AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/06/29 04:08 flow patch-triage
0m Args: 
null

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only contains formatting changes to 'use' declarations in Rust files (adding newlines and trailing comments). There are no functional changes to the kernel logic.",
  "WorthFuzzing": false
}
1/1 2026/06/29 04:08 action read-patch-diff
0m Args: 
null

Results: 
{
  "PatchDiff": "commit 1e58d3b6f4bdc328e0e52823c26391f7d424dd8e\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Mon Jun 29 04:08:46 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/block/rnull/configfs.rs b/drivers/block/rnull/configfs.rs\nindex 7c2eb5c0b7228c..07ce21a440813e 100644\n--- a/drivers/block/rnull/configfs.rs\n+++ b/drivers/block/rnull/configfs.rs\n@@ -2,14 +2,26 @@\n \n use super::{NullBlkDevice, THIS_MODULE};\n use kernel::{\n-    block::mq::gen_disk::{GenDisk, GenDiskBuilder},\n-    configfs::{self, AttributeOperations},\n+    block::mq::gen_disk::{\n+        GenDisk,\n+        GenDiskBuilder, //\n+    },\n+    configfs::{\n+        self,\n+        AttributeOperations, //\n+    },\n     configfs_attrs,\n-    fmt::{self, Write as _},\n+    fmt::{\n+        self,\n+        Write as _, //\n+    },\n     new_mutex,\n     page::PAGE_SIZE,\n     prelude::*,\n-    str::{kstrtobool_bytes, CString},\n+    str::{\n+        kstrtobool_bytes,\n+        CString, //\n+    },\n     sync::Mutex,\n };\n \ndiff --git a/drivers/block/rnull/rnull.rs b/drivers/block/rnull/rnull.rs\nindex 0ca8715febe833..d58d2c4c5f6356 100644\n--- a/drivers/block/rnull/rnull.rs\n+++ b/drivers/block/rnull/rnull.rs\n@@ -10,12 +10,19 @@\n         self,\n         mq::{\n             self,\n-            gen_disk::{self, GenDisk},\n-            Operations, TagSet,\n+            gen_disk::{\n+                self,\n+                GenDisk, //\n+            },\n+            Operations,\n+            TagSet, //\n         },\n     },\n     prelude::*,\n-    sync::{aref::ARef, Arc},\n+    sync::{\n+        aref::ARef,\n+        Arc, //\n+    },\n };\n \n module! {\ndiff --git a/drivers/cpufreq/rcpufreq_dt.rs b/drivers/cpufreq/rcpufreq_dt.rs\nindex 10106fa13095e4..6f83cf8955a68b 100644\n--- a/drivers/cpufreq/rcpufreq_dt.rs\n+++ b/drivers/cpufreq/rcpufreq_dt.rs\n@@ -6,7 +6,10 @@\n     clk::Clk,\n     cpu, cpufreq,\n     cpumask::CpumaskVar,\n-    device::{Core, Device},\n+    device::{\n+        Core,\n+        Device, //\n+    },\n     error::code::*,\n     macros::vtable,\n     module_platform_driver, of, opp, platform,\ndiff --git a/drivers/gpu/drm/nova/file.rs b/drivers/gpu/drm/nova/file.rs\nindex a3b7bd36792c1b..9a1404a7a687e6 100644\n--- a/drivers/gpu/drm/nova/file.rs\n+++ b/drivers/gpu/drm/nova/file.rs\n@@ -4,7 +4,10 @@\n use crate::gem::NovaObject;\n use kernel::{\n     alloc::flags::*,\n-    drm::{self, gem::BaseObject},\n+    drm::{\n+        self,\n+        gem::BaseObject, //\n+    },\n     pci,\n     prelude::*,\n     