AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/07/08 03:20 flow patch-triage
0m Args:
null

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only converts a devicetree binding documentation file from txt to yaml format. It does not contain any functional code changes.",
  "WorthFuzzing": false
}

1/1 2026/07/08 03:20 action read-patch-diff
0m Args:
null

Results:
{
  "PatchDiff": "commit 497cbaa51550908a4c12e998f5d12f44deee9e56\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Wed Jul 8 03:20:53 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/Documentation/devicetree/bindings/net/microchip,lan78xx.txt b/Documentation/devicetree/bindings/net/microchip,lan78xx.txt\ndeleted file mode 100644\nindex 11a679530ae65a..00000000000000\n--- a/Documentation/devicetree/bindings/net/microchip,lan78xx.txt\n+++ /dev/null\n@@ -1,53 +0,0 @@\n-Microchip LAN78xx Gigabit Ethernet controller\n-\n-The LAN78XX devices are usually configured by programming their OTP or with\n-an external EEPROM, but some platforms (e.g. Raspberry Pi 3 B+) have neither.\n-The Device Tree properties, if present, override the OTP and EEPROM.\n-\n-Required properties:\n-- compatible: Should be one of \"usb424,7800\", \"usb424,7801\" or \"usb424,7850\".\n-\n-The MAC address will be determined using the optional properties\n-defined in ethernet.txt.\n-\n-Optional properties of the embedded PHY:\n-- microchip,led-modes: a 0..4 element vector, with each element configuring\n-  the operating mode of an LED. Omitted LEDs are turned off. Allowed values\n-  are defined in \"include/dt-bindings/net/microchip-lan78xx.h\".\n-\n-Example:\n-\n-/* Based on the configuration for a Raspberry Pi 3 B+ */\n-\u0026usb {\n-\tusb-port@1 {\n-\t\tcompatible = \"usb424,2514\";\n-\t\treg = \u003c1\u003e;\n-\t\t#address-cells = \u003c1\u003e;\n-\t\t#size-cells = \u003c0\u003e;\n-\n-\t\tusb-port@1 {\n-\t\t\tcompatible = \"usb424,2514\";\n-\t\t\treg = \u003c1\u003e;\n-\t\t\t#address-cells = \u003c1\u003e;\n-\t\t\t#size-cells = \u003c0\u003e;\n-\n-\t\t\tethernet: ethernet@1 {\n-\t\t\t\tcompatible = \"usb424,7800\";\n-\t\t\t\treg = \u003c1\u003e;\n-\t\t\t\tlocal-mac-address = [ 00 11 22 33 44 55 ];\n-\n-\t\t\t\tmdio {\n-\t\t\t\t\t#address-cells = \u003c0x1\u003e;\n-\t\t\t\t\t#size-cells = \u003c0x0\u003e;\n-\t\t\t\t\teth_phy: ethernet-phy@1 {\n-\t\t\t\t\t\treg = \u003c1\u003e;\n-\t\t\t\t\t\tmicrochip,led-modes = \u003c\n-\t\t\t\t\t\t\tLAN78XX_LINK_1000_ACTIVITY\n-\t\t\t\t\t\t\tLAN78XX_LINK_10_100_ACTIVITY\n-\t\t\t\t\t\t\u003e;\n-\t\t\t\t\t};\n-\t\t\t\t};\n-\t\t\t};\n-\t\t};\n-\t};\n-};\ndiff --git a/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml b/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml\nnew file mode 100644\nindex 00000000000000..743667c1e7618e\n--- /dev/null\n+++ b/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml\n@@ -0,0 +1,113 @@\n+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)\n+%YAML 1.2\n+---\n+$id: http://devicetree.org/schemas/net/microchip,lan78xx.yaml#\n+$schema: http://devicetree.org/meta-schemas/core.yaml#\n+\n+title: Microchip LAN78xx Gigabit Ethernet controller\n+\n+maintainers:\n+  - Rengarajan Sundararajan \u003cRengarajan.S@microchip.com\u003e\n+  - UNGLinuxDriver \u003cUNGLinuxDriver@microchip.com\u003e\n+\n+description:\n+  The LAN78XX devices are usually configured by programming their OTP or with\n+  an external EEPROM, but some platforms (e.g. Raspberry Pi 3 B+) have neither.