AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/07/15 14:01 flow patch-triage
2m Args: 
null

Results: 
{
  "EnableConfigs": [
    "IDPF",
    "PCIE_PTM"
  ],
  "FocusSymbols": [
    "idpf_probe",
    "idpf_remove"
  ],
  "Reasoning": "The patch fixes a resource leak by ensuring pci_disable_ptm() is called during the driver's remove and probe error paths. This is a functional change in the Intel IDPF PCI driver that can be reached and tested using a PCI device fuzzer.",
  "WorthFuzzing": true
}
1/1 2026/07/15 14:01 action read-patch-diff
0m Args: 
null

Results: 
{
  "PatchDiff": "commit 398644cbd8668390a73b12aa47984600234647c4\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Wed Jul 15 14:01:01 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/ethernet/intel/idpf/idpf_main.c b/drivers/net/ethernet/intel/idpf/idpf_main.c\nindex 0dd741dcfcdb21..f08ce13c20ab06 100644\n--- a/drivers/net/ethernet/intel/idpf/idpf_main.c\n+++ b/drivers/net/ethernet/intel/idpf/idpf_main.c\n@@ -159,6 +159,7 @@ static void idpf_remove(struct pci_dev *pdev)\n \tmutex_destroy(\u0026adapter-\u003equeue_lock);\n \tmutex_destroy(\u0026adapter-\u003evc_buf_lock);\n \n+\tpci_disable_ptm(pdev);\n \tpci_set_drvdata(pdev, NULL);\n \tkfree(adapter);\n }\n@@ -266,7 +267,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\n \tif (err) {\n \t\tpci_err(pdev, \"DMA configuration failed: %pe\\n\", ERR_PTR(err));\n \n-\t\tgoto err_free;\n+\t\tgoto err_disable_ptm;\n \t}\n \n \tpci_set_master(pdev);\n@@ -279,7 +280,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\n \tif (!adapter-\u003einit_wq) {\n \t\tdev_err(dev, \"Failed to allocate init workqueue\\n\");\n \t\terr = -ENOMEM;\n-\t\tgoto err_free;\n+\t\tgoto err_disable_ptm;\n \t}\n \n \tadapter-\u003eserv_wq = alloc_workqueue(\"%s-%s-service\",\n@@ -366,6 +367,8 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\n \tdestroy_workqueue(adapter-\u003eserv_wq);\n err_serv_wq_alloc:\n \tdestroy_workqueue(adapter-\u003einit_wq);\n+err_disable_ptm:\n+\tpci_disable_ptm(pdev);\n err_free:\n \tkfree(adapter);\n \treturn err;\n"
}
2/1 2026/07/15 14:01 agent patch-evaluator
2m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
{
  "EnableConfigs": [
    "IDPF",
    "PCIE_PTM"
  ],
  "FocusSymbols": [
    "idpf_probe",
    "idpf_remove"
  ],
  "Reasoning": "The patch fixes a resource leak by ensuring pci_disable_ptm() is called during the driver's remove and probe error paths. This is a functional change in the Intel IDPF PCI driver that can be reached and tested using a PCI device fuzzer.",
  "WorthFuzzing": true
}

Instruction: 
You are an expert Linux kernel maintainer.
Your job is to review a provided patch series and determine
if it makes functional changes to the kernel that should be fuzzed.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on your internal knowledge of the kernel. You must actively
use your code access tools to examine the actual source code and confirm any assumptions.

Return WorthFuzzing=false if the patch only contains:
- Modifications to Documentation/, Kconfig files, or code comments.
- Purely decorative changes, such as logging (e.g., pr_err, printk) or tracepoints.
- Changes to numeric constants or macros that do not functionally alter execution flow.
- Code paths that are impossible to reach in virtualized environments like GCE or QEMU,
even when utilizing software-emulated hardware (e.g., usb gadget, mac80211_hwsim).

If it modifies reachable core kernel logic, drivers, or architectures, use your code search
tools to verify the code can be executed, then return WorthFuzzing=true.

When returning WorthFuzzing=true, you MUST ALSO:
1. Extract any specific kernel functions that should be heavily fuzzed into FocusSymbols.
   Avoid listing generic hot-path functions to prevent skewed test distributions.
2. Identify any specific CONFIG_ options required to properly test this new/modified feature.
   Go and look into the Kconfig files and check for ifdefs around the code, do not make assumptions.
   Do not list too generic configs (we already have them enabled). Only list those that
   specifically cover the modified code. List them in the EnableConfigs output array,
   and DO NOT add a 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt: 
For your convenience, here is the diff of the changes:
commit 398644cbd8668390a73b12aa47984600234647c4
Author: syz-cluster <triage@syzkaller.com>
Date:   Wed Jul 15 14:01:01 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/net/ethernet/intel/idpf/idpf_main.c b/drivers/net/ethernet/intel/idpf/idpf_main.c
index 0dd741dcfcdb21..f08ce13c20ab06 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_main.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_main.c
@@ -159,6 +159,7 @@ static void idpf_remove(struct pci_dev *pdev)
 	mutex_destroy(&adapter->queue_lock);
 	mutex_destroy(&adapter->vc_buf_lock);
 
+	pci_disable_ptm(pdev);
 	pci_set_drvdata(pdev, NULL);
 	kfree(adapter);
 }
@@ -266,7 +267,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err) {
 		pci_err(pdev, "DMA configuration failed: %pe\n", ERR_PTR(err));
 
-		goto err_free;
+		goto err_disable_ptm;
 	}
 
 	pci_set_master(pdev);
@@ -279,7 +280,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!adapter->init_wq) {
 		dev_err(dev, "Failed to allocate init workqueue\n");
 		err = -ENOMEM;
-		goto err_free;
+		goto err_disable_ptm;
 	}
 
 	adapter->serv_wq = alloc_workqueue("%s-%s-service",
@@ -366,6 +367,8 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	destroy_workqueue(adapter->serv_wq);
 err_serv_wq_alloc:
 	destroy_workqueue(adapter->init_wq);
+err_disable_ptm:
+	pci_disable_ptm(pdev);
 err_free:
 	kfree(adapter);
 	return err;

3/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 2214
							output: 34
							thoughts: 171

Thoughts: 
**Fuzzing the `idpf` Driver: A Preliminary Assessment**

Okay, so I've got this patch – seems like it's adding `pci_disable_ptm(pdev);` in the `idpf_remove` function and the error path of `idpf_probe` within `drivers/net/ethernet/intel/idpf/idpf_main.c`. My immediate thought is, "Is this worth fuzzing?" The driver in question is the `idpf` driver, which from its name – "Intel Infrastructure Data Plane Function" – and location, appears to be an Intel PCI device driver.

The PCI aspect immediately raises a flag. How easily can this be targeted in a virtualized environment? Generally, hardware-specific PCI drivers are tricky to reach without an emulator. So, is there an emulator for `idpf`? That's the question I need to answer. Is this a virtual device or something meant for physical hardware? Time to do some digging. Let's start with a simple grep for "idpf" and see what kind of context we're dealing with. Knowing the exact nature of this device is critical to knowing if this patch merits focused fuzzing.

