| Seq | Timestamp | Type | Name | Duration |
|---|---|---|---|---|
| 0/0 | 2026/07/29 10:26 | flow | patch-triage |
3mArgs:null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch modifies `vcap_decode_rule` in the Microchip VCAP API library. This library is exclusively used by hardware-specific switch drivers (Sparx5 and Lan966x) which require physical hardware (specific Microchip SoCs) that are not emulated in standard QEMU. Consequently, this code path is unreachable in virtualized environments and cannot be fuzzed.",
"WorthFuzzing": false
} |
| 1/1 | 2026/07/29 10:26 | action | read-patch-diff |
0mArgs:null Results: {
"PatchDiff": "commit 4e8252d8f53ae14d1be1dcd1cbac22332c7db8ca\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Wed Jul 29 10:26:46 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c\nindex ff86cde11a32c..376be059d662c 100644\n--- a/drivers/net/ethernet/microchip/vcap/vcap_api.c\n+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c\n@@ -2427,18 +2427,21 @@ struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\n \n \terr = vcap_read_rule(ri);\n \tif (err)\n-\t\treturn ERR_PTR(err);\n+\t\tgoto out_err;\n \n \terr = vcap_decode_keyset(ri);\n \tif (err)\n-\t\treturn ERR_PTR(err);\n+\t\tgoto out_err;\n \n \terr = vcap_decode_actionset(ri);\n \tif (err)\n-\t\treturn ERR_PTR(err);\n+\t\tgoto out_err;\n \n out:\n \treturn \u0026ri-\u003edata;\n+out_err:\n+\tvcap_free_rule(\u0026ri-\u003edata);\n+\treturn ERR_PTR(err);\n }\n \n struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n"
} |
| 2/1 | 2026/07/29 10:26 | agent | patch-evaluator |
3mModel:best-expensive Args: null Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch modifies `vcap_decode_rule` in the Microchip VCAP API library. This library is exclusively used by hardware-specific switch drivers (Sparx5 and Lan966x) which require physical hardware (specific Microchip SoCs) that are not emulated in standard QEMU. Consequently, this code path is unreachable in virtualized environments and cannot be fuzzed.",
"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 4e8252d8f53ae14d1be1dcd1cbac22332c7db8ca
Author: syz-cluster <triage@syzkaller.com>
Date: Wed Jul 29 10:26:46 2026 +0000
syz-cluster: applied patch under review
diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c
index ff86cde11a32c..376be059d662c 100644
--- a/drivers/net/ethernet/microchip/vcap/vcap_api.c
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c
@@ -2427,18 +2427,21 @@ struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)
err = vcap_read_rule(ri);
if (err)
- return ERR_PTR(err);
+ goto out_err;
err = vcap_decode_keyset(ri);
if (err)
- return ERR_PTR(err);
+ goto out_err;
err = vcap_decode_actionset(ri);
if (err)
- return ERR_PTR(err);
+ goto out_err;
out:
return &ri->data;
+out_err:
+ vcap_free_rule(&ri->data);
+ return ERR_PTR(err);
}
struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)
|
| 3/2 | 2026/07/29 10:26 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 2205 output: 36 thoughts: 182 Thoughts: **Analyzing a Patch to a Microchip VCAP Driver** Okay, so I'm looking at this patch that tweaks `drivers/net/ethernet/microchip/vcap/vcap_api.c`. It looks like they've updated `vcap_decode_rule` to ensure `vcap_free_rule(&ri->data)` gets called on an error path, rather than just bailing out with `ERR_PTR(err)`. A good, defensive programming change, no question. My immediate thought is, "Is this even relevant in a virtualized context?" My expertise tells me that this is probably a hardware-specific driver, the Microchip VCAP API. Therefore, I need to know: Does this need a physical Microchip VCAP hardware, or could it be useful in some sort of emulated environment? My hunch is hardware, but I need to confirm. So, I need to find the Kconfig file for this to see if there are any hints. I'll check `drivers/net/ethernet/microchip/vcap/Kconfig`, then maybe `drivers/net/ethernet/microchip/Kconfig`, and, if those fail, I'll go all the way down to a more specific architecture, such as `drivers/net/ethernet/microchip/sparx5/Kconfig`. These configuration files will shed light on the dependencies and, ultimately, tell me if this patch is even going to be triggered in a virtualized or simulated setup. That's the real question here. |
| 4/2 | 2026/07/29 10:26 | tool | grepper |
0mArgs:{
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2413=EXPORT_SYMBOL_GPL(vcap_free_rule);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2415-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2416:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2417-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=2447=struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2460-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2461:\trule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2462-\tvcap_unlock(elem-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=292=static int vcap_show_admin(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-301-\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:302:\t\tvrule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-303-\t\tif (IS_ERR(vrule)) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h=122=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-124-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h:125:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-126-\n"
} |
| 5/2 | 2026/07/29 10:26 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 3422 output: 37 thoughts: 50 Thoughts: Okay, here's my take on those thoughts, framed from my expert perspective: **Investigating the Microchip VCAP API and its Hardware Dependencies** Alright, so the Microchip VCAP API... that immediately flags "hardware switch drivers" in my mind. Specifically, I'm thinking about the Sparx5 and Lan966x families. Those are solid, established hardware switches, no question about it. My first instinct is always to understand the level of abstraction, so now I'm immediately wondering: does this API have any useful software emulation available? Or is it *completely* tied to the physical hardware, meaning I'll need to get my hands dirty with a real device to do any serious testing or development? That's the key question now. I need to figure out the extent of the hardware dependency to understand the practicality of any software-only investigation or testing. |
| 6/2 | 2026/07/29 10:26 | tool | grepper |
0mError:no matches Args: {
"Expression": "config MICROCHIP_VCAP",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"error": "no matches"
} |
| 7/2 | 2026/07/29 10:26 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 3707 output: 36 thoughts: 10 Thoughts: Okay, here's my interpretation of those thoughts, crafted with the understanding that I'm speaking to a fellow expert: **Investigating the Kconfig for "vcap"** Right, so, I need to understand the configuration related to "vcap". My initial thought is to go straight to the Kconfig files. That's the most likely place to find the relevant definitions and dependencies. We're looking for how "vcap" is configured, what options are available, and what other components it might depend on or interact with. I'll need to drill down into the hierarchy, likely starting with the top-level Kconfig and then navigating down to more specific modules or drivers if necessary. It's a quick first step to verify the existence of the parameter and understand the possible options available. |
| 8/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "vcap_api.o",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/Makefile=8=vcap-$(CONFIG_DEBUG_FS) += vcap_api_debugfs.o\ndrivers/net/ethernet/microchip/vcap/Makefile-9-\ndrivers/net/ethernet/microchip/vcap/Makefile:10:vcap-y += vcap_api.o vcap_tc.o\n"
} |
| 9/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 4025 output: 40 thoughts: 20 Thoughts: Okay, let's dive into this. Here's my understanding, presented as my own mental processing: **Examining the VCAP Makefile** Alright, time to get my hands dirty. I need to take a look at the `drivers/net/ethernet/microchip/vcap/Makefile`. Given my background, I understand that this is where the build instructions and dependencies for the VCAP Ethernet driver reside. This Makefile is crucial for ensuring that the kernel correctly compiles and links the VCAP driver module. I'll need to examine its structure to understand how the driver integrates, which source files it includes, and any specific compiler flags or dependencies it requires. I will look for how the driver is being built, linked and installed. I also need to see if it makes use of any common driver infrastructure or uses any custom build rules for the specific Microchip VCAP hardware. This will give me a clear picture of how this driver fits into the overall kernel build process and its relationship with the rest of the network stack. |
| 10/2 | 2026/07/29 10:27 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/vcap/Makefile",
"FirstLine": 1,
"LineCount": 20
}Results: {
"Contents": " 1:\t# SPDX-License-Identifier: GPL-2.0-only\n 2:\t#\n 3:\t# Makefile for the Microchip VCAP API\n 4:\t#\n 5:\t\n 6:\tobj-$(CONFIG_VCAP) += vcap.o\n 7:\tobj-$(CONFIG_VCAP_KUNIT_TEST) += vcap_model_kunit.o\n 8:\tvcap-$(CONFIG_DEBUG_FS) += vcap_api_debugfs.o\n 9:\t\n 10:\tvcap-y += vcap_api.o vcap_tc.o\n"
} |
| 11/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 4460 output: 33 thoughts: 10 Thoughts: Okay, here's my interpretation of that thought process, assuming I'm deep in my domain: **Investigating Configuration Variables** Alright, time to troubleshoot. The issue's probably related to environmental configuration, so let's zero in on `CONFIG_VCAP`. I'm going to quickly check the status of this particular variable. It's a key piece of our setup, and it's likely crucial for how we interpret the environment. With `CONFIG_VCAP`, I expect it provides essential details about the deployment environment. I want to figure out where and how it is set. If it is not set as I expect it will guide me to the correct source of the problem. |
| 12/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "config VCAP",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/Kconfig=6=if NET_VENDOR_MICROCHIP\ndrivers/net/ethernet/microchip/vcap/Kconfig-7-\ndrivers/net/ethernet/microchip/vcap/Kconfig:8:config VCAP\ndrivers/net/ethernet/microchip/vcap/Kconfig-9-\tbool \"VCAP (Versatile Content-Aware Processor) library\"\n--\ndrivers/net/ethernet/microchip/vcap/Kconfig-38-\ndrivers/net/ethernet/microchip/vcap/Kconfig:39:config VCAP_KUNIT_TEST\ndrivers/net/ethernet/microchip/vcap/Kconfig-40-\tbool \"KUnit test for VCAP library\" if !KUNIT_ALL_TESTS\n"
} |
| 13/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 4853 output: 41 thoughts: 21 Thoughts: Here's a first-person summary of the thought process, tailored for an expert audience: **Diving into the vcap Kconfig** Alright, let's crack open `drivers/net/ethernet/microchip/vcap/Kconfig`. I already have a pretty solid understanding of Microchip's Ethernet offerings, especially their more complex solutions. I'm hoping to get a feel for how they've structured the configuration options for this specific device, the VCAP. My main interest is in understanding the build system interactions: what features are considered optional, how they've organized dependencies between them, and whether there are any clever tricks or gotchas I can glean for future reference. Specifically, I'm looking for: * **Core Feature Enablement:** What is the minimal configuration needed to get this driver up and running? Is it straightforward, or are there hidden dependencies on other drivers or subsystems I'll need to be aware of? * **Optional Features and Dependencies:** I'm keen to see how they've handled things like VLAN support, jumbo frames, checksum offload, and any other performance-enhancing or specialized features. Are the dependencies clearly defined? Are there reasonable defaults, or do I need to be careful with my configuration to avoid build errors? * **Vendor-Specific Considerations:** I'm also curious to see if there are any Microchip-specific quirks or workarounds in the configuration. Sometimes vendors have to do odd things to make hardware behave, so I'm hoping to spot any of that here. * **Documentation clues:** Is the configuration well-commented? Are there any hints on best practices or optimization considerations? Poor documentation here is a red flag. * **Integration with the broader network stack:** How does the VCAP driver fit into the overall network stack? Do they provide any extra features, like traffic shaping, flow control, or quality-of-service? Ultimately, this is about getting a quick overview of the vcap's configuration. The goal is to rapidly assess its capabilities, understand the key knobs for tuning it, and anticipate any potential integration challenges. Then I can get to the good stuff (the code!) and start to figure out how this thing *really* works. |
| 14/2 | 2026/07/29 10:27 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/vcap/Kconfig",
"FirstLine": 1,
"LineCount": 40
}Results: {
"Contents": " 1:\t# SPDX-License-Identifier: GPL-2.0-only\n 2:\t#\n 3:\t# Microchip VCAP API configuration\n 4:\t#\n 5:\t\n 6:\tif NET_VENDOR_MICROCHIP\n 7:\t\n 8:\tconfig VCAP\n 9:\t\tbool \"VCAP (Versatile Content-Aware Processor) library\"\n 10:\t\thelp\n 11:\t\t Provides the basic VCAP functionality for multiple Microchip switchcores\n 12:\t\n 13:\t\t A VCAP is essentially a TCAM with rules consisting of\n 14:\t\n 15:\t\t - Programmable key fields\n 16:\t\t - Programmable action fields\n 17:\t\t - A counter (which may be only one bit wide)\n 18:\t\n 19:\t\t Besides this each VCAP has:\n 20:\t\n 21:\t\t - A number of lookups\n 22:\t\t - A keyset configuration per port per lookup\n 23:\t\n 24:\t\t The VCAP implementation provides switchcore independent handling of rules\n 25:\t\t and supports:\n 26:\t\n 27:\t\t - Creating and deleting rules\n 28:\t\t - Updating and getting rules\n 29:\t\n 30:\t\t The platform specific configuration as well as the platform specific model\n 31:\t\t of the VCAP instances are attached to the VCAP API and a client can then\n 32:\t\t access rules via the API in a platform independent way, with the\n 33:\t\t limitations that each VCAP has in terms of its supported keys and actions.\n 34:\t\n 35:\t\t Different switchcores will have different VCAP instances with different\n 36:\t\t characteristics. Look in the datasheet for the VCAP specifications for the\n 37:\t\t specific switchcore.\n 38:\t\n 39:\tconfig VCAP_KUNIT_TEST\n 40:\t\tbool \"KUnit test for VCAP library\" if !KUNIT_ALL_TESTS\n"
} |
| 15/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 5902 output: 39 thoughts: 85 Thoughts: Okay, here's my take on those thoughts, framed from my expert perspective: **Examining Microchip Switchcore Library Code** Alright, so I'm digging into this Microchip switchcore library. Hardware-specific, naturally. The first question that pops into my head is, as always, "how well is this tested?" Given the critical nature of switchcores, I *need* to see the test strategy. Is there any form of software emulation or a solid KUnit test suite that exercises this code, or are we just relying on live hardware testing? Ah, okay, I see `CONFIG_VCAP_KUNIT_TEST`. That's encouraging; it looks like there *is* a KUnit test specifically for the VCAP library. Good start. Let's dig in and figure out the breadth of that test suite. I'm particularly interested in `vcap_decode_rule` right now. Is it covered by that KUnit test? If so, great. If not, can I trace a code path that reaches that method without needing a specific hardware configuration? Finding out now will help me assess the rigor of the testing and identify potential gaps. |