\n+  The Device Tree properties, if present, override the OTP and EEPROM.\n+\n+allOf:\n+  - $ref: /schemas/usb/usb-device.yaml#\n+  - $ref: /schemas/net/ethernet-controller.yaml#\n+\n+properties:\n+  compatible:\n+    enum:\n+      - usb424,7800\n+      - usb424,7801\n+      - usb424,7850\n+  reg:\n+    maxItems: 1\n+    description: USB port number\n+  local-mac-address:\n+    $ref: /schemas/types.yaml#/definitions/uint8-array\n+    minItems: 6\n+    maxItems: 6\n+    description:\n+      MAC address to use if not stored in OTP or EEPROM. If present,\n+      overrides OTP/EEPROM.\n+  mdio:\n+    $ref: /schemas/net/mdio.yaml#\n+    unevaluatedProperties: false\n+\n+patternProperties:\n+  \"^ethernet-phy(@[0-9a-f]+)?$\":\n+    type: object\n+    description: |\n+      PHY node for the embedded or external PHY. The PHY address is\n+      given by the 'reg' property.\n+    properties:\n+      reg:\n+        maxItems: 1\n+        description: PHY address.\n+      microchip,led-modes:\n+        $ref: /schemas/types.yaml#/definitions/uint32-array\n+        minItems: 1\n+        maxItems: 4\n+        description:\n+          Array of LED mode values for each of up to 4 LEDs.\n+          Omitted LEDs are turned off. Allowed values are defined\n+          in include/dt-bindings/net/microchip-lan78xx.h.\n+    required:\n+      - reg\n+    additionalProperties: false\n+\n+required:\n+  - compatible\n+  - reg\n+\n+unevaluatedProperties: false\n+\n+examples:\n+  - |\n+    #include \u003cdt-bindings/net/microchip-lan78xx.h\u003e\n+    / {\n+        usb: usb {\n+            compatible = \"usb-host\";\n+            #address-cells = \u003c1\u003e;\n+            #size-cells = \u003c0\u003e;\n+        };\n+    };\n+    \u0026usb {\n+        usb-port@1 {\n+            compatible = \"usb424,2514\";\n+            reg = \u003c1\u003e;\n+            #address-cells = \u003c1\u003e;\n+            #size-cells = \u003c0\u003e;\n+\n+            usb-port@1 {\n+                compatible = \"usb424,2514\";\n+                reg = \u003c1\u003e;\n+                #address-cells = \u003c1\u003e;\n+                #size-cells = \u003c0\u003e;\n+\n+                ethernet@1 {\n+                    compatible = \"usb424,7800\";\n+                    reg = \u003c1\u003e;\n+                    local-mac-address = [00 11 22 33 44 55];\n+\n+                    mdio {\n+                        #address-cells = \u003c1\u003e;\n+                        #size-cells = \u003c0\u003e;\n+                        ethernet-phy@1 {\n+                            reg = \u003c1\u003e;\n+                            microchip,led-modes = \u003c\n+                                LAN78XX_LINK_1000_ACTIVITY\n+                                LAN78XX_LINK_10_100_ACTIVITY\n+                            \u003e;\n+                        };\n+                    };\n+                };\n+            };\n+        };\n+    };\n+...\n"
}