4/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "idpf",
  "PathPrefix": "drivers/net/ethernet/intel/idpf/"
}

Results: 
{
  "Output": "\nFull output is too long, showing 500 out of 11047 lines.\nUse more precise expression if possible.\n\ndrivers/net/ethernet/intel/idpf/Kconfig=4=config IDPF\n--\ndrivers/net/ethernet/intel/idpf/Kconfig-14-\t  To compile this driver as a module, choose M here. The module\ndrivers/net/ethernet/intel/idpf/Kconfig:15:\t  will be called idpf.\ndrivers/net/ethernet/intel/idpf/Kconfig-16-\n--\ndrivers/net/ethernet/intel/idpf/Kconfig=19=config IDPF_SINGLEQ\ndrivers/net/ethernet/intel/idpf/Kconfig:20:\tbool \"idpf singleq support\"\ndrivers/net/ethernet/intel/idpf/Kconfig-21-\thelp\n--\ndrivers/net/ethernet/intel/idpf/Makefile-5-\ndrivers/net/ethernet/intel/idpf/Makefile:6:obj-$(CONFIG_IDPF) += idpf.o\ndrivers/net/ethernet/intel/idpf/Makefile-7-\ndrivers/net/ethernet/intel/idpf/Makefile:8:idpf-y := \\\ndrivers/net/ethernet/intel/idpf/Makefile:9:\tidpf_controlq.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:10:\tidpf_controlq_setup.o\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:11:\tidpf_dev.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:12:\tidpf_ethtool.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:13:\tidpf_idc.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:14:\tidpf_lib.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:15:\tidpf_main.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:16:\tidpf_txrx.o\t\t\\\ndrivers/net/ethernet/intel/idpf/Makefile:17:\tidpf_virtchnl.o \t\\\ndrivers/net/ethernet/intel/idpf/Makefile:18:\tidpf_vf_dev.o\ndrivers/net/ethernet/intel/idpf/Makefile-19-\ndrivers/net/ethernet/intel/idpf/Makefile:20:idpf-$(CONFIG_IDPF_SINGLEQ)\t+= idpf_singleq_txrx.o\ndrivers/net/ethernet/intel/idpf/Makefile-21-\ndrivers/net/ethernet/intel/idpf/Makefile:22:idpf-$(CONFIG_PTP_1588_CLOCK)\t+= idpf_ptp.o\ndrivers/net/ethernet/intel/idpf/Makefile:23:idpf-$(CONFIG_PTP_1588_CLOCK)\t+= idpf_virtchnl_ptp.o\ndrivers/net/ethernet/intel/idpf/Makefile-24-\ndrivers/net/ethernet/intel/idpf/Makefile:25:idpf-y\t\t\t\t+= xdp.o\ndrivers/net/ethernet/intel/idpf/Makefile:26:idpf-y\t\t\t\t+= xsk.o\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-7-/* Forward declaration */\ndrivers/net/ethernet/intel/idpf/idpf.h:8:struct idpf_adapter;\ndrivers/net/ethernet/intel/idpf/idpf.h:9:struct idpf_vport;\ndrivers/net/ethernet/intel/idpf/idpf.h:10:struct idpf_vport_max_q;\ndrivers/net/ethernet/intel/idpf/idpf.h:11:struct idpf_q_vec_rsrc;\ndrivers/net/ethernet/intel/idpf/idpf.h:12:struct idpf_rss_data;\ndrivers/net/ethernet/intel/idpf/idpf.h-13-\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-24-#include \u003clinux/net/intel/iidc_rdma.h\u003e\ndrivers/net/ethernet/intel/idpf/idpf.h:25:#include \u003clinux/net/intel/iidc_rdma_idpf.h\u003e\ndrivers/net/ethernet/intel/idpf/idpf.h-26-\ndrivers/net/ethernet/intel/idpf/idpf.h-27-#include \"virtchnl2.h\"\ndrivers/net/ethernet/intel/idpf/idpf.h:28:#include \"idpf_txrx.h\"\ndrivers/net/ethernet/intel/idpf/idpf.h:29:#include \"idpf_controlq.h\"\ndrivers/net/ethernet/intel/idpf/idpf.h-30-\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-56-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:57: * struct idpf_mac_filter\ndrivers/net/ethernet/intel/idpf/idpf.h-58- * @list: list member field\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-62- */\ndrivers/net/ethernet/intel/idpf/idpf.h:63:struct idpf_mac_filter {\ndrivers/net/ethernet/intel/idpf/idpf.h-64-\tstruct list_head list;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-70-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:71: * enum idpf_state - State machine to handle bring up\ndrivers/net/ethernet/intel/idpf/idpf.h-72- * @__IDPF_VER_CHECK: Negotiate virtchnl version\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-76- */\ndrivers/net/ethernet/intel/idpf/idpf.h:77:enum idpf_state {\ndrivers/net/ethernet/intel/idpf/idpf.h-78-\t__IDPF_VER_CHECK,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-84-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:85: * enum idpf_flags - Hard reset causes.\ndrivers/net/ethernet/intel/idpf/idpf.h-86- * @IDPF_HR_FUNC_RESET: Hard reset when TxRx timeout\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-93- */\ndrivers/net/ethernet/intel/idpf/idpf.h:94:enum idpf_flags {\ndrivers/net/ethernet/intel/idpf/idpf.h-95-\tIDPF_HR_FUNC_RESET,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-104-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:105: * enum idpf_cap_field - Offsets into capabilities struct for specific caps\ndrivers/net/ethernet/intel/idpf/idpf.h-106- * @IDPF_BASE_CAPS: generic base capabilities\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-117- */\ndrivers/net/ethernet/intel/idpf/idpf.h:118:enum idpf_cap_field {\ndrivers/net/ethernet/intel/idpf/idpf.h-119-\tIDPF_BASE_CAPS\t\t= -1,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-134-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:135: * enum idpf_vport_state - Current vport state\ndrivers/net/ethernet/intel/idpf/idpf.h-136- * @IDPF_VPORT_UP: Vport is up\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-138- */\ndrivers/net/ethernet/intel/idpf/idpf.h:139:enum idpf_vport_state {\ndrivers/net/ethernet/intel/idpf/idpf.h-140-\tIDPF_VPORT_UP,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-144-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:145: * struct idpf_netdev_priv - Struct to store vport back pointer\ndrivers/net/ethernet/intel/idpf/idpf.h-146- * @adapter: Adapter back pointer\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-152- * @tx_max_bufs: Max buffers that can be transmitted with scatter-gather\ndrivers/net/ethernet/intel/idpf/idpf.h:153: * @state: See enum idpf_vport_state\ndrivers/net/ethernet/intel/idpf/idpf.h-154- * @netstats: Packet and byte stats\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-156- */\ndrivers/net/ethernet/intel/idpf/idpf.h:157:struct idpf_netdev_priv {\ndrivers/net/ethernet/intel/idpf/idpf.h:158:\tstruct idpf_adapter *adapter;\ndrivers/net/ethernet/intel/idpf/idpf.h:159:\tstruct idpf_vport *vport;\ndrivers/net/ethernet/intel/idpf/idpf.h-160-\tu32 vport_id;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-170-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:171: * struct idpf_reset_reg - Reset register offsets/masks\ndrivers/net/ethernet/intel/idpf/idpf.h-172- * @rstat: Reset status register\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-174- */\ndrivers/net/ethernet/intel/idpf/idpf.h:175:struct idpf_reset_reg {\ndrivers/net/ethernet/intel/idpf/idpf.h-176-\tvoid __iomem *rstat;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-180-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:181: * struct idpf_vport_max_q - Queue limits\ndrivers/net/ethernet/intel/idpf/idpf.h-182- * @max_rxq: Maximum number of RX queues supported\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-186- */\ndrivers/net/ethernet/intel/idpf/idpf.h:187:struct idpf_vport_max_q {\ndrivers/net/ethernet/intel/idpf/idpf.h-188-\tu16 max_rxq;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-194-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:195: * struct idpf_reg_ops - Device specific register operation function pointers\ndrivers/net/ethernet/intel/idpf/idpf.h-196- * @ctlq_reg_init: Mailbox control queue register initialization\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-202- */\ndrivers/net/ethernet/intel/idpf/idpf.h:203:struct idpf_reg_ops {\ndrivers/net/ethernet/intel/idpf/idpf.h:204:\tvoid (*ctlq_reg_init)(struct idpf_adapter *adapter,\ndrivers/net/ethernet/intel/idpf/idpf.h:205:\t\t\t      struct idpf_ctlq_create_info *cq);\ndrivers/net/ethernet/intel/idpf/idpf.h:206:\tint (*intr_reg_init)(struct idpf_vport *vport,\ndrivers/net/ethernet/intel/idpf/idpf.h:207:\t\t\t     struct idpf_q_vec_rsrc *rsrc);\ndrivers/net/ethernet/intel/idpf/idpf.h:208:\tvoid (*mb_intr_reg_init)(struct idpf_adapter *adapter);\ndrivers/net/ethernet/intel/idpf/idpf.h:209:\tvoid (*reset_reg_init)(struct idpf_adapter *adapter);\ndrivers/net/ethernet/intel/idpf/idpf.h:210:\tvoid (*trigger_reset)(struct idpf_adapter *adapter,\ndrivers/net/ethernet/intel/idpf/idpf.h:211:\t\t\t      enum idpf_flags trig_cause);\ndrivers/net/ethernet/intel/idpf/idpf.h:212:\tvoid (*ptp_reg_init)(const struct idpf_adapter *adapter);\ndrivers/net/ethernet/intel/idpf/idpf.h-213-};\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-221-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:222: * struct idpf_dev_ops - Device specific operations\ndrivers/net/ethernet/intel/idpf/idpf.h-223- * @reg_ops: Register operations\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-226- */\ndrivers/net/ethernet/intel/idpf/idpf.h:227:struct idpf_dev_ops {\ndrivers/net/ethernet/intel/idpf/idpf.h:228:\tstruct idpf_reg_ops reg_ops;\ndrivers/net/ethernet/intel/idpf/idpf.h-229-\ndrivers/net/ethernet/intel/idpf/idpf.h:230:\tint (*idc_init)(struct idpf_adapter *adapter);\ndrivers/net/ethernet/intel/idpf/idpf.h-231-\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-236-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:237: * enum idpf_vport_reset_cause - Vport soft reset causes\ndrivers/net/ethernet/intel/idpf/idpf.h-238- * @IDPF_SR_Q_CHANGE: Soft reset queue change\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-242- */\ndrivers/net/ethernet/intel/idpf/idpf.h:243:enum idpf_vport_reset_cause {\ndrivers/net/ethernet/intel/idpf/idpf.h-244-\tIDPF_SR_Q_CHANGE,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-250-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:251: * enum idpf_vport_flags - Vport flags\ndrivers/net/ethernet/intel/idpf/idpf.h-252- * @IDPF_VPORT_DEL_QUEUES: To send delete queues message\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-254- */\ndrivers/net/ethernet/intel/idpf/idpf.h:255:enum idpf_vport_flags {\ndrivers/net/ethernet/intel/idpf/idpf.h-256-\tIDPF_VPORT_DEL_QUEUES,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-260-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:261: * struct idpf_tstamp_stats - Tx timestamp statistics\ndrivers/net/ethernet/intel/idpf/idpf.h-262- * @stats_sync: See struct u64_stats_sync\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-267- */\ndrivers/net/ethernet/intel/idpf/idpf.h:268:struct idpf_tstamp_stats {\ndrivers/net/ethernet/intel/idpf/idpf.h-269-\tstruct u64_stats_sync stats_sync;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-274-\ndrivers/net/ethernet/intel/idpf/idpf.h:275:struct idpf_port_stats {\ndrivers/net/ethernet/intel/idpf/idpf.h-276-\tstruct u64_stats_sync stats_sync;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-287-\ndrivers/net/ethernet/intel/idpf/idpf.h:288:struct idpf_fsteer_fltr {\ndrivers/net/ethernet/intel/idpf/idpf.h-289-\tstruct list_head list;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-293-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:294: * struct idpf_q_vec_rsrc - handle for queue and vector resources\ndrivers/net/ethernet/intel/idpf/idpf.h-295- * @dev: device pointer for DMA mapping\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-322- */\ndrivers/net/ethernet/intel/idpf/idpf.h:323:struct idpf_q_vec_rsrc {\ndrivers/net/ethernet/intel/idpf/idpf.h-324-\tstruct device\t\t*dev;\ndrivers/net/ethernet/intel/idpf/idpf.h:325:\tstruct idpf_q_vector\t*q_vectors;\ndrivers/net/ethernet/intel/idpf/idpf.h-326-\tu16\t\t\t*q_vector_idxs;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-331-\ndrivers/net/ethernet/intel/idpf/idpf.h:332:\tstruct idpf_txq_group\t*txq_grps;\ndrivers/net/ethernet/intel/idpf/idpf.h-333-\tu32\t\t\ttxq_desc_count;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-342-\tu32\t\t\trxq_model;\ndrivers/net/ethernet/intel/idpf/idpf.h:343:\tstruct idpf_rxq_group\t*rxq_grps;\ndrivers/net/ethernet/intel/idpf/idpf.h-344-\tu16\t\t\tnum_rxq;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-352-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:353: * struct idpf_vport - Handle for netdevices and queue resources\ndrivers/net/ethernet/intel/idpf/idpf.h-354- * @dflt_qv_rsrc: contains default queue and vector resources\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-363- *\t    associated netdev.\ndrivers/net/ethernet/intel/idpf/idpf.h:364: * @flags: See enum idpf_vport_flags\ndrivers/net/ethernet/intel/idpf/idpf.h-365- * @compln_clean_budget: Work budget for completion clean\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-381- */\ndrivers/net/ethernet/intel/idpf/idpf.h:382:struct idpf_vport {\ndrivers/net/ethernet/intel/idpf/idpf.h:383:\tstruct idpf_q_vec_rsrc dflt_qv_rsrc;\ndrivers/net/ethernet/intel/idpf/idpf.h:384:\tstruct idpf_tx_queue **txqs;\ndrivers/net/ethernet/intel/idpf/idpf.h-385-\tu16 num_txq;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-391-\ndrivers/net/ethernet/intel/idpf/idpf.h:392:\tstruct idpf_adapter *adapter;\ndrivers/net/ethernet/intel/idpf/idpf.h-393-\tstruct net_device *netdev;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-404-\ndrivers/net/ethernet/intel/idpf/idpf.h:405:\tstruct idpf_port_stats port_stats;\ndrivers/net/ethernet/intel/idpf/idpf.h-406-\tbool default_vport;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-409-\ndrivers/net/ethernet/intel/idpf/idpf.h:410:\tstruct idpf_ptp_vport_tx_tstamp_caps *tx_tstamp_caps;\ndrivers/net/ethernet/intel/idpf/idpf.h-411-\tstruct kernel_hwtstamp_config tstamp_config;\ndrivers/net/ethernet/intel/idpf/idpf.h-412-\tstruct work_struct tstamp_task;\ndrivers/net/ethernet/intel/idpf/idpf.h:413:\tstruct idpf_tstamp_stats tstamp_stats;\ndrivers/net/ethernet/intel/idpf/idpf.h-414-};\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-416-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:417: * enum idpf_user_flags\ndrivers/net/ethernet/intel/idpf/idpf.h-418- * @__IDPF_USER_FLAG_HSPLIT: header split state\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-422- */\ndrivers/net/ethernet/intel/idpf/idpf.h:423:enum idpf_user_flags {\ndrivers/net/ethernet/intel/idpf/idpf.h-424-\t__IDPF_USER_FLAG_HSPLIT = 0U,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-431-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:432: * struct idpf_rss_data - Associated RSS data\ndrivers/net/ethernet/intel/idpf/idpf.h-433- * @rss_key_size: Size of RSS hash key\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-437- */\ndrivers/net/ethernet/intel/idpf/idpf.h:438:struct idpf_rss_data {\ndrivers/net/ethernet/intel/idpf/idpf.h-439-\tu16 rss_key_size;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-445-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:446: * struct idpf_q_coalesce - User defined coalescing configuration values for\ndrivers/net/ethernet/intel/idpf/idpf.h-447- *\t\t\t   a single queue.\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-454- */\ndrivers/net/ethernet/intel/idpf/idpf.h:455:struct idpf_q_coalesce {\ndrivers/net/ethernet/intel/idpf/idpf.h-456-\tu32 tx_intr_mode;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-462-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:463: * struct idpf_vport_user_config_data - User defined configuration values for\ndrivers/net/ethernet/intel/idpf/idpf.h-464- *\t\t\t\t\teach vport.