| 16/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2413=EXPORT_SYMBOL_GPL(vcap_free_rule);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2415-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2416:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2417-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=2447=struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2460-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2461:\trule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2462-\tvcap_unlock(elem-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=292=static int vcap_show_admin(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-301-\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:302:\t\tvrule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-303-\t\tif (IS_ERR(vrule)) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h=122=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-124-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h:125:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-126-\n"
} |
| 17/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 6944 output: 39 thoughts: 52 Thoughts: Here's my take on those thoughts: **Analyzing `vcap_decode_rule` Usage for Test Coverage** Okay, so `vcap_decode_rule` is the function we're interested in today. I see it's called primarily by `vcap_get_rule` and also pops up in `vcap_show_admin`, which I presume is a debugfs interface. The obvious next step is to determine if `vcap_get_rule` has its own KUnit tests. Test coverage is key, and if `vcap_get_rule` is tested, that likely provides *some* coverage for `vcap_decode_rule` as a result. Let's dig into the KUnit suite and see what we can find. If `vcap_get_rule` is tested, then we can likely infer `vcap_decode_rule` is covered as well. If not, then we need to investigate how to create a good test for this. |
| 18/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "vcap_get_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2416=struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2446-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2447:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2448-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2464-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2465:EXPORT_SYMBOL_GPL(vcap_get_rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2466-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=3353=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3396-/* Collect packet counts from all rules with the same cookie */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3397:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3398-\t\t\t\t struct vcap_counter *ctr, u64 cookie)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3435-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3436:EXPORT_SYMBOL_GPL(vcap_get_rule_count_by_cookie);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3437-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=173=struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-174-/* Get rule from a VCAP instance */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:175:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-176-/* Update existing rule */\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=207=int vcap_admin_rule_count(struct vcap_admin *admin, int cid);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-209-/* VCAP rule counter operations */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:210:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-211-\t\t\t\t struct vcap_counter *ctr, u64 cookie);\n"
} |
| 19/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8136 output: 48 thoughts: 62 Thoughts: Okay, here's my understanding, tailored for an expert audience, as if it were my own thought process: **Diving into the `vcap` Kernel Code** Alright, I'm digging into this `vcap` kernel module, and I'm trying to figure out how rule decoding works, specifically within the context of the KUnit tests. The initial assumption was that `vcap_get_rule` might be involved, but a quick `grep` confirms it's not directly called within `vcap_model_kunit.c`. That's a red herring, so let's move on. My next step is to determine if `vcap_model_kunit.c` instead calls the function `vcap_decode_rule` directly. That feels like the more logical place to find the link, given the initial absence of the `get` function. Now, I need to confirm whether `decode` is called, and understand *how* the rule decoding process is initiated within the KUnit framework. |
| 20/2 | 2026/07/29 10:27 | tool | grepper |
0mError:no matches Args: {
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/vcap_model_kunit.c"
}Results: {
"error": "no matches"
} |
| 21/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8477 output: 48 thoughts: 25 Thoughts: Here's my thought process, summarized as if I were considering the scenario: **Analyzing `vcap_model_kunit.c` and `vcap_get_rule`** Okay, so I'm looking at `vcap_model_kunit.c`. My immediate thought is, "Does this module actually *use* `vcap_get_rule`?" It's a key function in this system, so knowing if it's called from this specific source file is pretty crucial for understanding dependencies and potential impacts of changes. I need to quickly determine the call graph relationship. I'm thinking I can either quickly grep through the code for the function name, or maybe utilize my IDE to do a quicker search. Checking the call graph is the best option for me, as it will highlight any direct, or indirect calls. That's my immediate task - find out if `vcap_model_kunit.c` is *actually* relying on `vcap_get_rule`. No sense in further analysis until I know the connection, or lack thereof. |
| 22/2 | 2026/07/29 10:27 | tool | grepper |
0mError:no matches Args: {
"Expression": "vcap_get_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/vcap_model_kunit.c"
}Results: {
"error": "no matches"
} |
| 23/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 8791 output: 45 thoughts: 22 Thoughts: Okay, here's my thought process summarized from that prompt, tailored for an expert audience: **Examining Test Coverage for `vcap_model_kunit.c`** Alright, I'm diving into this and the first thing that jumps to mind is, "Does `vcap_model_kunit.c` have any tests specifically targeting *this* issue?". I need to quickly establish if there's existing coverage related to the area I'm currently investigating. I'm thinking, "Let's check if the existing tests in that module even touch upon the aspects relevant to this, or if I'm going to have to write something from scratch". It's all about efficient debugging and code maintenance, and knowing where your existing tests begin and end, is core to those practices. |
| 24/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "vcap_",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/vcap_model_kunit.c"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-12-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:13:#include \"vcap_api.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:14:#include \"vcap_model_kunit.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-15-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-16-/* keyfields */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:17:static const struct vcap_field is0_ll_full_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-18-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-179-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:180:static const struct vcap_field is0_normal_7tuple_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-181-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-372-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:373:static const struct vcap_field is0_normal_5tuple_ip4_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-374-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-545-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:546:static const struct vcap_field is0_pure_5tuple_ip4_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-547-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-613-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:614:static const struct vcap_field is0_etag_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-615-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-661-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:662:static const struct vcap_field is2_mac_etype_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-663-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-794-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:795:static const struct vcap_field is2_arp_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-796-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-937-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:938:static const struct vcap_field is2_ip4_tcp_udp_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-939-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1140-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1141:static const struct vcap_field is2_ip4_other_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1142-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1293-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1294:static const struct vcap_field is2_ip6_std_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1295-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1411-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1412:static const struct vcap_field is2_ip_7tuple_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1413-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1614-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1615:static const struct vcap_field es2_mac_etype_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1616-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1737-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1738:static const struct vcap_field es2_arp_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1739-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1875-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:1876:static const struct vcap_field es2_ip4_tcp_udp_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-1877-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2068-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2069:static const struct vcap_field es2_ip4_other_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2070-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2206-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2207:static const struct vcap_field es2_ip_7tuple_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2208-\t[VCAP_KF_LOOKUP_FIRST_IS] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2399-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2400:static const struct vcap_field es2_ip6_std_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2401-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2517-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2518:static const struct vcap_field es2_ip4_vid_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2519-\t[VCAP_KF_LOOKUP_FIRST_IS] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2620-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2621:static const struct vcap_field es2_ip6_vid_keyfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2622-\t[VCAP_KF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2689-/* keyfield_set */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2690:static const struct vcap_set is0_keyfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2691-\t[VCAP_KFS_LL_FULL] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2717-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2718:static const struct vcap_set is2_keyfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2719-\t[VCAP_KFS_MAC_ETYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2750-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2751:static const struct vcap_set es2_keyfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2752-\t[VCAP_KFS_MAC_ETYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2794-/* keyfield_set map */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2795:static const struct vcap_field *is0_keyfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2796-\t[VCAP_KFS_LL_FULL] = is0_ll_full_keyfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2802-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2803:static const struct vcap_field *is2_keyfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2804-\t[VCAP_KFS_MAC_ETYPE] = is2_mac_etype_keyfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2811-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2812:static const struct vcap_field *es2_keyfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2813-\t[VCAP_KFS_MAC_ETYPE] = es2_mac_etype_keyfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c=2841=static int es2_keyfield_set_map_size[] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2852-/* actionfields */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2853:static const struct vcap_field is0_classification_actionfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2854-\t[VCAP_AF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2965-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:2966:static const struct vcap_field is0_full_actionfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-2967-\t[VCAP_AF_DSCP_ENA] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3083-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3084:static const struct vcap_field is0_class_reduced_actionfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3085-\t[VCAP_AF_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3151-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3152:static const struct vcap_field is2_base_type_actionfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3153-\t[VCAP_AF_PIPELINE_FORCE_ENA] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3239-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3240:static const struct vcap_field es2_base_type_actionfield[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3241-\t[VCAP_AF_HIT_ME_ONCE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3313-/* actionfield_set */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3314:static const struct vcap_set is0_actionfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3315-\t[VCAP_AFS_CLASSIFICATION] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3331-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3332:static const struct vcap_set is2_actionfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3333-\t[VCAP_AFS_BASE_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3339-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3340:static const struct vcap_set es2_actionfield_set[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3341-\t[VCAP_AFS_BASE_TYPE] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3348-/* actionfield_set map */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3349:static const struct vcap_field *is0_actionfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3350-\t[VCAP_AFS_CLASSIFICATION] = is0_classification_actionfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3354-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3355:static const struct vcap_field *is2_actionfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3356-\t[VCAP_AFS_BASE_TYPE] = is2_base_type_actionfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3358-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3359:static const struct vcap_field *es2_actionfield_set_map[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3360-\t[VCAP_AFS_BASE_TYPE] = es2_base_type_actionfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c=3374=static int es2_actionfield_set_map_size[] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3378-/* Type Groups */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3379:static const struct vcap_typegroup is0_x12_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3380-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3442-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3443:static const struct vcap_typegroup is0_x6_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3444-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3476-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3477:static const struct vcap_typegroup