uapi,\ndiff --git a/drivers/gpu/drm/nova/gem.rs b/drivers/gpu/drm/nova/gem.rs\nindex 9d8ff7de2c0f7f..f6bc7fdee73297 100644\n--- a/drivers/gpu/drm/nova/gem.rs\n+++ b/drivers/gpu/drm/nova/gem.rs\n@@ -2,7 +2,11 @@\n \n use kernel::{\n     drm,\n-    drm::{gem, gem::BaseObject, DeviceContext},\n+    drm::{\n+        gem,\n+        gem::BaseObject,\n+        DeviceContext, //\n+    },\n     page,\n     prelude::*,\n     sync::aref::ARef,\ndiff --git a/drivers/net/phy/ax88796b_rust.rs b/drivers/net/phy/ax88796b_rust.rs\nindex 2d24628a4e5812..5a21fe09bd624b 100644\n--- a/drivers/net/phy/ax88796b_rust.rs\n+++ b/drivers/net/phy/ax88796b_rust.rs\n@@ -5,7 +5,12 @@\n //!\n //! C version of this driver: [`drivers/net/phy/ax88796b.c`](./ax88796b.c)\n use kernel::{\n-    net::phy::{self, reg::C22, DeviceId, Driver},\n+    net::phy::{\n+        self,\n+        reg::C22,\n+        DeviceId,\n+        Driver, //\n+    },\n     prelude::*,\n     uapi,\n };\ndiff --git a/drivers/net/phy/qt2025.rs b/drivers/net/phy/qt2025.rs\nindex 470d89a0ac0069..efde3f909367a0 100644\n--- a/drivers/net/phy/qt2025.rs\n+++ b/drivers/net/phy/qt2025.rs\n@@ -14,11 +14,17 @@\n use kernel::io::poll::read_poll_timeout;\n use kernel::net::phy::{\n     self,\n-    reg::{Mmd, C45},\n+    reg::{\n+        Mmd,\n+        C45, //\n+    },\n     Driver,\n };\n use kernel::prelude::*;\n-use kernel::sizes::{SZ_16K, SZ_8K};\n+use kernel::sizes::{\n+    SZ_16K,\n+    SZ_8K, //\n+};\n use kernel::time::Delta;\n \n kernel::module_phy_driver! {\ndiff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs\nindex 3e3fa51ccef911..3e4524a1910bcf 100644\n--- a/drivers/pwm/pwm_th1520.rs\n+++ b/drivers/pwm/pwm_th1520.rs\n@@ -23,7 +23,11 @@\n use core::ops::Deref;\n use kernel::{\n     clk::Clk,\n-    device::{Bound, Core, Device},\n+    device::{\n+        Bound,\n+        Core,\n+        Device, //\n+    },\n     devres,\n     io::{\n         mem::IoMem,\ndiff --git a/samples/rust/rust_dma.rs b/samples/rust/rust_dma.rs\nindex 5046b4628d0e29..7d14574e887500 100644\n--- a/samples/rust/rust_dma.rs\n+++ b/samples/rust/rust_dma.rs\n@@ -14,7 +14,10 @@\n     },\n     page, pci,\n     prelude::*,\n-    scatterlist::{Owned, SGTable},\n+    scatterlist::{\n+        Owned,\n+        SGTable, //\n+    },\n     sync::aref::ARef,\n };\n \n"
}
2/1 2026/06/29 04:08 agent patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only contains formatting changes to 'use' declarations in Rust files (adding newlines and trailing comments). There are no functional changes to the kernel logic.",
  "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 1e58d3b6f4bdc328e0e52823c26391f7d424dd8e
Author: syz-cluster <triage@syzkaller.com>
Date:   Mon Jun 29 04:08:46 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/block/rnull/configfs.rs b/drivers/block/rnull/configfs.rs
index 7c2eb5c0b7228c..07ce21a440813e 100644
--- a/drivers/block/rnull/configfs.rs
+++ b/drivers/block/rnull/configfs.rs
@@ -2,14 +2,26 @@
 