\ndrivers/net/ethernet/intel/idpf/idpf.h:465: * @rss_data: See struct idpf_rss_data\ndrivers/net/ethernet/intel/idpf/idpf.h-466- * @q_coalesce: Array of per queue coalescing data\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-480- */\ndrivers/net/ethernet/intel/idpf/idpf.h:481:struct idpf_vport_user_config_data {\ndrivers/net/ethernet/intel/idpf/idpf.h:482:\tstruct idpf_rss_data rss_data;\ndrivers/net/ethernet/intel/idpf/idpf.h:483:\tstruct idpf_q_coalesce *q_coalesce;\ndrivers/net/ethernet/intel/idpf/idpf.h-484-\tu16 num_req_tx_qs;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-495-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:496: * enum idpf_vport_config_flags - Vport config flags\ndrivers/net/ethernet/intel/idpf/idpf.h-497- * @IDPF_VPORT_REG_NETDEV: Register netdev\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-500- */\ndrivers/net/ethernet/intel/idpf/idpf.h:501:enum idpf_vport_config_flags {\ndrivers/net/ethernet/intel/idpf/idpf.h-502-\tIDPF_VPORT_REG_NETDEV,\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-507-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:508: * struct idpf_avail_queue_info\ndrivers/net/ethernet/intel/idpf/idpf.h-509- * @avail_rxq: Available RX queues\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-515- */\ndrivers/net/ethernet/intel/idpf/idpf.h:516:struct idpf_avail_queue_info {\ndrivers/net/ethernet/intel/idpf/idpf.h-517-\tu16 avail_rxq;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-523-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:524: * struct idpf_vector_info - Utility structure to pass function arguments as a\ndrivers/net/ethernet/intel/idpf/idpf.h-525- *\t\t\t     structure\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-531- */\ndrivers/net/ethernet/intel/idpf/idpf.h:532:struct idpf_vector_info {\ndrivers/net/ethernet/intel/idpf/idpf.h-533-\tu16 num_req_vecs;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-539-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:540: * struct idpf_vector_lifo - Stack to maintain vector indexes used for vector\ndrivers/net/ethernet/intel/idpf/idpf.h-541- *\t\t\t     distribution algorithm\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-555- */\ndrivers/net/ethernet/intel/idpf/idpf.h:556:struct idpf_vector_lifo {\ndrivers/net/ethernet/intel/idpf/idpf.h-557-\tu16 top;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-563-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:564: * struct idpf_queue_id_reg_chunk - individual queue ID and register chunk\ndrivers/net/ethernet/intel/idpf/idpf.h-565- * @qtail_reg_start: queue tail register offset\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-570- */\ndrivers/net/ethernet/intel/idpf/idpf.h:571:struct idpf_queue_id_reg_chunk {\ndrivers/net/ethernet/intel/idpf/idpf.h-572-\tu64 qtail_reg_start;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-579-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:580: * struct idpf_queue_id_reg_info - queue ID and register chunk info received\ndrivers/net/ethernet/intel/idpf/idpf.h-581- *\t\t\t\t   over the mailbox\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-584- */\ndrivers/net/ethernet/intel/idpf/idpf.h:585:struct idpf_queue_id_reg_info {\ndrivers/net/ethernet/intel/idpf/idpf.h-586-\tu16 num_chunks;\ndrivers/net/ethernet/intel/idpf/idpf.h:587:\tstruct idpf_queue_id_reg_chunk *queue_chunks;\ndrivers/net/ethernet/intel/idpf/idpf.h-588-};\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-590-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:591: * struct idpf_vport_config - Vport configuration data\ndrivers/net/ethernet/intel/idpf/idpf.h:592: * @user_config: see struct idpf_vport_user_config_data\ndrivers/net/ethernet/intel/idpf/idpf.h-593- * @max_q: Maximum possible queues\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-596- * @flow_steer_list_lock: Lock to protect fsteer filters\ndrivers/net/ethernet/intel/idpf/idpf.h:597: * @flags: See enum idpf_vport_config_flags\ndrivers/net/ethernet/intel/idpf/idpf.h-598- */\ndrivers/net/ethernet/intel/idpf/idpf.h:599:struct idpf_vport_config {\ndrivers/net/ethernet/intel/idpf/idpf.h:600:\tstruct idpf_vport_user_config_data user_config;\ndrivers/net/ethernet/intel/idpf/idpf.h:601:\tstruct idpf_vport_max_q max_q;\ndrivers/net/ethernet/intel/idpf/idpf.h:602:\tstruct idpf_queue_id_reg_info qid_reg_info;\ndrivers/net/ethernet/intel/idpf/idpf.h-603-\tspinlock_t mac_filter_list_lock;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-607-\ndrivers/net/ethernet/intel/idpf/idpf.h:608:struct idpf_vc_xn_manager;\ndrivers/net/ethernet/intel/idpf/idpf.h-609-\ndrivers/net/ethernet/intel/idpf/idpf.h:610:#define idpf_for_each_vport(adapter, iter) \\\ndrivers/net/ethernet/intel/idpf/idpf.h:611:\tfor (struct idpf_vport **__##iter = \u0026(adapter)-\u003evports[0], \\\ndrivers/net/ethernet/intel/idpf/idpf.h-612-\t     *iter = (adapter)-\u003emax_vports ? *__##iter : NULL; \\\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-617-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:618: * struct idpf_adapter - Device data struct generated on probe\ndrivers/net/ethernet/intel/idpf/idpf.h-619- * @pdev: PCI device struct given on probe\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-624- * @state: Init state machine\ndrivers/net/ethernet/intel/idpf/idpf.h:625: * @flags: See enum idpf_flags\ndrivers/net/ethernet/intel/idpf/idpf.h:626: * @reset_reg: See struct idpf_reset_reg\ndrivers/net/ethernet/intel/idpf/idpf.h-627- * @hw: Device access data\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-661- * @vcxn_mngr: Virtchnl transaction manager\ndrivers/net/ethernet/intel/idpf/idpf.h:662: * @dev_ops: See idpf_dev_ops\ndrivers/net/ethernet/intel/idpf/idpf.h-663- * @cdev_info: IDC core device info pointer\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-674- */\ndrivers/net/ethernet/intel/idpf/idpf.h:675:struct idpf_adapter {\ndrivers/net/ethernet/intel/idpf/idpf.h-676-\tstruct pci_dev *pdev;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-681-\tu32 mb_wait_count;\ndrivers/net/ethernet/intel/idpf/idpf.h:682:\tenum idpf_state state;\ndrivers/net/ethernet/intel/idpf/idpf.h-683-\tDECLARE_BITMAP(flags, IDPF_FLAGS_NBITS);\ndrivers/net/ethernet/intel/idpf/idpf.h:684:\tstruct idpf_reset_reg reset_reg;\ndrivers/net/ethernet/intel/idpf/idpf.h:685:\tstruct idpf_hw hw;\ndrivers/net/ethernet/intel/idpf/idpf.h-686-\tu16 num_avail_msix;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-691-\tstruct virtchnl2_alloc_vectors *req_vec_chunks;\ndrivers/net/ethernet/intel/idpf/idpf.h:692:\tstruct idpf_q_vector mb_vector;\ndrivers/net/ethernet/intel/idpf/idpf.h:693:\tstruct idpf_vector_lifo vector_stack;\ndrivers/net/ethernet/intel/idpf/idpf.h-694-\tirqreturn_t (*irq_mb_handler)(int irq, void *data);\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-696-\tu32 tx_timeout_count;\ndrivers/net/ethernet/intel/idpf/idpf.h:697:\tstruct idpf_avail_queue_info avail_queues;\ndrivers/net/ethernet/intel/idpf/idpf.h:698:\tstruct idpf_vport **vports;\ndrivers/net/ethernet/intel/idpf/idpf.h-699-\tstruct net_device **netdevs;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-706-\ndrivers/net/ethernet/intel/idpf/idpf.h:707:\tstruct idpf_vport_config **vport_config;\ndrivers/net/ethernet/intel/idpf/idpf.h-708-\tu16 max_vports;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-722-\tstruct virtchnl2_get_capabilities caps;\ndrivers/net/ethernet/intel/idpf/idpf.h:723:\tstruct idpf_vc_xn_manager *vcxn_mngr;\ndrivers/net/ethernet/intel/idpf/idpf.h-724-\ndrivers/net/ethernet/intel/idpf/idpf.h:725:\tstruct idpf_dev_ops dev_ops;\ndrivers/net/ethernet/intel/idpf/idpf.h-726-\tstruct iidc_rdma_core_dev_info *cdev_info;\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-736-\ndrivers/net/ethernet/intel/idpf/idpf.h:737:\tstruct idpf_ptp *ptp;\ndrivers/net/ethernet/intel/idpf/idpf.h-738-};\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-740-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:741: * idpf_is_queue_model_split - check if queue model is split\ndrivers/net/ethernet/intel/idpf/idpf.h-742- * @q_model: queue model single or split\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-745- */\ndrivers/net/ethernet/intel/idpf/idpf.h:746:static inline int idpf_is_queue_model_split(u16 q_model)\ndrivers/net/ethernet/intel/idpf/idpf.h-747-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-751-\ndrivers/net/ethernet/intel/idpf/idpf.h:752:static inline bool idpf_xdp_enabled(const struct idpf_vport *vport)\ndrivers/net/ethernet/intel/idpf/idpf.h-753-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-756-\ndrivers/net/ethernet/intel/idpf/idpf.h:757:#define idpf_is_cap_ena(adapter, field, flag) \\\ndrivers/net/ethernet/intel/idpf/idpf.h:758:\tidpf_is_capability_ena(adapter, false, field, flag)\ndrivers/net/ethernet/intel/idpf/idpf.h:759:#define idpf_is_cap_ena_all(adapter, field, flag) \\\ndrivers/net/ethernet/intel/idpf/idpf.h:760:\tidpf_is_capability_ena(adapter, true, field, flag)\ndrivers/net/ethernet/intel/idpf/idpf.h-761-\ndrivers/net/ethernet/intel/idpf/idpf.h:762:bool idpf_is_capability_ena(struct idpf_adapter *adapter, bool all,\ndrivers/net/ethernet/intel/idpf/idpf.h:763:\t\t\t    enum idpf_cap_field field, u64 flag);\ndrivers/net/ethernet/intel/idpf/idpf.h-764-\ndrivers/net/ethernet/intel/idpf/idpf.h-765-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:766: * idpf_is_rdma_cap_ena - Determine if RDMA is supported\ndrivers/net/ethernet/intel/idpf/idpf.h-767- * @adapter: private data struct\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-770- */\ndrivers/net/ethernet/intel/idpf/idpf.h:771:static inline bool idpf_is_rdma_cap_ena(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-772-{\ndrivers/net/ethernet/intel/idpf/idpf.h:773:\treturn idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_RDMA);\ndrivers/net/ethernet/intel/idpf/idpf.h-774-}\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-817-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:818: * idpf_get_reserved_vecs - Get reserved vectors\ndrivers/net/ethernet/intel/idpf/idpf.h-819- * @adapter: private data struct\ndrivers/net/ethernet/intel/idpf/idpf.h-820- */\ndrivers/net/ethernet/intel/idpf/idpf.h:821:static inline u16 idpf_get_reserved_vecs(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-822-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-826-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:827: * idpf_get_reserved_rdma_vecs - Get reserved RDMA vectors\ndrivers/net/ethernet/intel/idpf/idpf.h-828- * @adapter: private data struct\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-831- */\ndrivers/net/ethernet/intel/idpf/idpf.h:832:static inline u16 idpf_get_reserved_rdma_vecs(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-833-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-837-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:838: * idpf_get_default_vports - Get default number of vports\ndrivers/net/ethernet/intel/idpf/idpf.h-839- * @adapter: private data struct\ndrivers/net/ethernet/intel/idpf/idpf.h-840- */\ndrivers/net/ethernet/intel/idpf/idpf.h:841:static inline u16 idpf_get_default_vports(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-842-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-846-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:847: * idpf_get_max_vports - Get max number of vports\ndrivers/net/ethernet/intel/idpf/idpf.h-848- * @adapter: private data struct\ndrivers/net/ethernet/intel/idpf/idpf.h-849- */\ndrivers/net/ethernet/intel/idpf/idpf.h:850:static inline u16 idpf_get_max_vports(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-851-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-855-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:856: * idpf_get_max_tx_bufs - Get max scatter-gather buffers supported by the device\ndrivers/net/ethernet/intel/idpf/idpf.h-857- * @adapter: private data struct\ndrivers/net/ethernet/intel/idpf/idpf.h-858- */\ndrivers/net/ethernet/intel/idpf/idpf.h:859:static inline unsigned int idpf_get_max_tx_bufs(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-860-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-864-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:865: * idpf_get_min_tx_pkt_len - Get min packet length supported by the device\ndrivers/net/ethernet/intel/idpf/idpf.h-866- * @adapter: private data struct\ndrivers/net/ethernet/intel/idpf/idpf.h-867- */\ndrivers/net/ethernet/intel/idpf/idpf.h:868:static inline u8 idpf_get_min_tx_pkt_len(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-869-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-875-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:876: * idpf_get_mbx_reg_addr - Get BAR0 mailbox register address\ndrivers/net/ethernet/intel/idpf/idpf.h-877- * @adapter: private data struct\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-881- */\ndrivers/net/ethernet/intel/idpf/idpf.h:882:static inline void __iomem *idpf_get_mbx_reg_addr(struct idpf_adapter *adapter,\ndrivers/net/ethernet/intel/idpf/idpf.h-883-\t\t\t\t\t\t  resource_size_t reg_offset)\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-888-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:889: * idpf_get_rstat_reg_addr - Get BAR0 rstat register address\ndrivers/net/ethernet/intel/idpf/idpf.h-890- * @adapter: private data struct\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-894- */\ndrivers/net/ethernet/intel/idpf/idpf.h:895:static inline void __iomem *idpf_get_rstat_reg_addr(struct idpf_adapter *adapter,\ndrivers/net/ethernet/intel/idpf/idpf.h-896-\t\t\t\t\t\t    resource_size_t reg_offset)\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-903-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:904: * idpf_get_reg_addr - Get BAR0 register address\ndrivers/net/ethernet/intel/idpf/idpf.h-905- * @adapter: private data struct\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-909- */\ndrivers/net/ethernet/intel/idpf/idpf.h:910:static inline void __iomem *idpf_get_reg_addr(struct idpf_adapter *adapter,\ndrivers/net/ethernet/intel/idpf/idpf.h-911-\t\t\t\t\t      resource_size_t reg_offset)\ndrivers/net/ethernet/intel/idpf/idpf.h-912-{\ndrivers/net/ethernet/intel/idpf/idpf.h:913:\tstruct idpf_hw *hw = \u0026adapter-\u003ehw;\ndrivers/net/ethernet/intel/idpf/idpf.h-914-\ndrivers/net/ethernet/intel/idpf/idpf.h-915-\tfor (int i = 0; i \u003c hw-\u003enum_lan_regs; i++) {\ndrivers/net/ethernet/intel/idpf/idpf.h:916:\t\tstruct idpf_mmio_reg *region = \u0026hw-\u003elan_regs[i];\ndrivers/net/ethernet/intel/idpf/idpf.h-917-\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-939-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:940: * idpf_is_reset_detected - check if we were reset at some point\ndrivers/net/ethernet/intel/idpf/idpf.h-941- * @adapter: driver specific private structure\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-944- */\ndrivers/net/ethernet/intel/idpf/idpf.h:945:static inline bool idpf_is_reset_detected(struct idpf_adapter *adapter)\ndrivers/net/ethernet/intel/idpf/idpf.h-946-{\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-949-\ndrivers/net/ethernet/intel/idpf/idpf.h:950:\treturn !(readl(idpf_get_mbx_reg_addr(adapter, adapter-\u003ehw.arq-\u003ereg.len)) \u0026\ndrivers/net/ethernet/intel/idpf/idpf.h-951-\t\t adapter-\u003ehw.arq-\u003ereg.len_mask);\n--\ndrivers/net/ethernet/intel/idpf/idpf.h-954-/**\ndrivers/net/ethernet/intel/idpf/idpf.h:955: * idpf_is_reset_in_prog - check if reset is in progress\ndrivers/net/ethernet/intel/idpf/idpf.h-956- * @adapter: driver specific private structure\n\n"
}
5/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 15292
							output: 39
							thoughts: 92