is0_x3_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3478-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3495-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3496:static const struct vcap_typegroup is0_x2_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3497-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3509-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3510:static const struct vcap_typegroup is0_x1_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3511-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3513-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3514:static const struct vcap_typegroup is2_x12_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3515-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3537-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3538:static const struct vcap_typegroup is2_x6_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3539-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3551-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3552:static const struct vcap_typegroup is2_x3_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3553-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3555-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3556:static const struct vcap_typegroup is2_x1_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3557-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3559-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3560:static const struct vcap_typegroup es2_x12_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3561-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3583-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3584:static const struct vcap_typegroup es2_x6_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3585-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3597-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3598:static const struct vcap_typegroup es2_x3_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3599-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3606-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3607:static const struct vcap_typegroup es2_x1_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3608-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3610-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3611:static const struct vcap_typegroup *is0_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3612-\t[12] = is0_x12_keyfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3619-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3620:static const struct vcap_typegroup *is2_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3621-\t[12] = is2_x12_keyfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3627-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3628:static const struct vcap_typegroup *es2_keyfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3629-\t[12] = es2_x12_keyfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3635-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3636:static const struct vcap_typegroup is0_x3_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3637-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3654-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3655:static const struct vcap_typegroup is0_x2_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3656-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3668-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3669:static const struct vcap_typegroup is0_x1_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3670-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3677-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3678:static const struct vcap_typegroup is2_x3_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3679-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3696-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3697:static const struct vcap_typegroup is2_x1_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3698-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3700-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3701:static const struct vcap_typegroup es2_x3_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3702-\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3719-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3720:static const struct vcap_typegroup es2_x1_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3721-\t{}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3723-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3724:static const struct vcap_typegroup *is0_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3725-\t[3] = is0_x3_actionfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3730-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3731:static const struct vcap_typegroup *is2_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3732-\t[3] = is2_x3_actionfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3736-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3737:static const struct vcap_typegroup *es2_actionfield_set_typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3738-\t[3] = es2_x3_actionfield_set_typegroups,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3743-/* Keyfieldset names */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3744:static const char * const vcap_keyfield_set_names[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3745-\t[VCAP_KFS_NO_VALUE] = \"(None)\",\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3769-/* Actionfieldset names */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3770:static const char * const vcap_actionfield_set_names[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3771-\t[VCAP_AFS_NO_VALUE] = \"(None)\",\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3780-/* Keyfield names */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3781:static const char * const vcap_keyfield_names[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3782-\t[VCAP_KF_NO_VALUE] = \"(None)\",\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3898-/* Actionfield names */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3899:static const char * const vcap_actionfield_names[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3900-\t[VCAP_AF_NO_VALUE] = \"(None)\",\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3988-/* VCAPs */\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:3989:const struct vcap_info kunit_test_vcaps[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-3990-\t[VCAP_TYPE_IS0] = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-4054-\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:4055:const struct vcap_statistics kunit_test_vcap_stats = {\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-4056-\t.name = \"kunit_test\",\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-4057-\t.count = 3,\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:4058:\t.keyfield_set_names = vcap_keyfield_set_names,\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:4059:\t.actionfield_set_names = vcap_actionfield_set_names,\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:4060:\t.keyfield_names = vcap_keyfield_names,\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c:4061:\t.actionfield_names = vcap_actionfield_names,\ndrivers/net/ethernet/microchip/vcap/vcap_model_kunit.c-4062-};\n"
} |
| 25/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 17756 output: 45 thoughts: 48 Thoughts: Okay, here's my interpretation of those thoughts, tailored for an expert audience: **Investigating KUnit Test Implementation in the vcap Subsystem** Alright, looking at the code structure, `vcap_model_kunit.c` seems straightforward. It appears to primarily define the data structures and possibly mock functions for the KUnit tests related to the vcap subsystem. The real question is, where are the *actual* tests defined? I'm going to quickly check in the adjacent files, specifically `vcap_api_kunit.c`, and potentially any other `*kunit.c` files within the `vcap` directory. I'm expecting to find the test cases, setup and teardown routines, and the assertions within those files. I'm hoping it's clearly delineated between model and test definitions to help with maintainability. |
| 26/2 | 2026/07/29 10:27 | tool | grepper |
0mArgs:{
"Expression": "vcap_",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/vcap_api_kunit.c"
}Results: {
"Output": "\nFull output is too long, showing 500 out of 1251 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-6-#include \u003ckunit/test.h\u003e\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:7:#include \"vcap_api.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:8:#include \"vcap_api_client.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:9:#include \"vcap_model_kunit.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-10-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c=23=static u32 test_hw_counter_id;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:24:static struct vcap_cache_data test_hw_cache;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-25-static struct net_device test_netdev = {};\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c=28=static int test_move_count;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-30-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:31:static enum vcap_keyfield_set test_val_keyset(struct net_device *ndev,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:32:\t\t\t\t\t struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:33:\t\t\t\t\t struct vcap_rule *rule,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:34:\t\t\t\t\t struct vcap_keyset_list *kslist,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-35-\t\t\t\t\t u16 l3_proto)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c=73=static void test_add_def_fields(struct net_device *ndev,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:74:\t\t\t\tstruct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:75:\t\t\t\tstruct vcap_rule *rule)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-76-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-77-\tif (admin-\u003evinst == 0 || admin-\u003evinst == 2)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:78:\t\tvcap_rule_add_key_bit(rule, VCAP_KF_LOOKUP_FIRST_IS, VCAP_BIT_1);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-79-\telse\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:80:\t\tvcap_rule_add_key_bit(rule, VCAP_KF_LOOKUP_FIRST_IS, VCAP_BIT_0);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-81-}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-83-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:84:static void test_cache_erase(struct vcap_admin *admin)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-85-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-94-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:95:static void test_cache_init(struct net_device *ndev, struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-96-\t\t\t u32 start, u32 count)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-102-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:103:static void test_cache_read(struct net_device *ndev, struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:104:\t\t\t enum vcap_selection sel, u32 start, u32 count)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-105-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-144-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:145:static void test_cache_write(struct net_device *ndev, struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:146:\t\t\t enum vcap_selection sel, u32 start, u32 count)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-147-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-186-/* Callback used by the VCAP API */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:187:static void test_cache_update(struct net_device *ndev, struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:188:\t\t\t enum vcap_command cmd,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:189:\t\t\t enum vcap_selection sel, u32 addr)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-190-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-197-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:198:static void test_cache_move(struct net_device *ndev, struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-199-\t\t\t u32 addr, int offset, int count)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-206-/* Provide port information via a callback interface */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:207:static int vcap_test_port_info(struct net_device *ndev,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:208:\t\t\t struct vcap_admin *admin,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:209:\t\t\t struct vcap_output_print *out)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-210-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-213-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:214:static const struct vcap_operations test_callbacks = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-215-\t.validate_keyset = test_val_keyset,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-222-\t.move = test_cache_move,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:223:\t.port_info = vcap_test_port_info,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-224-};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-225-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:226:static struct vcap_control test_vctrl = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-227-\t.vcaps = kunit_test_vcaps,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:228:\t.stats = \u0026kunit_test_vcap_stats,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-229-\t.ops = \u0026test_callbacks,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-231-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:232:static void vcap_test_api_init(struct vcap_admin *admin)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-233-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-246-/* Helper function to create a rule of a specific size */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:247:static void test_vcap_xn_rule_creator(struct kunit *test, int cid,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:248:\t\t\t\t enum vcap_user user, u16 priority,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-249-\t\t\t\t int id, int size, int expected_addr)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-250-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:251:\tstruct vcap_rule *rule;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:252:\tstruct vcap_rule_internal *ri;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:253:\tenum vcap_keyfield_set keyset = VCAP_KFS_NO_VALUE;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:254:\tenum vcap_actionfield_set actionset = VCAP_AFS_NO_VALUE;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-255-\tint ret;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-288-\t/* Allocate the rule */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:289:\trule = vcap_alloc_rule(\u0026test_vctrl, \u0026test_netdev, cid, user, priority,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-290-\t\t\t id);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-292-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:293:\tri = (struct vcap_rule_internal *)rule;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-294-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-295-\t/* Override rule keyset */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:296:\tret = vcap_set_rule_set_keyset(rule, keyset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-297-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-298-\t/* Add rule actions : there must be at least one action */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:299:\tret = vcap_rule_add_action_u32(rule, VCAP_AF_ISDX_VAL, 0);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-300-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-301-\t/* Override