{ .compatible = \"mediatek,mt7621-memc\" },\narch/mips/ralink/of.c-34-\t{ .compatible = \"ralink,mt7620a-memc\" },\n--\narch/mips/ralink/of.c=41=static const struct of_device_id mtmips_sysc_match[] = {\narch/mips/ralink/of.c:42:\t{ .compatible = \"mediatek,mt7621-sysc\" },\narch/mips/ralink/of.c-43-\t{ .compatible = \"ralink,mt7620-sysc\" },\n--\ndrivers/clk/ralink/clk-mt7621.c=351=static void __init mt7621_clk_init(struct device_node *node)\n--\ndrivers/clk/ralink/clk-mt7621.c-407-}\ndrivers/clk/ralink/clk-mt7621.c:408:CLK_OF_DECLARE_DRIVER(mt7621_clk, \"mediatek,mt7621-sysc\", mt7621_clk_init);\ndrivers/clk/ralink/clk-mt7621.c-409-\n--\ndrivers/clk/ralink/clk-mt7621.c=566=static const struct of_device_id mt7621_clk_of_match[] = {\ndrivers/clk/ralink/clk-mt7621.c:567:\t{ .compatible = \"mediatek,mt7621-sysc\" },\ndrivers/clk/ralink/clk-mt7621.c-568-\t{}\n--\ndrivers/gpio/gpio-mt7621.c=488=static const struct of_device_id mediatek_gpio_match[] = {\ndrivers/gpio/gpio-mt7621.c:489:\t{ .compatible = \"mediatek,mt7621-gpio\" },\ndrivers/gpio/gpio-mt7621.c-490-\t{},\n--\ndrivers/i2c/busses/i2c-mt7621.c=250=static const struct of_device_id i2c_mtk_dt_ids[] = {\ndrivers/i2c/busses/i2c-mt7621.c:251:\t{ .compatible = \"mediatek,mt7621-i2c\" },\ndrivers/i2c/busses/i2c-mt7621.c-252-\t{ /* sentinel */ }\n--\ndrivers/net/dsa/mt7530-mdio.c=138=static const struct of_device_id mt7530_of_match[] = {\ndrivers/net/dsa/mt7530-mdio.c:139:\t{ .compatible = \"mediatek,mt7621\", .data = \u0026mt753x_table[ID_MT7621], },\ndrivers/net/dsa/mt7530-mdio.c-140-\t{ .compatible = \"mediatek,mt7530\", .data = \u0026mt753x_table[ID_MT7530], },\n--\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c=5647=const struct of_device_id of_mtk_match[] = {\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c-5648-\t{ .compatible = \"mediatek,mt2701-eth\", .data = \u0026mt2701_data },\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c:5649:\t{ .compatible = \"mediatek,mt7621-eth\", .data = \u0026mt7621_data },\ndrivers/net/ethernet/mediatek/mtk_eth_soc.c-5650-\t{ .compatible = \"mediatek,mt7622-eth\", .data = \u0026mt7622_data },\n--\ndrivers/pci/controller/pcie-mt7621.c=531=static const struct of_device_id mt7621_pcie_ids[] = {\ndrivers/pci/controller/pcie-mt7621.c:532:\t{ .compatible = \"mediatek,mt7621-pci\" },\ndrivers/pci/controller/pcie-mt7621.c-533-\t{},\n--\ndrivers/phy/ralink/phy-mt7621-pci.c=341=static const struct of_device_id mt7621_pci_phy_ids[] = {\ndrivers/phy/ralink/phy-mt7621-pci.c:342:\t{ .compatible = \"mediatek,mt7621-pci-phy\" },\ndrivers/phy/ralink/phy-mt7621-pci.c-343-\t{},\n--\ndrivers/watchdog/mt7621_wdt.c=138=static int mt7621_wdt_probe(struct platform_device *pdev)\n--\ndrivers/watchdog/mt7621_wdt.c-151-\tif (IS_ERR(drvdata-\u003esysc)) {\ndrivers/watchdog/mt7621_wdt.c:152:\t\tdrvdata-\u003esysc = syscon_regmap_lookup_by_compatible(\"mediatek,mt7621-sysc\");\ndrivers/watchdog/mt7621_wdt.c-153-\t\tif (IS_ERR(drvdata-\u003esysc))\n--\ndrivers/watchdog/mt7621_wdt.c=209=static const struct of_device_id mt7621_wdt_match[] = {\ndrivers/watchdog/mt7621_wdt.c:210:\t{ .compatible = \"mediatek,mt7621-wdt\" },\ndrivers/watchdog/mt7621_wdt.c-211-\t{},\n"
} |
| 31/2 | 2026/08/20 20:48 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 34749 output: 108 thoughts: 384 Thoughts: **My Assessment: This Code is Unfuzzable in Typical Environments** Okay, so I've looked into this. There's no Syzkaller description for the `mediatek,mt7621` or `mediatek,mt7530` hardware, which immediately flags it. The driver in question is specifically for a MediaTek MT7530/MT7621 switch. It's an MDIO driver, which means it requires a very specific device tree node and access to the *actual* physical hardware to even *begin* to probe. My intuition says this is a non-starter for fuzzing, because in environments like QEMU, the hardware isn't emulated. Even *if* Syzkaller somehow managed to inject a relevant device tree node (which is already unlikely), the driver would fail to initialize because the registers it accesses through MDIO or MMIO simply wouldn't respond. The hardware's just not *there*. The patch itself seems to confirm this; it modifies only the `mt7530` driver, setting a `broken_eee` flag and disabling EEE advertisement within `mt7530_setup`. This is clearly a hardware-specific fix for physical switches, not something you'd see in a virtualized setting. I need to confirm my initial assumption, just to be thorough. The driver is located at `drivers/net/dsa/mt7530.c`. Ah, yes, it's a DSA switch driver. DSA switches are almost always physical hardware, that's their whole reason for existing. As far as I know, there's no software emulation of the MT7530 in QEMU. So, the verdict is `WorthFuzzing=false`. This code is unreachable in a generic fuzzing setup. I'm confident in that assessment. |
| 32/2 | 2026/08/20 20:48 | tool | set-results |
0mArgs:{
"EnableConfigs": [],
"FocusSymbols": [],
"Reasoning": "The patch modifies the MediaTek MT7530/MT7621 DSA switch driver to disable EEE advertisement on the switch PHYs due to hardware issues. This is a hardware-specific driver for physical MediaTek switches that are not emulated in standard QEMU or GCE environments. The code cannot be reached during generic kernel fuzzing in virtualized environments.",
"WorthFuzzing": false
}Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch modifies the MediaTek MT7530/MT7621 DSA switch driver to disable EEE advertisement on the switch PHYs due to hardware issues. This is a hardware-specific driver for physical MediaTek switches that are not emulated in standard QEMU or GCE environments. The code cannot be reached during generic kernel fuzzing in virtualized environments.",
"WorthFuzzing": false
} |
| 33/1 | 2026/08/20 20:48 | action | If |
0mArgs:{
"WorthFuzzing": false
}Results: null |
| Total Calls | Total Tokens | Avg Tokens | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|
| Total Calls | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|