Thoughts: 
**Investigating This PCI Driver**

Okay, so this is a PCI driver. My first thought is always, is there an emulator available? I need to figure out the best way to interact with it, and emulation is usually the easiest route. Let's see if this particular driver has a known emulator or if it's reachable in a GCE/QEMU environment. It's usually the case that Intel IDPF, or similar network devices, is a physical piece of hardware. However, I need to rule out the possibility of a virtualized version. I know the IDPF is usually a physical device. To get the specific PCI IDs for this driver, I should check the source code, specifically `drivers/net/ethernet/intel/idpf/idpf_main.c`.

6/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "idpf_pci_tbl",
  "PathPrefix": "drivers/net/ethernet/intel/idpf/"
}

Results: 
{
  "Output": "drivers/net/ethernet/intel/idpf/idpf_main.c=27=static int idpf_get_device_type(struct pci_dev *pdev)\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-51- * @adapter: adapter to initialize\ndrivers/net/ethernet/intel/idpf/idpf_main.c:52: * @ent: entry in idpf_pci_tbl\ndrivers/net/ethernet/intel/idpf/idpf_main.c-53- *\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c=190=static int idpf_cfg_hw(struct idpf_adapter *adapter)\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-231- * @pdev: PCI device information struct\ndrivers/net/ethernet/intel/idpf/idpf_main.c:232: * @ent: entry in idpf_pci_tbl\ndrivers/net/ethernet/intel/idpf/idpf_main.c-233- *\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c=236=static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-376-\ndrivers/net/ethernet/intel/idpf/idpf_main.c:377:/* idpf_pci_tbl - PCI Dev idpf ID Table\ndrivers/net/ethernet/intel/idpf/idpf_main.c-378- */\ndrivers/net/ethernet/intel/idpf/idpf_main.c:379:static const struct pci_device_id idpf_pci_tbl[] = {\ndrivers/net/ethernet/intel/idpf/idpf_main.c-380-\t{ PCI_VDEVICE(INTEL, IDPF_DEV_ID_PF)},\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-384-};\ndrivers/net/ethernet/intel/idpf/idpf_main.c:385:MODULE_DEVICE_TABLE(pci, idpf_pci_tbl);\ndrivers/net/ethernet/intel/idpf/idpf_main.c-386-\ndrivers/net/ethernet/intel/idpf/idpf_main.c=387=static struct pci_driver idpf_driver = {\ndrivers/net/ethernet/intel/idpf/idpf_main.c-388-\t.name\t\t\t= KBUILD_MODNAME,\ndrivers/net/ethernet/intel/idpf/idpf_main.c:389:\t.id_table\t\t= idpf_pci_tbl,\ndrivers/net/ethernet/intel/idpf/idpf_main.c-390-\t.probe\t\t\t= idpf_probe,\n"
}
7/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 16341
							output: 32
							thoughts: 679

Thoughts: 
**Analyzing a PCI Driver Patch for Fuzzing Potential**

Okay, so I'm looking at a patch related to Intel's `idpf` driver. The core of this seems to be about handling PCI devices, specifically with the IDs `IDPF_DEV_ID_PF` and `IDPF_DEV_ID_VF`. My initial thought is, *is this device emulated in QEMU?* Nope, it's actual hardware. But then I remember, *wait, syzbot reported a bug in `idpf_probe`*?

Okay, *is syzbot fuzzing this driver via some virtual PCI framework?* I immediately think about `syz_pci_device`, and I recall syzkaller *does* have a PCI fuzzer, which injects PCI devices via `vfio` or similar mechanisms. It may even use a fake PCI device. So, syzkaller *can* emulate PCI devices.

Now, the specific patch adds `pci_disable_ptm(pdev);` in both `idpf_remove` and in the error path of `idpf_probe`. So, *is this a functional change?* Yes, it's disabling PTM (Precision Time Measurement). *Is it worth fuzzing?* The change is just that single line. It's a cleanup, fixing a bug where PTM wasn't being disabled, which likely caused a warning or resource leak. *Is there any complex logic to fuzz?* No, it's a simple `pci_disable_ptm(pdev)` call.