rule actionset */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:302:\tret = vcap_set_rule_set_actionset(rule, actionset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-303-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:304:\tret = vcap_val_rule(rule, ETH_P_ALL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-305-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-310-\t/* Add rule with write callback */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:311:\tret = vcap_add_rule(rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-312-\tKUNIT_EXPECT_EQ(test, 0, ret);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-313-\tKUNIT_EXPECT_EQ(test, expected_addr, ri-\u003eaddr);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:314:\tvcap_free_rule(rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-315-}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c=318=static void test_init_rule_deletion(void)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-328-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:329:static void vcap_api_set_bit_1_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-330-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:331:\tstruct vcap_stream_iter iter = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-332-\t\t.offset = 35,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-339-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:340:\tvcap_set_bit(stream, \u0026iter, 1);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-341-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-345-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:346:static void vcap_api_set_bit_0_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-347-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:348:\tstruct vcap_stream_iter iter = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-349-\t\t.offset = 35,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-356-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:357:\tvcap_set_bit(stream, \u0026iter, 0);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-358-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-363-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:364:static void vcap_api_iterator_init_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-365-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:366:\tstruct vcap_stream_iter iter;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:367:\tstruct vcap_typegroup typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-368-\t\t{ .offset = 0, .width = 2, .value = 2, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-371-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:372:\tstruct vcap_typegroup typegroups2[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-373-\t\t{ .offset = 0, .width = 3, .value = 4, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-378-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:379:\tvcap_iter_init(\u0026iter, 52, typegroups, 86);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-380-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-385-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:386:\tvcap_iter_init(\u0026iter, 49, typegroups2, 134);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-387-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-393-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:394:static void vcap_api_iterator_next_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-395-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:396:\tstruct vcap_stream_iter iter;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:397:\tstruct vcap_typegroup typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-398-\t\t{ .offset = 0, .width = 4, .value = 8, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-407-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:408:\tvcap_iter_init(\u0026iter, 49, typegroups, 86);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-409-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-414-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:415:\tvcap_iter_next(\u0026iter);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-416-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-421-\tfor (idx = 0; idx \u003c 6; idx++)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:422:\t\tvcap_iter_next(\u0026iter);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-423-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-428-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:429:static void vcap_api_encode_typegroups_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-430-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-431-\tu32 stream[12] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:432:\tstruct vcap_typegroup typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-433-\t\t{ .offset = 0, .width = 4, .value = 8, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-441-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:442:\tvcap_encode_typegroups(stream, 49, typegroups, false);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-443-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-457-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:458:static void vcap_api_encode_bit_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-459-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:460:\tstruct vcap_stream_iter iter;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-461-\tu32 stream[4] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:462:\tstruct vcap_typegroup typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-463-\t\t{ .offset = 0, .width = 4, .value = 8, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-471-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:472:\tvcap_iter_init(\u0026iter, 49, typegroups, 44);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-473-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-477-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:478:\tvcap_encode_bit(stream, \u0026iter, 1);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-479-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-484-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:485:static void vcap_api_encode_field_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-486-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:487:\tstruct vcap_stream_iter iter;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-488-\tu32 stream[16] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:489:\tstruct vcap_typegroup typegroups[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-490-\t\t{ .offset = 0, .width = 4, .value = 8, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-497-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:498:\tstruct vcap_field rf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-499-\t\t.type = VCAP_FIELD_U32,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-504-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:505:\tvcap_iter_init(\u0026iter, 49, typegroups, rf.offset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-506-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-510-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:511:\tvcap_encode_field(stream, \u0026iter, rf.width, value);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-512-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-518-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:519:\tvcap_encode_typegroups(stream, 49, typegroups, false);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-520-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-535-/* In this testcase the subword is smaller than a register */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:536:static void vcap_api_encode_short_field_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-537-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:538:\tstruct vcap_stream_iter iter;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-539-\tint sw_width = 21;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-540-\tu32 stream[6] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:541:\tstruct vcap_typegroup tgt[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-542-\t\t{ .offset = 0, .width = 3, .value = 7, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-546-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:547:\tstruct vcap_field rf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-548-\t\t.type = VCAP_FIELD_U32,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-553-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:554:\tvcap_iter_init(\u0026iter, sw_width, tgt, rf.offset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-555-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-561-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:562:\tvcap_encode_field(stream, \u0026iter, rf.width, value);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-563-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-570-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:571:\tvcap_encode_typegroups(stream, sw_width, tgt, false);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-572-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-580-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:581:static void vcap_api_encode_keyfield_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-582-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-584-\tu32 maskwords[16] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:585:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-586-\t\t.vtype = VCAP_TYPE_IS2,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-592-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:593:\tstruct vcap_rule_internal rule = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-594-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-599-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:600:\tstruct vcap_client_keyfield ckf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-601-\t\t.ctrl.list = {},\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-606-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:607:\tstruct vcap_field rf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-608-\t\t.type = VCAP_FIELD_U32,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-611-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:612:\tstruct vcap_typegroup tgt[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-613-\t\t{ .offset = 0, .width = 2, .value = 2, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-617-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:618:\tvcap_test_api_init(\u0026admin);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:619:\tvcap_encode_keyfield(\u0026rule, \u0026ckf, \u0026rf, tgt);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-620-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-639-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:640:static void vcap_api_encode_max_keyfield_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-641-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-644-\tu32 maskwords[6] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:645:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-646-\t\t.vtype = VCAP_TYPE_IS2,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-653-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:654:\tstruct vcap_rule_internal rule = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-655-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-660-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:661:\tstruct vcap_client_keyfield ckf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-662-\t\t.ctrl.list = {},\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-669-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:670:\tstruct vcap_field rf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-671-\t\t.type = VCAP_FIELD_U128,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-674-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:675:\tstruct vcap_typegroup tgt[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-676-\t\t{ .offset = 0, .width = 2, .value = 2, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-696-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:697:\tvcap_encode_keyfield(\u0026rule, \u0026ckf, \u0026rf, tgt);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-698-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-706-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:707:static void vcap_api_encode_actionfield_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-708-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-710-\tint sw_width = 21;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:711:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-712-\t\t.vtype = VCAP_TYPE_ES2, /* act_width = 21 */\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-716-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:717:\tstruct vcap_rule_internal rule = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-718-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-723-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:724:\tstruct vcap_client_actionfield caf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-725-\t\t.ctrl.list = {},\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-729-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:730:\tstruct vcap_field rf = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-731-\t\t.type = VCAP_FIELD_U32,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-734-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:735:\tstruct vcap_typegroup tgt[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-736-\t\t{ .offset = 0, .width = 2, .value = 2, },\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-741-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:742:\tvcap_encode_actionfield(\u0026rule, \u0026caf, \u0026rf, tgt);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-743-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-753-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:754:static void vcap_api_keyfield_typegroup_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-755-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:756:\tconst struct vcap_typegroup *tg;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-757-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:758:\ttg = vcap_keyfield_typegroup(\u0026test_vctrl, VCAP_TYPE_IS2, VCAP_KFS_MAC_ETYPE);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-759-\tKUNIT_EXPECT_PTR_NE(test, NULL, tg);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-769-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:770:\ttg = vcap_keyfield_typegroup(\u0026test_vctrl, VCAP_TYPE_ES2, VCAP_KFS_LL_FULL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-771-\tKUNIT_EXPECT_PTR_EQ(test, NULL, tg);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-773-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:774:static void vcap_api_actionfield_typegroup_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-775-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:776:\tconst struct vcap_typegroup *tg;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-777-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:778:\ttg = vcap_actionfield_typegroup(\u0026test_vctrl, VCAP_TYPE_IS0, VCAP_AFS_FULL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-779-\tKUNIT_EXPECT_PTR_NE(test, NULL, tg);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-792-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:793:\ttg = vcap_actionfield_typegroup(\u0026test_vctrl, VCAP_TYPE_IS2, VCAP_AFS_CLASSIFICATION);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-794-\tKUNIT_EXPECT_PTR_EQ(test, NULL, tg);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-796-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:797:static void vcap_api_vcap_keyfields_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-798-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:799:\tconst struct vcap_field *ft;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-800-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:801:\tft = vcap_keyfields(\u0026test_vctrl, VCAP_TYPE_IS2, VCAP_KFS_MAC_ETYPE);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-802-\tKUNIT_EXPECT_PTR_NE(test, NULL, ft);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-804-\t/* Keyset that is not available and within the maximum keyset enum value */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:805:\tft = vcap_keyfields(\u0026test_vctrl, VCAP_TYPE_ES2, VCAP_KFS_PURE_5TUPLE_IP4);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-806-\tKUNIT_EXPECT_PTR_EQ(test, NULL, ft);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-808-\t/* Keyset that is not available and beyond the maximum keyset enum value */\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:809:\tft = vcap_keyfields(\u0026test_vctrl, VCAP_TYPE_ES2, VCAP_KFS_LL_FULL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-810-\tKUNIT_EXPECT_PTR_EQ(test, NULL, ft);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-812-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:813:static void vcap_api_vcap_actionfields_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-814-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:815:\tconst struct vcap_field *ft;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-816-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:817:\tft = vcap_actionfields(\u0026test_vctrl, VCAP_TYPE_IS0, VCAP_AFS_FULL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-818-\tKUNIT_EXPECT_PTR_NE(test, NULL, ft);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-819-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:820:\tft = vcap_actionfields(\u0026test_vctrl, VCAP_TYPE_IS2, VCAP_AFS_FULL);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-821-\tKUNIT_EXPECT_PTR_EQ(test, NULL, ft);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-822-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:823:\tft = vcap_actionfields(\u0026test_vctrl, VCAP_TYPE_IS2, VCAP_AFS_CLASSIFICATION);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-824-\tKUNIT_EXPECT_PTR_EQ(test, NULL, ft);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-826-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:827:static void vcap_api_encode_rule_keyset_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-828-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-830-\tu32 maskwords[16] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:831:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-832-\t\t.vtype = VCAP_TYPE_IS2,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-837-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:838:\tstruct vcap_rule_internal rule = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-839-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-844-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:845:\tstruct vcap_client_keyfield ckf[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-846-\t\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-900-\tINIT_LIST_HEAD(\u0026rule.data.keyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:901:\tret = vcap_encode_rule_keyset(\u0026rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-902-\tKUNIT_EXPECT_EQ(test, -EINVAL, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-905-\t\tlist_add_tail(\u0026ckf[idx].ctrl.list, \u0026rule.data.keyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:906:\tret = vcap_encode_rule_keyset(\u0026rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-907-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-938-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:939:static void vcap_api_encode_rule_actionset_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-940-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-941-\tu32 actwords[16] = {0};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:942:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-943-\t\t.vtype = VCAP_TYPE_IS2,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-947-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:948:\tstruct vcap_rule_internal rule = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-949-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-954-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:955:\tstruct vcap_client_actionfield caf[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-956-\t\t{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-976-\tINIT_LIST_HEAD(\u0026rule.data.actionfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:977:\tret = vcap_encode_rule_actionset(\u0026rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-978-\t/* We allow rules with no actions */\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-982-\t\tlist_add_tail(\u0026caf[idx].ctrl.list, \u0026rule.data.actionfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:983:\tret = vcap_encode_rule_actionset(\u0026rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-984-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1000-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1001:static void vcap_free_ckf(struct vcap_rule *rule)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1002-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1003:\tstruct vcap_client_keyfield *ckf, *next_ckf;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1004-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1010-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1011:static void vcap_api_rule_add_keyvalue_test(struct kunit *test)\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1012-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1013:\tstruct vcap_admin admin = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1014-\t\t.vtype = VCAP_TYPE_IS2,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1015-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1016:\tstruct vcap_rule_internal ri = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1017-\t\t.admin = \u0026admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1022-\t};\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1023:\tstruct vcap_rule *rule = (struct vcap_rule *)\u0026ri;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1024:\tstruct vcap_client_keyfield *kf;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1025-\tint ret;\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1026:\tstruct vcap_u128_key dip = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1027-\t\t.value = {0x17, 0x26, 0x35, 0x44, 0x63, 0x62, 0x71},\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1032-\tINIT_LIST_HEAD(\u0026rule-\u003ekeyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1033:\tret = vcap_rule_add_key_bit(rule, VCAP_KF_LOOKUP_FIRST_IS, VCAP_BIT_0);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1034-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1036-\tKUNIT_EXPECT_EQ(test, false, ret);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1037:\tkf = list_first_entry(\u0026rule-\u003ekeyfields, struct vcap_client_keyfield,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1038-\t\t\t ctrl.list);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1042-\tKUNIT_EXPECT_EQ(test, 0x1, kf-\u003edata.u1.mask);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1043:\tvcap_free_ckf(rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1044-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1045-\tINIT_LIST_HEAD(\u0026rule-\u003ekeyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1046:\tret = vcap_rule_add_key_bit(rule, VCAP_KF_LOOKUP_FIRST_IS, VCAP_BIT_1);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1047-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1049-\tKUNIT_EXPECT_EQ(test, false, ret);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1050:\tkf = list_first_entry(\u0026rule-\u003ekeyfields, struct vcap_client_keyfield,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1051-\t\t\t ctrl.list);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1055-\tKUNIT_EXPECT_EQ(test, 0x1, kf-\u003edata.u1.mask);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1056:\tvcap_free_ckf(rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1057-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1058-\tINIT_LIST_HEAD(\u0026rule-\u003ekeyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1059:\tret = vcap_rule_add_key_bit(rule, VCAP_KF_LOOKUP_FIRST_IS,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1060-\t\t\t\t VCAP_BIT_ANY);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1063-\tKUNIT_EXPECT_EQ(test, false, ret);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1064:\tkf = list_first_entry(\u0026rule-\u003ekeyfields, struct vcap_client_keyfield,\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1065-\t\t\t ctrl.list);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1069-\tKUNIT_EXPECT_EQ(test, 0x0, kf-\u003edata.u1.mask);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1070:\tvcap_free_ckf(rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1071-\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1072-\tINIT_LIST_HEAD(\u0026rule-\u003ekeyfields);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1073:\tret = vcap_rule_add_key_u32(rule, VCAP_KF_TYPE, 0x98765432, 0xff00ffab);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1074-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c-1076-\tKUNIT_EXPECT_EQ(test, false, ret);\ndrivers/net/ethernet/microchip/vcap/vcap_api_kunit.c:1077:\tkf = list_first_entry(\u0026rule-\u003ekeyfields, struct vcap_client_keyfield,\n\n"
} |
| 27/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 33874 output: 48 thoughts: 32 Thoughts: Okay, here's my take on those thoughts, framed as my own: **Analyzing the vcap_api_kunit.c Test Suite** Alright, let's dive into `vcap_api_kunit.c`. I'm going through the tests in this module, as it has a pretty extensive suite. My primary concern right now is to see if we have good coverage for the `vcap_decode_rule` function. I need to quickly determine if there are dedicated tests, or if its functionality is covered indirectly within other tests. A lack of specific tests would be a red flag, and I'd need to consider where that function's coverage stands, and, if lacking, plan accordingly. Let's see what we've got. |
| 28/2 | 2026/07/29 10:27 | tool | grepper |
0mError:no matches Args: {
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/vcap_api_kunit.c"
}Results: {
"error": "no matches"
} |
| 29/2 | 2026/07/29 10:27 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 34130 output: 36 thoughts: 176 Thoughts: **Reaching `vcap_decode_rule` in a Virtualized World** Okay, so this code path isn't specifically covered by KUnit, which raises a flag. The real question is: can `vcap_decode_rule` even *be* reached when running in a virtualized environment? It's called by `vcap_get_rule` and, of course, the `vcap_show_admin` debugging tool. `vcap_get_rule` is exported, making it accessible to external clients, which immediately piques my interest. The key here is whether any of those client drivers can be loaded and exercised under QEMU. Thinking through this, we're talking about drivers like `sparx5` and `lan966x`. These are hardware switch drivers, so that immediately brings up concerns about dependency. My initial hunch is that these will require some form of PCIe or platform device that is generally not fully emulated in a typical QEMU setup. They almost certainly need more than standard emulation. Therefore, let me now go and check whether there is any established or known software emulation for either of those switches. That is where I will start, for now. |
| 30/2 | 2026/07/29 10:28 | tool | grepper |
0mArgs:{
"Expression": "config SPARX5_SWITCH",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/sparx5/Kconfig:1:config SPARX5_SWITCH\ndrivers/net/ethernet/microchip/sparx5/Kconfig-2-\ttristate \"Sparx5 switch driver\"\n"
} |
| 31/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 34665 output: 42 thoughts: 22 Thoughts: Here's a summary of my thought process, as requested: **Navigating the Kernel's Network Driver Configuration** Okay, so I need to understand the configuration options for the Microchip Sparx5 Ethernet driver within the Linux kernel. Where would I expect to find these settings? My initial intuition tells me to start digging into the `drivers/net` subtree, as that's where the network-related code resides. More specifically, given the name, "Sparx5," it sounds like it might be a specific type of device, which leads me to hone in on the `ethernet` subdirectory. Now, within `drivers/net/ethernet/`, I'm looking for anything related to configuration. Typically, kernel configuration options are defined in `Kconfig` files. That's the standard. So, the most likely path to find these specific Sparx5 configuration options is `drivers/net/ethernet/microchip/sparx5/Kconfig`. Let's confirm that that is the correct path and delve into the contents of that `Kconfig` file. |
| 32/2 | 2026/07/29 10:28 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/sparx5/Kconfig",
"FirstLine": 1,
"LineCount": 20
}Results: {
"Contents": " 1:\tconfig SPARX5_SWITCH\n 2:\t\ttristate \"Sparx5 switch driver\"\n 3:\t\tdepends on NET_SWITCHDEV\n 4:\t\tdepends on HAS_IOMEM\n 5:\t\tdepends on OF\n 6:\t\tdepends on ARCH_SPARX5 || ARCH_LAN969X || COMPILE_TEST\n 7:\t\tdepends on PTP_1588_CLOCK_OPTIONAL\n 8:\t\tdepends on BRIDGE || BRIDGE=n\n 9:\t\tselect PHYLINK\n 10:\t\tselect PHY_SPARX5_SERDES\n 11:\t\tselect RESET_CONTROLLER\n 12:\t\tselect VCAP\n 13:\t\tselect FDMA\n 14:\t\thelp\n 15:\t\t This driver supports the Sparx5 network switch device.\n 16:\t\n 17:\tconfig SPARX5_DCB\n 18:\t\tbool \"Data Center Bridging (DCB) support\"\n 19:\t\tdepends on SPARX5_SWITCH \u0026\u0026 DCB\n 20:\t\tdefault y\n"
} |
| 33/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 35223 output: 39 thoughts: 147 Thoughts: **Analyzing the Compilation Logic** Okay, so this code's compilation path definitely hinges on the target architecture. It's either the Microchip Sparx5, the LAN969x, or a compile test setup. That strongly suggests this is a driver specific to those chips, right? And, if it's tied to specific hardware, that probably means it won't run natively in standard QEMU. But now, I'm thinking about `vcap_decode_rule`. That function is buried in `vcap_api.c`, which makes me think it is only included if `CONFIG_VCAP` is set. Also, `CONFIG_VCAP_KUNIT_TEST` seems to test the VCAP API. Wait a second… `vcap_decode_rule` isn't tested in `vcap_api_kunit.c`. That's a red flag. Is there *any* other KUnit test coverage for this specific function anywhere in the project? I need to dig deeper. This seems odd and worth a second look. |
| 34/2 | 2026/07/29 10:28 | tool | grepper |
0mArgs:{
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2413=EXPORT_SYMBOL_GPL(vcap_free_rule);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2415-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2416:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2417-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=2447=struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2460-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2461:\trule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2462-\tvcap_unlock(elem-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=292=static int vcap_show_admin(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-301-\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:302:\t\tvrule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-303-\t\tif (IS_ERR(vrule)) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h=122=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-124-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h:125:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-126-\n"
} |