2/1 2026/07/08 03:20 agent patch-evaluator
0m Model:
gemini-3.1-pro-preview

Args:
null

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only converts a devicetree binding documentation file from txt to yaml format. It does not contain any functional code changes.",
  "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).

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.
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.
   Do not list too generic configs (we already have them enabled). Only list those that
   specifically cover the modified code. 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 497cbaa51550908a4c12e998f5d12f44deee9e56
Author: syz-cluster <triage@syzkaller.com>
Date:   Wed Jul 8 03:20:53 2026 +0000

    syz-cluster: applied patch under review

diff --git a/Documentation/devicetree/bindings/net/microchip,lan78xx.txt b/Documentation/devicetree/bindings/net/microchip,lan78xx.txt
deleted file mode 100644
index 11a679530ae65a..00000000000000
--- a/Documentation/devicetree/bindings/net/microchip,lan78xx.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-Microchip LAN78xx Gigabit Ethernet controller
-
-The LAN78XX devices are usually configured by programming their OTP or with
-an external EEPROM, but some platforms (e.g. Raspberry Pi 3 B+) have neither.
-The Device Tree properties, if present, override the OTP and EEPROM.
-
-Required properties:
-- compatible: Should be one of "usb424,7800", "usb424,7801" or "usb424,7850".
-
-The MAC address will be determined using the optional properties
-defined in ethernet.txt.
-
-Optional properties of the embedded PHY:
-- microchip,led-modes: a 0..4 element vector, with each element configuring
-  the operating mode of an LED. Omitted LEDs are turned off. Allowed values
-  are defined in "include/dt-bindings/net/microchip-lan78xx.h".
-
-Example:
-
-/* Based on the configuration for a Raspberry Pi 3 B+ */
-&usb {
-	usb-port@1 {
-		compatible = "usb424,2514";
-		reg = <1>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		usb-port@1 {
-			compatible = "usb424,2514";
-			reg = <1>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			ethernet: ethernet@1 {
-				compatible = "usb424,7800";
-				reg = <1>;
-				local-mac-address = [ 00 11 22 33 44 55 ];
-
-				mdio {
-					#address-cells = <0x1>;
-					#size-cells = <0x0>;
-					eth_phy: ethernet-phy@1 {
-						reg = <1>;
-						microchip,led-modes = <
-							LAN78XX_LINK_1000_ACTIVITY
-							LAN78XX_LINK_10_100_ACTIVITY
-						>;
-					};
-				};
-			};
-		};
-	};
-};
diff --git a/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml b/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml
new file mode 100644
index 00000000000000..743667c1e7618e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,lan78xx.yaml
@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,lan78xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN78xx Gigabit Ethernet controller
+
+maintainers:
+  - Rengarajan Sundararajan <Rengarajan.S@microchip.com>
+  - UNGLinuxDriver <UNGLinuxDriver@microchip.com>
+
+description:
+  The LAN78XX devices are usually configured by programming their OTP or with
+  an external EEPROM, but some platforms (e.g. Raspberry Pi 3 B+) have neither.
+  The Device Tree properties, if present, override the OTP and EEPROM.
+
+allOf:
+  - $ref: /schemas/usb/usb-device.yaml#
+  - $ref: /schemas/net/ethernet-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - usb424,7800
+      - usb424,7801
+      - usb424,7850
+  reg:
+    maxItems: 1
+    description: USB port number
+  local-mac-address:
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    minItems: 6
+    maxItems: 6
+    description:
+      MAC address to use if not stored in OTP or EEPROM. If present,
+      overrides OTP/EEPROM.
+  mdio:
+    $ref: /schemas/net/mdio.yaml#
+    unevaluatedProperties: false
+
+patternProperties:
+  "^ethernet-phy(@[0-9a-f]+)?$":
+    type: object
+    description: |
+      PHY node for the embedded or external PHY. The PHY address is
+      given by the 'reg' property.
+    properties:
+      reg:
+        maxItems: 1
+        description: PHY address.
+      microchip,led-modes:
+        $ref: /schemas/types.yaml#/definitions/uint32-array
+        minItems: 1
+        maxItems: 4
+        description:
+          Array of LED mode values for each of up to 4 LEDs.
+          Omitted LEDs are turned off. Allowed values are defined
+          in include/dt-bindings/net/microchip-lan78xx.h.
+    required:
+      - reg
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/net/microchip-lan78xx.h>
+    / {
+        usb: usb {
+            compatible = "usb-host";
+            #address-cells = <1>;
+            #size-cells = <0>;
+        };
+    };
+    &usb {
+        usb-port@1 {
+            compatible = "usb424,2514";
+            reg = <1>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            usb-port@1 {
+                compatible = "usb424,2514";
+                reg = <1>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                ethernet@1 {
+                    compatible = "usb424,7800";
+                    reg = <1>;
+                    local-mac-address = [00 11 22 33 44 55];
+
+                    mdio {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        ethernet-phy@1 {
+                            reg = <1>;
+                            microchip,led-modes = <
+                                LAN78XX_LINK_1000_ACTIVITY
+                                LAN78XX_LINK_10_100_ACTIVITY
+                            >;
+                        };
+                    };
+                };
+            };
+        };
+    };
+...

3/2 2026/07/08 03:20 llm patch-evaluator
0m Model:
gemini-3.1-pro-preview

Args:
null

Results:
null

Tokens:
							input: 3511
							output: 58
							thoughts: 172
						

Thoughts:
**Documentation Update: No Functional Impact**

Okay, so the change is pretty straightforward. It looks like we're just updating the devicetree binding for the Microchip LAN78xx from a `.txt` file to a `.yaml` file. That's purely a documentation conversion, nothing that will impact the actual code execution, or Kconfig configuration. Therefore, this patch absolutely *should not* be flagged as something that requires fuzzing.

Let's do a quick double-check on the diff, just to be absolutely sure there aren't any sneaky, unmentioned code modifications. Yep, confirmed. Only those two documentation files are touched – the old `.txt` and the new `.yaml` binding.

Alright, I'm confident in this assessment. I'll go ahead and set the results accordingly, with `WorthFuzzing` set to `false`.



4/2 2026/07/08 03:20 tool set-results
0m Args:
{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only converts a devicetree binding documentation file from txt to yaml format. It does not contain any functional code changes.",
  "WorthFuzzing": false
}

Results:
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only converts a devicetree binding documentation file from txt to yaml format. It does not contain any functional code changes.",
  "WorthFuzzing": false
}

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