The commit message says "syz-cluster: applied patch under review", which tells me that Syzkaller *did* find a bug. However, if the patch only adds `pci_disable_ptm(pdev)`, there's no new logic to fuzz, just a simple fix. *Does it enable any new feature?* Nope. *Does it add new reachable core kernel logic?* Nope. *Does it modify execution flow?* It just calls a function to clean up.

*Should we fuzz it?* If it's *just* a cleanup in the error path, there aren't specific functions to focus on, except maybe `idpf_probe` and `idpf_remove`, but those are already fuzzed by the PCI fuzzer, anyway. Therefore, *is it worth fuzzing?*

I recall the rule: "Return WorthFuzzing=false if the patch only contains: ... 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)." But then I remember that PCI devices CAN be emulated by syzkaller using `syz_pci_device`! So, the question remains: does *this patch* introduce any new logic to be heavily fuzzed? No, it just adds `pci_disable_ptm(pdev)` in the cleanup path. So, let's now check what `pci_disable_ptm` actually *does*.

8/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "pci_disable_ptm",
  "PathPrefix": "drivers/pci/"
}

Results: 
{
  "Output": "drivers/pci/pcie/ptm.c=224=EXPORT_SYMBOL(pci_enable_ptm);\ndrivers/pci/pcie/ptm.c-225-\ndrivers/pci/pcie/ptm.c:226:static void __pci_disable_ptm(struct pci_dev *dev)\ndrivers/pci/pcie/ptm.c-227-{\n--\ndrivers/pci/pcie/ptm.c-239-/**\ndrivers/pci/pcie/ptm.c:240: * pci_disable_ptm() - Disable Precision Time Measurement\ndrivers/pci/pcie/ptm.c-241- * @dev: PCI device\n--\ndrivers/pci/pcie/ptm.c-244- */\ndrivers/pci/pcie/ptm.c:245:void pci_disable_ptm(struct pci_dev *dev)\ndrivers/pci/pcie/ptm.c-246-{\ndrivers/pci/pcie/ptm.c-247-\tif (dev-\u003eptm_enabled) {\ndrivers/pci/pcie/ptm.c:248:\t\t__pci_disable_ptm(dev);\ndrivers/pci/pcie/ptm.c-249-\t\tdev-\u003eptm_enabled = 0;\n--\ndrivers/pci/pcie/ptm.c-251-}\ndrivers/pci/pcie/ptm.c:252:EXPORT_SYMBOL(pci_disable_ptm);\ndrivers/pci/pcie/ptm.c-253-\n--\ndrivers/pci/pcie/ptm.c=258=void pci_suspend_ptm(struct pci_dev *dev)\n--\ndrivers/pci/pcie/ptm.c-260-\tif (dev-\u003eptm_enabled)\ndrivers/pci/pcie/ptm.c:261:\t\t__pci_disable_ptm(dev);\ndrivers/pci/pcie/ptm.c-262-}\n"
}
9/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 18278
							output: 42
							thoughts: 331

Thoughts: 
**Fuzzing Decision for a Simple Cleanup**

Okay, so I'm looking at a pretty straightforward cleanup patch. The initial thought is, "Is this even worth the effort of fuzzing?" The prompt gives a clear heuristic: If it touches core kernel logic, drivers, or architectures, I need to verify its executability with code search tools and then return `WorthFuzzing=true`.

This one *does* touch a driver, `idpf`. That immediately flags it. The next question is executability. Thankfully, I know PCI fuzzing through tools like syzkaller offers a path. So, it can be executed.

Now, do any of the prompt's exclusion criteria apply? Documentation, Kconfig, decorative changes – none of that here. The code path isn't impossible to reach in a virtualized environment. Syzkaller's PCI fuzzer generates random PCI devices, so even if it doesn't *specifically* emulate `idpf`, it can match *any* PCI ID, therefore it can be reached.

However, the change itself is extremely minimal; it's a call to a cleanup function. If I say `WorthFuzzing=true`, I have to justify it. I need to focus the fuzzing effort. What specific functions are touched by this patch? It's `idpf_remove` and `idpf_probe`. Let's dig into those functions.

10/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "idpf_probe",
  "PathPrefix": "drivers/net/ethernet/intel/idpf/idpf_main.c"
}

Results: 
{
  "Output": "drivers/net/ethernet/intel/idpf/idpf_main.c=190=static int idpf_cfg_hw(struct idpf_adapter *adapter)\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-229-/**\ndrivers/net/ethernet/intel/idpf/idpf_main.c:230: * idpf_probe - Device initialization routine\ndrivers/net/ethernet/intel/idpf/idpf_main.c-231- * @pdev: PCI device information struct\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-235- */\ndrivers/net/ethernet/intel/idpf/idpf_main.c:236:static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\ndrivers/net/ethernet/intel/idpf/idpf_main.c-237-{\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c=387=static struct pci_driver idpf_driver = {\n--\ndrivers/net/ethernet/intel/idpf/idpf_main.c-389-\t.id_table\t\t= idpf_pci_tbl,\ndrivers/net/ethernet/intel/idpf/idpf_main.c:390:\t.probe\t\t\t= idpf_probe,\ndrivers/net/ethernet/intel/idpf/idpf_main.c-391-\t.sriov_configure\t= idpf_sriov_configure,\n"
}
11/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 19352
							output: 37
							thoughts: 33

Thoughts: 
Okay, here's my interpretation of these thoughts, summarized in the first person, assuming the context is my area of expertise:

**Checking the IDPF Setup**

Right, so I'm looking at these functions, `idpf_probe` and `idpf_remove`. These are clearly related to the IDPF module, probably initialization and removal routines respectively. First thing I need to do is quickly check the configuration. Is there any enabling configuration for this? Yep, there it is: `CONFIG_IDPF`. Excellent. That's the baseline. Now I know whether this particular IDPF feature is intended to be compiled into this build. Now I can move forward with analyzing the `idpf_probe` and `idpf_remove` routines. I need to understand what's happening here.

12/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "config IDPF",
  "PathPrefix": "drivers/net/ethernet/intel/idpf/Kconfig"
}

Results: 
{
  "Output": "drivers/net/ethernet/intel/idpf/Kconfig-3-\ndrivers/net/ethernet/intel/idpf/Kconfig:4:config IDPF\ndrivers/net/ethernet/intel/idpf/Kconfig-5-\ttristate \"Intel(R) Infrastructure Data Path Function Support\"\n--\ndrivers/net/ethernet/intel/idpf/Kconfig=17=if IDPF\ndrivers/net/ethernet/intel/idpf/Kconfig-18-\ndrivers/net/ethernet/intel/idpf/Kconfig:19:config IDPF_SINGLEQ\ndrivers/net/ethernet/intel/idpf/Kconfig-20-\tbool \"idpf singleq support\"\n"
}
13/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 19770
							output: 47
							thoughts: 187

Thoughts: 
**Fuzzing Decision for the IDPF Driver Patch**

Okay, so I'm looking at this patch and, right off the bat, it seems the relevant configuration is `IDPF`. Now, the question is: is this worth the effort of fuzzing? It's a simple fix, a resource leak, specifically the PTM isn't being disabled. If I'm understanding this correctly, the core functionality hinges around `idpf_probe` and `idpf_remove`. Since the root cause is a simple missing disable of a feature, and assuming the issue is well understood already, because it's already in the pipeline, it's likely a functional change that fixes a problem.