| 35/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 36309 output: 36 thoughts: 165 Thoughts: **Investigating VCAP Accessibility** Okay, so I'm trying to figure out if I can interact with `vcap_show_admin` without having actual hardware. It's part of `debugfs`, which is a good starting point. Right, `vcap_api_debugfs.c` is responsible for creating those `debugfs` entries related to VCAP. But here's the catch: those entries are only created if a VCAP control structure is initialized by a client driver. Thinking about it, drivers like Sparx5 come to mind. Now, the problem is that Sparx5 and Lan966x, from what I know, need physical hardware or very specific SoCs. So, running them in standard QEMU seems impossible. Wait... is there *any* virtual driver or software emulation that uses VCAP? I need to check. To be absolutely sure, I'm going to scan the code for any uses of `vcap_get_rule`, `vcap_show_admin`, or anything related to `vcap_api.c`. That should give me the answer. |
| 36/2 | 2026/07/29 10:28 | tool | grepper |
0mArgs:{
"Expression": "vcap_get_rule",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c=54=static int lan966x_ptp_add_trap(struct lan966x_port *port,\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c-63-\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c:64:\tvrule = vcap_get_rule(lan966x-\u003evcap_ctrl, rule_id);\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c-65-\tif (!IS_ERR(vrule)) {\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c=103=static int lan966x_ptp_del_trap(struct lan966x_port *port,\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c-110-\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c:111:\tvrule = vcap_get_rule(lan966x-\u003evcap_ctrl, rule_id);\ndrivers/net/ethernet/microchip/lan966x/lan966x_ptp.c-112-\tif (IS_ERR(vrule))\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c=583=static int lan966x_tc_flower_stats(struct lan966x_port *port,\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c-589-\ndrivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c:590:\terr = vcap_get_rule_count_by_cookie(port-\u003elan966x-\u003evcap_ctrl,\ndrivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c-591-\t\t\t\t\t \u0026count, f-\u003ecookie);\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c=1375=static int sparx5_tc_free_rule_resources(struct net_device *ndev,\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c-1383-\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c:1384:\tvrule = vcap_get_rule(vctrl, rule_id);\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c-1385-\tif (IS_ERR(vrule))\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c=1428=static int sparx5_tc_flower_stats(struct net_device *ndev,\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c-1438-\tvctrl = port-\u003esparx5-\u003evcap_ctrl;\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c:1439:\terr = vcap_get_rule_count_by_cookie(vctrl, \u0026ctr, fco-\u003ecookie);\ndrivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c-1440-\tif (err)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=2416=struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2446-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2447:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2448-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2464-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2465:EXPORT_SYMBOL_GPL(vcap_get_rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2466-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=3353=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3396-/* Collect packet counts from all rules with the same cookie */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3397:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3398-\t\t\t\t struct vcap_counter *ctr, u64 cookie)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3435-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3436:EXPORT_SYMBOL_GPL(vcap_get_rule_count_by_cookie);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3437-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=173=struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-174-/* Get rule from a VCAP instance */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:175:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-176-/* Update existing rule */\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=207=int vcap_admin_rule_count(struct vcap_admin *admin, int cid);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-209-/* VCAP rule counter operations */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:210:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-211-\t\t\t\t struct vcap_counter *ctr, u64 cookie);\n"
} |
| 37/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 38586 output: 40 thoughts: 49 Thoughts: Okay, here's my take on those thoughts, framed as my own: **Analyzing `vcap_get_rule` Usage** Alright, let's see, the code's telling me that `vcap_get_rule` is only being used by `lan966x` and `sparx5`. My initial hunch is confirmed; both of these are hardware-specific drivers, which makes perfect sense. I remember working with both of those platforms, and the context of rule retrieval aligns with the kind of hardware acceleration they typically require. Now, let's dig a bit deeper and see what the `lan966x` Kconfig has to say about it. I have a feeling the configuration options there will give us some more insight into how this rule retrieval is being handled. |
| 38/2 | 2026/07/29 10:28 | tool | grepper |
0mError:no matches Args: {
"Expression": "config MICROCHIP_LAN966X",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"error": "no matches"
} |
| 39/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 38857 output: 44 thoughts: 24 Thoughts: Here's my thought process, summarized as you requested: **Kconfig Check** Okay, time to get down to brass tacks. I need to understand the configuration options for this LAN966x driver within the kernel. My first port of call is undoubtedly the `Kconfig` file in the driver's directory. Specifically, I'm heading straight to `drivers/net/ethernet/microchip/lan966x/Kconfig`. That file *defines* the configuration options this driver exposes to the user. I need to see what knobs are available for things like PHY settings, interrupt configuration, flow control, and any other microchip-specific features. I'm looking for the dependencies, help texts, and default values – all the context that `Kconfig` provides to understand how users can tailor this driver to their specific hardware and network requirements. This Kconfig file is the *blueprint* for how users interact with and customize the LAN966x driver; I need to understand this to have any chance of making effective changes or understanding current functionality. This is the place to start. |
| 40/2 | 2026/07/29 10:28 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/lan966x/Kconfig",
"FirstLine": 1,
"LineCount": 20
}Results: {
"Contents": " 1:\tconfig LAN966X_SWITCH\n 2:\t\ttristate \"Lan966x switch driver\"\n 3:\t\tdepends on PTP_1588_CLOCK_OPTIONAL\n 4:\t\tdepends on HAS_IOMEM\n 5:\t\tdepends on OF\n 6:\t\tdepends on NET_SWITCHDEV\n 7:\t\tdepends on BRIDGE || BRIDGE=n\n 8:\t\tselect PHYLINK\n 9:\t\tselect PAGE_POOL\n 10:\t\tselect VCAP\n 11:\t\tselect FDMA\n 12:\t\thelp\n 13:\t\t This driver supports the Lan966x network switch device.\n 14:\t\n 15:\tconfig LAN966X_DCB\n 16:\t\tbool \"Data Center Bridging (DCB) support\"\n 17:\t\tdepends on LAN966X_SWITCH \u0026\u0026 DCB\n 18:\t\tdefault y\n 19:\t\thelp\n 20:\t\t Say Y here if you want to use Data Center Bridging (DCB) in the\n"
} |
| 41/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 39421 output: 39 thoughts: 198 Thoughts: **Analyzing the LAN966X_SWITCH Driver and KUnit Testing** Okay, so I'm looking at `LAN966X_SWITCH`, and it's pretty clear that it has some key dependencies. First, it relies on `HAS_IOMEM` and, crucially, `OF` – the Open Firmware or Device Tree. Good to know. It's not tied to `COMPILE_TEST` or any specific architecture (`ARCH_...`), which is interesting, but that `OF` dependency is going to be important in the big picture. Right, so as a platform driver, I can already see a potential problem for emulation, especially in something like QEMU. Unless someone's gone to the trouble of defining a specific machine model for the Lan966x or Sparx5, there won't be a device tree node for it, which means the driver won't even *probe*. That's a classic gotcha. Hold on, I was just thinking about testing, I wonder if there’s a KUnit test path to `vcap_decode_rule`? I need to figure out if it can be reached via KUnit. I’ve checked `vcap_api_kunit.c` and `vcap_model_kunit.c` and I didn’t find a direct call to the function via grep, which is a start, but I need to make sure I haven’t missed anything. Gotta double-check and see if it's potentially called from a different test file. |
| 42/2 | 2026/07/29 10:28 | tool | grepper |
0mArgs:{
"Expression": "vcap_decode_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2413=EXPORT_SYMBOL_GPL(vcap_free_rule);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2415-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2416:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2417-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=2447=struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2460-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2461:\trule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2462-\tvcap_unlock(elem-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=292=static int vcap_show_admin(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-301-\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:302:\t\tvrule = vcap_decode_rule(elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-303-\t\tif (IS_ERR(vrule)) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h=122=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-124-/* Decode a rule from the VCAP cache and return a copy */\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h:125:struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem);\ndrivers/net/ethernet/microchip/vcap/vcap_api_private.h-126-\n"
} |
| 43/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 40658 output: 39 thoughts: 29 Thoughts: Okay, here's my interpretation of those thoughts, crafted with the understanding that I'm speaking to a fellow expert: **Concerning Callers and KUnit Integration** Alright, so the only callers I'm seeing are `vcap_get_rule` and `vcap_show_admin`. That's a limited set, which sparks an immediate question: are these functions being invoked by KUnit? That's the most likely scenario, at least initially. I need to figure out the testing context. I'm wondering if this small set of callers is a sign of a focused KUnit test suite, or if there's something else at play here. Understanding the connection to KUnit is key to interpreting the significance of these calls. My next step will be to explore the code surrounding these functions, looking for KUnit-specific directives or any clues that point to it being the driving force behind these calls. |
| 44/2 | 2026/07/29 10:28 | tool | grepper |
0mArgs:{
"Expression": "vcap_get_rule",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api.c=2416=struct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2446-\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2447:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2448-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2464-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:2465:EXPORT_SYMBOL_GPL(vcap_get_rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-2466-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c=3353=int vcap_rule_get_keysets(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3396-/* Collect packet counts from all rules with the same cookie */\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3397:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3398-\t\t\t\t struct vcap_counter *ctr, u64 cookie)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3435-}\ndrivers/net/ethernet/microchip/vcap/vcap_api.c:3436:EXPORT_SYMBOL_GPL(vcap_get_rule_count_by_cookie);\ndrivers/net/ethernet/microchip/vcap/vcap_api.c-3437-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=173=struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-174-/* Get rule from a VCAP instance */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:175:struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-176-/* Update existing rule */\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h=207=int vcap_admin_rule_count(struct vcap_admin *admin, int cid);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-209-/* VCAP rule counter operations */\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h:210:int vcap_get_rule_count_by_cookie(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_client.h-211-\t\t\t\t struct vcap_counter *ctr, u64 cookie);\n"
} |
| 45/2 | 2026/07/29 10:28 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 41808 output: 39 thoughts: 27 Thoughts: Okay, here's my take on those thoughts, framed as an expert's internal monologue: **Investigating KUnit's Interaction with VCAP Components** Right, so I'm looking into the relationship between KUnit and these VCAP functions. My initial expectation was that I'd see calls to `vcap_get_rule` within the KUnit framework. That would make sense, given its role. But it appears that's not the case – *that's interesting*. The lack of direct interaction raises questions about how KUnit is testing the logic or features that would normally use that function. Okay, let's pivot. What about `vcap_show_admin`? Does KUnit interact with *that* function? Does that interaction offer a pathway to testing VCAP functionality? Perhaps testing admin functions is a path to the functions I'm interested in. I need to investigate further and figure out where the connection points are. |
| 46/2 | 2026/07/29 10:29 | tool | grepper |
0mArgs:{
"Expression": "vcap_show_admin",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=212=static int vcap_debugfs_show_rule_actionset(struct vcap_rule_internal *ri,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-235-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:236:static void vcap_show_admin_rule(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-237-\t\t\t\t struct vcap_admin *admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-265-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:266:static void vcap_show_admin_info(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-267-\t\t\t\t struct vcap_admin *admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-291-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:292:static int vcap_show_admin(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-293-\t\t\t struct vcap_admin *admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-299-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:300:\tvcap_show_admin_info(vctrl, admin, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-301-\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-308-\t\tout-\u003eprf(out-\u003edst, \"\\n\");\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:309:\t\tvcap_show_admin_rule(vctrl, admin, out, to_intrule(vrule));\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-310-\t\tvcap_free_rule(vrule);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-314-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:315:static int vcap_show_admin_raw(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-316-\t\t\t struct vcap_admin *admin,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=404=static int vcap_debugfs_show(struct seq_file *m, void *unused)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-413-\tvcap_lock(info-\u003eadmin);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:414:\tret = vcap_show_admin(info-\u003evctrl, info-\u003eadmin, \u0026out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-415-\tvcap_unlock(info-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=421=static int vcap_raw_debugfs_show(struct seq_file *m, void *unused)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-430-\tvcap_lock(info-\u003eadmin);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:431:\tret = vcap_show_admin_raw(info-\u003evctrl, info-\u003eadmin, \u0026out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-432-\tvcap_unlock(info-\u003eadmin);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c=344=static void vcap_api_show_admin_raw_test(struct kunit *test)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-375-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:376:\tret = vcap_show_admin_raw(\u0026test_vctrl, \u0026admin, \u0026out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-377-\tKUNIT_EXPECT_EQ(test, 0, ret);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c=402=static void vcap_api_show_admin_test(struct kunit *test)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-420-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:421:\tvcap_show_admin_info(\u0026test_vctrl, \u0026admin, \u0026out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-422-\tfor (idx = 0; idx \u003c test_pr_bufferidx; ++idx) {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c=475=static void vcap_api_show_admin_rule_test(struct kunit *test)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-532-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:533:\tret = vcap_show_admin(\u0026test_vctrl, \u0026admin, \u0026out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-534-\tKUNIT_EXPECT_EQ(test, 0, ret);\n"