 use super::{NullBlkDevice, THIS_MODULE};
 use kernel::{
-    block::mq::gen_disk::{GenDisk, GenDiskBuilder},
-    configfs::{self, AttributeOperations},
+    block::mq::gen_disk::{
+        GenDisk,
+        GenDiskBuilder, //
+    },
+    configfs::{
+        self,
+        AttributeOperations, //
+    },
     configfs_attrs,
-    fmt::{self, Write as _},
+    fmt::{
+        self,
+        Write as _, //
+    },
     new_mutex,
     page::PAGE_SIZE,
     prelude::*,
-    str::{kstrtobool_bytes, CString},
+    str::{
+        kstrtobool_bytes,
+        CString, //
+    },
     sync::Mutex,
 };
 
diff --git a/drivers/block/rnull/rnull.rs b/drivers/block/rnull/rnull.rs
index 0ca8715febe833..d58d2c4c5f6356 100644
--- a/drivers/block/rnull/rnull.rs
+++ b/drivers/block/rnull/rnull.rs
@@ -10,12 +10,19 @@
         self,
         mq::{
             self,
-            gen_disk::{self, GenDisk},
-            Operations, TagSet,
+            gen_disk::{
+                self,
+                GenDisk, //
+            },
+            Operations,
+            TagSet, //
         },
     },
     prelude::*,
-    sync::{aref::ARef, Arc},
+    sync::{
+        aref::ARef,
+        Arc, //
+    },
 };
 
 module! {
diff --git a/drivers/cpufreq/rcpufreq_dt.rs b/drivers/cpufreq/rcpufreq_dt.rs
index 10106fa13095e4..6f83cf8955a68b 100644
--- a/drivers/cpufreq/rcpufreq_dt.rs
+++ b/drivers/cpufreq/rcpufreq_dt.rs
@@ -6,7 +6,10 @@
     clk::Clk,
     cpu, cpufreq,
     cpumask::CpumaskVar,
-    device::{Core, Device},
+    device::{
+        Core,
+        Device, //
+    },
     error::code::*,
     macros::vtable,
     module_platform_driver, of, opp, platform,
diff --git a/drivers/gpu/drm/nova/file.rs b/drivers/gpu/drm/nova/file.rs
index a3b7bd36792c1b..9a1404a7a687e6 100644
--- a/drivers/gpu/drm/nova/file.rs
+++ b/drivers/gpu/drm/nova/file.rs
@@ -4,7 +4,10 @@
 use crate::gem::NovaObject;
 use kernel::{
     alloc::flags::*,
-    drm::{self, gem::BaseObject},
+    drm::{
+        self,
+        gem::BaseObject, //
+    },
     pci,
     prelude::*,
     uapi,
diff --git a/drivers/gpu/drm/nova/gem.rs b/drivers/gpu/drm/nova/gem.rs
index 9d8ff7de2c0f7f..f6bc7fdee73297 100644
--- a/drivers/gpu/drm/nova/gem.rs
+++ b/drivers/gpu/drm/nova/gem.rs
@@ -2,7 +2,11 @@
 
 use kernel::{
     drm,
-    drm::{gem, gem::BaseObject, DeviceContext},
+    drm::{
+        gem,
+        gem::BaseObject,
+        DeviceContext, //
+    },
     page,
     prelude::*,
     sync::aref::ARef,
diff --git a/drivers/net/phy/ax88796b_rust.rs b/drivers/net/phy/ax88796b_rust.rs
index 2d24628a4e5812..5a21fe09bd624b 100644
--- a/drivers/net/phy/ax88796b_rust.rs
+++ b/drivers/net/phy/ax88796b_rust.rs
@@ -5,7 +5,12 @@
 //!
 //! C version of this driver: [`drivers/net/phy/ax88796b.c`](./ax88796b.c)
 use kernel::{
-    net::phy::{self, reg::C22, DeviceId, Driver},
+    net::phy::{
+        self,
+        reg::C22,
+        DeviceId,
+        Driver, //
+    },
     prelude::*,
     uapi,
 };
diff --git a/drivers/net/phy/qt2025.rs b/drivers/net/phy/qt2025.rs
index 470d89a0ac0069..efde3f909367a0 100644
--- a/drivers/net/phy/qt2025.rs
+++ b/drivers/net/phy/qt2025.rs
@@ -14,11 +14,17 @@
 use kernel::io::poll::read_poll_timeout;
 use kernel::net::phy::{
     self,
-    reg::{Mmd, C45},
+    reg::{
+        Mmd,
+        C45, //
+    },
     Driver,
 };
 use kernel::prelude::*;
-use kernel::sizes::{SZ_16K, SZ_8K};
+use kernel::sizes::{
+    SZ_16K,
+    SZ_8K, //
+};
 use kernel::time::Delta;
 
 kernel::module_phy_driver! {
diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs
index 3e3fa51ccef911..3e4524a1910bcf 100644
--- a/drivers/pwm/pwm_th1520.rs
+++ b/drivers/pwm/pwm_th1520.rs
@@ -23,7 +23,11 @@
 use core::ops::Deref;
 use kernel::{
     clk::Clk,
-    device::{Bound, Core, Device},
+    device::{
+        Bound,
+        Core,
+        Device, //
+    },
     devres,
     io::{
         mem::IoMem,
diff --git a/samples/rust/rust_dma.rs b/samples/rust/rust_dma.rs
index 5046b4628d0e29..7d14574e887500 100644
--- a/samples/rust/rust_dma.rs
+++ b/samples/rust/rust_dma.rs
@@ -14,7 +14,10 @@
     },
     page, pci,
     prelude::*,
-    scatterlist::{Owned, SGTable},
+    scatterlist::{
+        Owned,
+        SGTable, //
+    },
     sync::aref::ARef,
 };

3/2 2026/06/29 04:08 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 3605
							output: 63
							thoughts: 320

Thoughts: 
**My Assessment of the Rust Patch**

Okay, so I've been given a patch that touches a bunch of Rust files within the Linux kernel: `drivers/block/rnull/configfs.rs`, `drivers/block/rnull/rnull.rs`, and so on, all the way down to `samples/rust/rust_dma.rs`. I need to figure out if it's something we should flag for fuzzing, which means I have to quickly understand the impact of these changes.

Looking closely, it seems these are exclusively cosmetic. They're all about reformatting the `use` statements. I see things like adding newlines and inline comments (`//`) to force the Rust formatter (`rustfmt`) to arrange these imports vertically. For instance, an import like `block::mq::gen_disk::{GenDisk, GenDiskBuilder}` is being transformed into something like `block::mq::gen_disk::{GenDisk, GenDiskBuilder, // }`.

Crucially, there are absolutely *no* changes to the core logic of the code. This means no new functionality, no bug fixes, no algorithmic modifications, nothing. It's purely stylistic.

Given this, the `WorthFuzzing` flag is definitively `false`. There's nothing to gain from fuzzing code that hasn't actually been modified from a functional perspective.

Just to be absolutely certain, I'll take a quick look at the diff again to double-check my initial assessment. Yep, still the same: all formatting changes related to `use` declarations.

Alright, I'm confident in my analysis. I'll call `set-results` with `WorthFuzzing: false`.

4/2 2026/06/29 04:08 tool set-results
0m Args: 
{
  "EnableConfigs": [],
  "FocusSymbols": [],
  "Reasoning": "The patch only contains formatting changes to 'use' declarations in Rust files (adding newlines and trailing comments). There are no functional changes to the kernel logic.",
  "WorthFuzzing": false
}

Results: 
{
  "EnableConfigs": null,
  "FocusSymbols": [],
  "Reasoning": "The patch only contains formatting changes to 'use' declarations in Rust files (adding newlines and trailing comments). There are no functional changes to the kernel logic.",
  "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)