} |
| 47/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 43778 output: 53 thoughts: 68 Thoughts: Okay, let me break this down. **Tracing the Admin Rule Flow** Right, so I see that `vcap_show_admin` is being invoked by `vcap_api_show_admin_rule_test` within the `vcap_api_debugfs_kunit.c` file. Interesting. My mental map immediately tells me that's a key linkage for administrative rule viewing functionality. And I know I need to understand that administrative rule viewing functionality. Furthermore, I note that `vcap_show_admin`, in turn, is calling `vcap_decode_rule`. That's important. `vcap_decode_rule` is almost certainly where the actual parsing and interpretation of the rules is happening. I need to confirm this quickly, but that connection is critical for how this entire structure operates. I need to make sure my understanding is correct and that I have the correct connections. Time to start the verification process. |
| 48/2 | 2026/07/29 10:29 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c",
"FirstLine": 520,
"LineCount": 20
}Results: {
"Contents": " 520:\t\t\t.actionset_sw = 3,\n 521:\t\t\t.actionset_sw_regs = 4,\n 522:\t\t\t.addr = 794,\n 523:\t\t\t.vctrl = \u0026test_vctrl,\n 524:\t\t};\n 525:\t\tstruct vcap_output_print out = {\n 526:\t\t\t.prf = (void *)test_prf,\n 527:\t\t};\n 528:\t\tint ret, idx;\n 529:\t\n 530:\t\tvcap_test_api_init(\u0026admin);\n 531:\t\tlist_add_tail(\u0026ri.list, \u0026admin.rules);\n 532:\t\n 533:\t\tret = vcap_show_admin(\u0026test_vctrl, \u0026admin, \u0026out);\n 534:\t\tKUNIT_EXPECT_EQ(test, 0, ret);\n 535:\t\tfor (idx = 0; idx \u003c test_pr_bufferidx; ++idx) {\n 536:\t\t\t/* pr_info(\"log[%02d]: %s\", idx, test_pr_buffer[idx]); */\n 537:\t\t\tKUNIT_EXPECT_STREQ(test, test_admin_expect[idx],\n 538:\t\t\t\t\t test_pr_buffer[idx]);\n 539:\t\t}\n"
} |
| 49/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 44449 output: 50 thoughts: 60 Thoughts: Okay, here's the summary, framed as my thought process: **Tracing the Rule Decoding Logic** Yes! I've confirmed that the `vcap_api_show_admin_rule_test` function, as expected, ultimately calls `vcap_show_admin`. And `vcap_show_admin` then leverages `vcap_decode_rule`. That's the flow I need to understand. Now I should focus on `vcap_show_admin`, specifically in `vcap_api_debugfs.c`. Let's get into the details there and see how that decoding process actually unfolds. |
| 50/2 | 2026/07/29 10:29 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c",
"FirstLine": 290,
"LineCount": 25
}Results: {
"Contents": " 290:\t}\n 291:\t\n 292:\tstatic int vcap_show_admin(struct vcap_control *vctrl,\n 293:\t\t\t\t struct vcap_admin *admin,\n 294:\t\t\t\t struct vcap_output_print *out)\n 295:\t{\n 296:\t\tstruct vcap_rule_internal *elem;\n 297:\t\tstruct vcap_rule *vrule;\n 298:\t\tint ret = 0;\n 299:\t\n 300:\t\tvcap_show_admin_info(vctrl, admin, out);\n 301:\t\tlist_for_each_entry(elem, \u0026admin-\u003erules, list) {\n 302:\t\t\tvrule = vcap_decode_rule(elem);\n 303:\t\t\tif (IS_ERR(vrule)) {\n 304:\t\t\t\tret = PTR_ERR(vrule);\n 305:\t\t\t\tbreak;\n 306:\t\t\t}\n 307:\t\n 308:\t\t\tout-\u003eprf(out-\u003edst, \"\\n\");\n 309:\t\t\tvcap_show_admin_rule(vctrl, admin, out, to_intrule(vrule));\n 310:\t\t\tvcap_free_rule(vrule);\n 311:\t\t}\n 312:\t\treturn ret;\n 313:\t}\n 314:\t\n"
} |
| 51/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 45063 output: 48 thoughts: 115 Thoughts: **Analyzing the `vcap_decode_rule` Fix** Okay, so the KUnit tests confirm that `vcap_decode_rule` is indeed accessible and, therefore, testable. The patch in question adds a call to `vcap_free_rule(&ri->data)` on error within `vcap_decode_rule`. That's good. My immediate thought is, is this a worthwhile fuzzing target now that it's fixed? Before I jump to conclusions, let's break this down further. The patch addresses a memory leak within `vcap_decode_rule` on these error paths. Good catch. Now, `vcap_decode_rule` (or rather, I need to confirm `vcap_alloc_rule` is called inside it) is allocating memory. I need to make sure I am tracing back to the allocation of the memory with the call. Let's trace through the implementation of `vcap_decode_rule` to confirm where memory is actually being allocated and how the free is connected. |
| 52/2 | 2026/07/29 10:29 | tool | read-file |
0mArgs:{
"File": "drivers/net/ethernet/microchip/vcap/vcap_api.c",
"FirstLine": 2416,
"LineCount": 35
}Results: {
"Contents": "2416:\tstruct vcap_rule *vcap_decode_rule(struct vcap_rule_internal *elem)\n2417:\t{\n2418:\t\tstruct vcap_rule_internal *ri;\n2419:\t\tint err;\n2420:\t\n2421:\t\tri = vcap_dup_rule(elem, elem-\u003estate == VCAP_RS_DISABLED);\n2422:\t\tif (IS_ERR(ri))\n2423:\t\t\treturn ERR_CAST(ri);\n2424:\t\n2425:\t\tif (ri-\u003estate == VCAP_RS_DISABLED)\n2426:\t\t\tgoto out;\n2427:\t\n2428:\t\terr = vcap_read_rule(ri);\n2429:\t\tif (err)\n2430:\t\t\tgoto out_err;\n2431:\t\n2432:\t\terr = vcap_decode_keyset(ri);\n2433:\t\tif (err)\n2434:\t\t\tgoto out_err;\n2435:\t\n2436:\t\terr = vcap_decode_actionset(ri);\n2437:\t\tif (err)\n2438:\t\t\tgoto out_err;\n2439:\t\n2440:\tout:\n2441:\t\treturn \u0026ri-\u003edata;\n2442:\tout_err:\n2443:\t\tvcap_free_rule(\u0026ri-\u003edata);\n2444:\t\treturn ERR_PTR(err);\n2445:\t}\n2446:\t\n2447:\tstruct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id)\n2448:\t{\n2449:\t\tstruct vcap_rule_internal *elem;\n2450:\t\tstruct vcap_rule *rule;\n"
} |
| 53/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 45932 output: 37 thoughts: 362 Thoughts: **Analyzing a Memory Leak Fix** Okay, so `vcap_dup_rule` allocates memory for `ri`, that's clear. The critical point is that previously, if `vcap_read_rule`, `vcap_decode_keyset`, or `vcap_decode_actionset` failed, it returned an error *without* freeing `ri`. A classic memory leak situation. The change is that now it correctly calls `vcap_free_rule(&ri->data)` before returning, which fixes the memory leak – a good, necessary functional change. The next question is always, "is this fix actually relevant in the environments we care about?" So, how is this codepath reached in, for example, a virtualized setup? Ah, yes, the KUnit tests. The KUnit framework can trigger those. I see that `vcap_api_show_admin_rule_test` specifically calls this code. But, how *does* the KUnit get triggered? Syzkaller, right? Syzkaller can trigger them if they are modules, or built-in, but usually doesn't fuzz them directly unless they have exposed interfaces like debugfs. Wait a second… `vcap_show_admin` *is* reachable via debugfs! That's a potential attack vector. Let's see… `vcap_api_debugfs.c` creates the debugfs entries, so that's the starting point. But, as I recall, the debugfs entries are only *actually* created if a client driver, like Sparx5 or Lan966x, initializes the VCAP control structure and then calls `vcap_debugfs_init`. Those drivers are for specific physical hardware, though, like Sparx5 and Lan966x. They won't probe in QEMU, so `vcap_debugfs_init` is never called, and the debugfs entries won't exist. So, the next step is to make sure nothing else calls `vcap_debugfs_init`, or uses VCAP at all. I need to verify that. |
| 54/2 | 2026/07/29 10:29 | tool | grepper |
0mError:no matches Args: {
"Expression": "vcap_debugfs_init",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"error": "no matches"
} |
| 55/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 46801 output: 35 thoughts: 10 Thoughts: Okay, here's the summary, assuming I'm the one having these thoughts and I am an expert in my field: **Second-Guessing Nomenclature** Hmm, I'm just reviewing this again, and it’s nagging at me. Is this specific term – the one I'm using, the one I *think* is standard – is it really the most appropriate? I'm starting to get this feeling that it might be called something different in this particular context, or perhaps there's a more current or precise label I'm overlooking. I know the basics, the core concepts, but I'm questioning whether I've missed a nuance in the terminology. I don't want to sound outdated or, worse, misunderstand something critical, just because of my assumptions about the terminology. Time to double-check my sources and make sure I'm using the most accurate and accepted designation. |
| 56/2 | 2026/07/29 10:29 | tool | grepper |
0mArgs:{
"Expression": "debugfs",
"PathPrefix": "drivers/net/ethernet/microchip/vcap/"
}Results: {
"Output": "drivers/net/ethernet/microchip/vcap/Makefile=7=obj-$(CONFIG_VCAP_KUNIT_TEST) += vcap_model_kunit.o\ndrivers/net/ethernet/microchip/vcap/Makefile:8:vcap-$(CONFIG_DEBUG_FS) += vcap_api_debugfs.o\ndrivers/net/ethernet/microchip/vcap/Makefile-9-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-8-#include \"vcap_api_private.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:9:#include \"vcap_api_debugfs.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-10-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:11:struct vcap_admin_debugfs_info {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-12-\tstruct vcap_control *vctrl;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-15-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:16:struct vcap_port_debugfs_info {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-17-\tstruct vcap_control *vctrl;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-21-/* Dump the keyfields value and mask values */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:22:static void vcap_debugfs_show_rule_keyfield(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-23-\t\t\t\t\t struct vcap_output_print *out,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=116=static void\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:117:vcap_debugfs_show_rule_actionfield(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-118-\t\t\t\t struct vcap_output_print *out,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-157-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:158:static int vcap_debugfs_show_keysets(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-159-\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-190-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:191:static int vcap_debugfs_show_rule_keyset(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-192-\t\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-198-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:199:\tvcap_debugfs_show_keysets(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-200-\tout-\u003eprf(out-\u003edst, \" keyset_sw: %d\\n\", ri-\u003ekeyset_sw);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-204-\t\tkeyfield = vcap_keyfields(vctrl, admin-\u003evtype, ri-\u003edata.keyset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:205:\t\tvcap_debugfs_show_rule_keyfield(vctrl, out, ckf-\u003ectrl.key,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-206-\t\t\t\t\t\tkeyfield, \u0026ckf-\u003edata);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-211-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:212:static int vcap_debugfs_show_rule_actionset(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-213-\t\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-227-\t\t\t\t\t\tri-\u003edata.actionset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:228:\t\tvcap_debugfs_show_rule_actionfield(vctrl, out, caf-\u003ectrl.action,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-229-\t\t\t\t\t\t actionfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=236=static void vcap_show_admin_rule(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-261-\t}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:262:\tvcap_debugfs_show_rule_keyset(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:263:\tvcap_debugfs_show_rule_actionset(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-264-}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=315=static int vcap_show_admin_raw(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-367-/* Show the port configuration and status */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:368:static int vcap_port_debugfs_show(struct seq_file *m, void *unused)\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-369-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:370:\tstruct vcap_port_debugfs_info *info = m-\u003eprivate;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-371-\tstruct vcap_admin *admin;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-383-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:384:DEFINE_SHOW_ATTRIBUTE(vcap_port_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-385-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:386:void vcap_port_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-387-\t\t struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-389-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:390:\tstruct vcap_port_debugfs_info *info;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-391-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-397-\tinfo-\u003endev = ndev;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:398:\tdebugfs_create_file(netdev_name(ndev), 0444, parent, info,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:399:\t\t\t \u0026vcap_port_debugfs_fops);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-400-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:401:EXPORT_SYMBOL_GPL(vcap_port_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-402-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-403-/* Show the full VCAP instance data (rules with all fields) */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:404:static int vcap_debugfs_show(struct seq_file *m, void *unused)\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-405-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:406:\tstruct vcap_admin_debugfs_info *info = m-\u003eprivate;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-407-\tstruct vcap_output_print out = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-417-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:418:DEFINE_SHOW_ATTRIBUTE(vcap_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-419-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-420-/* Show the raw VCAP instance data (rules with address info) */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:421:static int vcap_raw_debugfs_show(struct seq_file *m, void *unused)\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-422-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:423:\tstruct vcap_admin_debugfs_info *info = m-\u003eprivate;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-424-\tstruct vcap_output_print out = {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-434-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:435:DEFINE_SHOW_ATTRIBUTE(vcap_raw_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-436-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:437:struct dentry *vcap_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-438-\t\t\t struct vcap_control *vctrl)\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-439-{\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:440:\tstruct vcap_admin_debugfs_info *info;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-441-\tstruct vcap_admin *admin;\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-444-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:445:\tdir = debugfs_create_dir(\"vcaps\", parent);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-446-\tif (PTR_ERR_OR_ZERO(dir))\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-455-\t\tinfo-\u003eadmin = admin;\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:456:\t\tdebugfs_create_file(name, 0444, dir, info,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:457:\t\t\t\t \u0026vcap_raw_debugfs_fops);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-458-\t\tsprintf(name, \"%s_%d\", vctrl-\u003evcaps[admin-\u003evtype].name,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-459-\t\t\tadmin-\u003evinst);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:460:\t\tdebugfs_create_file(name, 0444, dir, info, \u0026vcap_debugfs_fops);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-461-\t}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-463-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:464:EXPORT_SYMBOL_GPL(vcap_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-465-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-466-#ifdef CONFIG_VCAP_KUNIT_TEST\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:467:#include \"vcap_api_debugfs_kunit.c\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-468-#endif\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-9-#include \u003clinux/types.h\u003e\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:10:#include \u003clinux/debugfs.h\u003e\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-11-#include \u003clinux/netdevice.h\u003e\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-16-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:17:void vcap_port_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-18-\t\t struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-21-/* Create a debugFS entry for a vcap instance */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:22:struct dentry *vcap_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-23-\t\t\t struct vcap_control *vctrl);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-26-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:27:static inline void vcap_port_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-28-\t\t\t\t struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-32-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:33:static inline struct dentry *vcap_debugfs(struct device *dev,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-34-\t\t\t\t\t struct dentry *parent,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-8-#include \"vcap_api_client.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:9:#include \"vcap_api_debugfs.h\"\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-10-#include \"vcap_model_kunit.h\"\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c=475=static void vcap_api_show_admin_rule_test(struct kunit *test)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-541-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:542:static struct kunit_case vcap_api_debugfs_test_cases[] = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-543-\tKUNIT_CASE(vcap_api_addr_keyset_test),\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-549-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:550:static struct kunit_suite vcap_api_debugfs_test_suite = {\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-551-\t.name = \"VCAP_API_DebugFS_Testsuite\",\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:552:\t.test_cases = vcap_api_debugfs_test_cases,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-553-};\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c-554-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c:555:kunit_test_suite(vcap_api_debugfs_test_suite);\n"
} |
| 57/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 52024 output: 35 thoughts: 29 Thoughts: Okay, here's my take on those thoughts, tailored for an expert audience, presented in the first person: **Investigating `vcap_debugfs` Client Dependencies** Alright, so `vcap_debugfs` is clearly exported and accessible to clients. That immediately raises the question: who's *actually* leveraging this functionality? It's essential to understand the usage patterns and potential dependencies to assess its criticality, potential impact of changes, and areas for optimization or security hardening. My next step is undeniably to identify all the callers of `vcap_debugfs`. I need a precise call graph or, at the very least, a comprehensive list of modules, processes, or even specific code locations that are making calls to that function. From there, I can begin to assess risk, understand the overall system dependencies, and start determining the impact that any changes to this function would have. |
| 58/2 | 2026/07/29 10:29 | tool | grepper |
0mArgs:{
"Expression": "vcap_debugfs",
"PathPrefix": "drivers/net/ethernet/microchip/"
}Results: {
"Output": "drivers/net/ethernet/microchip/lan966x/Makefile=18=lan966x-switch-$(CONFIG_LAN966X_DCB) += lan966x_dcb.o\ndrivers/net/ethernet/microchip/lan966x/Makefile:19:lan966x-switch-$(CONFIG_DEBUG_FS) += lan966x_vcap_debugfs.o\ndrivers/net/ethernet/microchip/lan966x/Makefile-20-\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c=707=int lan966x_vcap_init(struct lan966x *lan966x)\n--\ndrivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c-736-\ndrivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c:737:\tdir = vcap_debugfs(lan966x-\u003edev, lan966x-\u003edebugfs_root, ctrl);\ndrivers/net/ethernet/microchip/lan966x/lan966x_vcap_impl.c-738-\tfor (int p = 0; p \u003c lan966x-\u003enum_phys_ports; ++p) {\n--\ndrivers/net/ethernet/microchip/sparx5/Makefile=16=sparx5-switch-$(CONFIG_SPARX5_DCB) += sparx5_dcb.o\ndrivers/net/ethernet/microchip/sparx5/Makefile:17:sparx5-switch-$(CONFIG_DEBUG_FS) += sparx5_vcap_debugfs.o\ndrivers/net/ethernet/microchip/sparx5/Makefile-18-\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_debugfs.c-9-\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_debugfs.c:10:#include \"sparx5_vcap_debugfs.h\"\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_debugfs.c-11-#include \"sparx5_main_regs.h\"\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c-14-#include \"sparx5_vcap_ag_api.h\"\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c:15:#include \"sparx5_vcap_debugfs.h\"\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c-16-\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c=2031=int sparx5_vcap_init(struct sparx5 *sparx5)\n--\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c-2076-\t}\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c:2077:\tdir = vcap_debugfs(sparx5-\u003edev, sparx5-\u003edebugfs_root, ctrl);\ndrivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c-2078-\tfor (idx = 0; idx \u003c consts-\u003en_ports; ++idx)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=16=struct vcap_port_debugfs_info {\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-21-/* Dump the keyfields value and mask values */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:22:static void vcap_debugfs_show_rule_keyfield(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-23-\t\t\t\t\t struct vcap_output_print *out,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=116=static void\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:117:vcap_debugfs_show_rule_actionfield(struct vcap_control *vctrl,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-118-\t\t\t\t struct vcap_output_print *out,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-157-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:158:static int vcap_debugfs_show_keysets(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-159-\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-190-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:191:static int vcap_debugfs_show_rule_keyset(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-192-\t\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-198-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:199:\tvcap_debugfs_show_keysets(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-200-\tout-\u003eprf(out-\u003edst, \" keyset_sw: %d\\n\", ri-\u003ekeyset_sw);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-204-\t\tkeyfield = vcap_keyfields(vctrl, admin-\u003evtype, ri-\u003edata.keyset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:205:\t\tvcap_debugfs_show_rule_keyfield(vctrl, out, ckf-\u003ectrl.key,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-206-\t\t\t\t\t\tkeyfield, \u0026ckf-\u003edata);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-211-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:212:static int vcap_debugfs_show_rule_actionset(struct vcap_rule_internal *ri,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-213-\t\t\t\t\t struct vcap_output_print *out)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-227-\t\t\t\t\t\tri-\u003edata.actionset);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:228:\t\tvcap_debugfs_show_rule_actionfield(vctrl, out, caf-\u003ectrl.action,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-229-\t\t\t\t\t\t actionfield,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=236=static void vcap_show_admin_rule(struct vcap_control *vctrl,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-261-\t}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:262:\tvcap_debugfs_show_rule_keyset(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:263:\tvcap_debugfs_show_rule_actionset(ri, out);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-264-}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=401=EXPORT_SYMBOL_GPL(vcap_port_debugfs);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-403-/* Show the full VCAP instance data (rules with all fields) */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:404:static int vcap_debugfs_show(struct seq_file *m, void *unused)\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-405-{\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-417-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:418:DEFINE_SHOW_ATTRIBUTE(vcap_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-419-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c=435=DEFINE_SHOW_ATTRIBUTE(vcap_raw_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-436-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:437:struct dentry *vcap_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-438-\t\t\t struct vcap_control *vctrl)\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-459-\t\t\tadmin-\u003evinst);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:460:\t\tdebugfs_create_file(name, 0444, dir, info, \u0026vcap_debugfs_fops);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-461-\t}\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-463-}\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c:464:EXPORT_SYMBOL_GPL(vcap_debugfs);\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.c-465-\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h=17=void vcap_port_debugfs(struct device *dev, struct dentry *parent,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-21-/* Create a debugFS entry for a vcap instance */\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:22:struct dentry *vcap_debugfs(struct device *dev, struct dentry *parent,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-23-\t\t\t struct vcap_control *vctrl);\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h=27=static inline void vcap_port_debugfs(struct device *dev, struct dentry *parent,\n--\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-32-\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h:33:static inline struct dentry *vcap_debugfs(struct device *dev,\ndrivers/net/ethernet/microchip/vcap/vcap_api_debugfs.h-34-\t\t\t\t\t struct dentry *parent,\n"
} |
| 59/2 | 2026/07/29 10:29 | llm | patch-evaluator |
0mModel:gemini-3.1-pro-preview Args: null Results: null Tokens: input: 55419 output: 113 thoughts: 802 Thoughts: **WorthFuzzing=false: Unreachable Code in Virtualized Environments** Okay, so I've looked at this patch and here's my breakdown. The only functions that call the code I'm analyzing, `vcap_decode_rule` indirectly through `vcap_get_rule`, are `lan966x_vcap_init` and `sparx5_vcap_init`. Both of these initialization routines, I know, need actual physical hardware to probe – specifically, hardware from Microchip. That immediately tells me, in a virtualized environment like QEMU, this code path will *never* be hit. The `vcap_debugfs` entries, which are also indirectly involved through `vcap_show_admin`, won't even be created. I quickly considered the existence of `vcap_api_debugfs_kunit.c` – a KUnit test. Now, if KUnit tests are built as modules, I can load and run them. But, that's not the point. The crux is whether Syzkaller fuzzes them. And no, it doesn't. Syzkaller doesn't fuzz KUnit tests because they're self-contained unit tests that run automatically, not through userspace interfaces that Syzkaller can interact with. So the KUnit tests are irrelevant here. Then I refocused on the prompt's criteria. It says to return `WorthFuzzing=false` if the changes involve code paths that are *impossible* to reach in virtualized environments, even with software-emulated hardware. This code is part of the Microchip VCAP API, which is a library used by Microchip switch drivers – specifically, Sparx5 and Lan966x. These switch drivers are platform drivers, specifically for Microchip SoCs or PCIe devices, requiring physical hardware. So these code paths *are* unreachable in virtualized environments because the client drivers won't probe, and the VCAP API will never be initialized. Again, the KUnit tests are not relevant to Syzkaller fuzzing. I'm confident in saying that the changes modify code unreachable in virtualized environments. To confirm, I did a quick grep for `vcap_get_rule` and `vcap_debugfs`. The only users are `lan966x` and `sparx5`, both requiring hardware. To be absolutely sure, I checked that `lan966x` is a platform driver for Microchip's LAN966x SoC and `sparx5` is for Microchip's Sparx5 SoC. No upstream QEMU emulations exist for either. So, the code path is unreachable. I am absolutely going to return `WorthFuzzing=false`. I checked the callers of `vcap_decode_rule`: `vcap_get_rule` and `vcap_show_admin`. Both are used by only `lan966x` and `sparx5`. So, there are no other users to consider. I'm definitely returning `WorthFuzzing=false`. The patch modifies unreachable code. |
| 60/2 | 2026/07/29 10:29 | tool | set-results |
0mArgs:{
"EnableConfigs": [],
"FocusSymbols": [],
"Reasoning": "The patch modifies `vcap_decode_rule` in the Microchip VCAP API library. This library is exclusively used by hardware-specific switch drivers (Sparx5 and Lan966x) which require physical hardware (specific Microchip SoCs) that are not emulated in standard QEMU. Consequently, this code path is unreachable in virtualized environments and cannot be fuzzed.",
"WorthFuzzing": false
}Results: {
"EnableConfigs": null,
"FocusSymbols": [],
"Reasoning": "The patch modifies `vcap_decode_rule` in the Microchip VCAP API library. This library is exclusively used by hardware-specific switch drivers (Sparx5 and Lan966x) which require physical hardware (specific Microchip SoCs) that are not emulated in standard QEMU. Consequently, this code path is unreachable in virtualized environments and cannot be fuzzed.",
"WorthFuzzing": false
} |
| Total Calls | Total Tokens | Avg Tokens | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|
| Total Calls | Total Duration (Seconds) | Avg Duration (Seconds) |
|---|