Considering that the patch has likely already been found by syzkaller or another tester, and the fix is functionally sound (disabling PTM), I'm leaning towards the conclusion that this is worthwhile. Let's return `WorthFuzzing=true`. My primary focus should be on the `idpf_probe` and `idpf_remove` functions. I'll need to double check for other configurations to be absolutely sure, and the specific file this patch touches is `drivers/net/ethernet/intel/idpf/idpf_main.c`. Before I proceed, I need to check for any `#ifdef` directives around the code I'm investigating to ensure I have a complete picture of the conditional compilation in this context.

14/2 2026/07/15 14:01 tool read-file
0m Args: 
{
  "File": "drivers/net/ethernet/intel/idpf/idpf_main.c",
  "FirstLine": 140,
  "LineCount": 100
}

Results: 
{
  "Contents": " 140:\t\tdestroy_workqueue(adapter-\u003estats_wq);\n 141:\t\tdestroy_workqueue(adapter-\u003evc_event_wq);\n 142:\t\n 143:\t\tfor (i = 0; i \u003c adapter-\u003emax_vports; i++) {\n 144:\t\t\tif (!adapter-\u003evport_config[i])\n 145:\t\t\t\tcontinue;\n 146:\t\t\tkfree(adapter-\u003evport_config[i]-\u003euser_config.q_coalesce);\n 147:\t\t\tkfree(adapter-\u003evport_config[i]);\n 148:\t\t\tadapter-\u003evport_config[i] = NULL;\n 149:\t\t}\n 150:\t\tkfree(adapter-\u003evport_config);\n 151:\t\tadapter-\u003evport_config = NULL;\n 152:\t\tkfree(adapter-\u003enetdevs);\n 153:\t\tadapter-\u003enetdevs = NULL;\n 154:\t\tkfree(adapter-\u003evcxn_mngr);\n 155:\t\tadapter-\u003evcxn_mngr = NULL;\n 156:\t\n 157:\t\tmutex_destroy(\u0026adapter-\u003evport_ctrl_lock);\n 158:\t\tmutex_destroy(\u0026adapter-\u003evector_lock);\n 159:\t\tmutex_destroy(\u0026adapter-\u003equeue_lock);\n 160:\t\tmutex_destroy(\u0026adapter-\u003evc_buf_lock);\n 161:\t\n 162:\t\tpci_disable_ptm(pdev);\n 163:\t\tpci_set_drvdata(pdev, NULL);\n 164:\t\tkfree(adapter);\n 165:\t}\n 166:\t\n 167:\t/**\n 168:\t * idpf_shutdown - PCI callback for shutting down device\n 169:\t * @pdev: PCI device information struct\n 170:\t */\n 171:\tstatic void idpf_shutdown(struct pci_dev *pdev)\n 172:\t{\n 173:\t\tstruct idpf_adapter *adapter = pci_get_drvdata(pdev);\n 174:\t\n 175:\t\tcancel_delayed_work_sync(\u0026adapter-\u003eserv_task);\n 176:\t\tcancel_delayed_work_sync(\u0026adapter-\u003evc_event_task);\n 177:\t\tidpf_vc_core_deinit(adapter);\n 178:\t\tidpf_deinit_dflt_mbx(adapter);\n 179:\t\n 180:\t\tif (system_state == SYSTEM_POWER_OFF)\n 181:\t\t\tpci_set_power_state(pdev, PCI_D3hot);\n 182:\t}\n 183:\t\n 184:\t/**\n 185:\t * idpf_cfg_hw - Initialize HW struct\n 186:\t * @adapter: adapter to setup hw struct for\n 187:\t *\n 188:\t * Returns 0 on success, negative on failure\n 189:\t */\n 190:\tstatic int idpf_cfg_hw(struct idpf_adapter *adapter)\n 191:\t{\n 192:\t\tresource_size_t res_start, mbx_start, rstat_start;\n 193:\t\tstruct pci_dev *pdev = adapter-\u003epdev;\n 194:\t\tstruct idpf_hw *hw = \u0026adapter-\u003ehw;\n 195:\t\tstruct device *dev = \u0026pdev-\u003edev;\n 196:\t\tlong len;\n 197:\t\n 198:\t\tres_start = pci_resource_start(pdev, 0);\n 199:\t\n 200:\t\t/* Map mailbox space for virtchnl communication */\n 201:\t\tmbx_start = res_start + adapter-\u003edev_ops.static_reg_info[0].start;\n 202:\t\tlen = resource_size(\u0026adapter-\u003edev_ops.static_reg_info[0]);\n 203:\t\thw-\u003embx.vaddr = devm_ioremap(dev, mbx_start, len);\n 204:\t\tif (!hw-\u003embx.vaddr) {\n 205:\t\t\tpci_err(pdev, \"failed to allocate BAR0 mbx region\\n\");\n 206:\t\n 207:\t\t\treturn -ENOMEM;\n 208:\t\t}\n 209:\t\thw-\u003embx.addr_start = adapter-\u003edev_ops.static_reg_info[0].start;\n 210:\t\thw-\u003embx.addr_len = len;\n 211:\t\n 212:\t\t/* Map rstat space for resets */\n 213:\t\trstat_start = res_start + adapter-\u003edev_ops.static_reg_info[1].start;\n 214:\t\tlen = resource_size(\u0026adapter-\u003edev_ops.static_reg_info[1]);\n 215:\t\thw-\u003erstat.vaddr = devm_ioremap(dev, rstat_start, len);\n 216:\t\tif (!hw-\u003erstat.vaddr) {\n 217:\t\t\tpci_err(pdev, \"failed to allocate BAR0 rstat region\\n\");\n 218:\t\n 219:\t\t\treturn -ENOMEM;\n 220:\t\t}\n 221:\t\thw-\u003erstat.addr_start = adapter-\u003edev_ops.static_reg_info[1].start;\n 222:\t\thw-\u003erstat.addr_len = len;\n 223:\t\n 224:\t\thw-\u003eback = adapter;\n 225:\t\n 226:\t\treturn 0;\n 227:\t}\n 228:\t\n 229:\t/**\n 230:\t * idpf_probe - Device initialization routine\n 231:\t * @pdev: PCI device information struct\n 232:\t * @ent: entry in idpf_pci_tbl\n 233:\t *\n 234:\t * Returns 0 on success, negative on failure\n 235:\t */\n 236:\tstatic int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)\n 237:\t{\n 238:\t\tstruct device *dev = \u0026pdev-\u003edev;\n 239:\t\tstruct idpf_adapter *adapter;\n"
}
15/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 21933
							output: 47
							thoughts: 13

Thoughts: 
Okay, let's dive into this. Here's my thought process on checking the rest of `idpf_probe`, rendered as a first-person account, assuming I'm already deep in the weeds of this subject:

**Analyzing the Remainder of `idpf_probe`**

Alright, so we've looked at the initial aspects of `idpf_probe`, and now it's time to thoroughly examine the remaining parts. I need to understand the complete functionality, so this isn't just about a cursory glance. I'm going to carefully dissect what's left, making sure I don't miss any critical details that might impact its overall performance, stability, or security, particularly if this is something being actively deployed. I'll be looking for potential edge cases that haven't been addressed, possible areas of optimization, and any indication of potential bugs or vulnerabilities. My focus is on ensuring a robust and reliable implementation. I'll be asking myself questions: Are there any error handling gaps? Is this part of the code thread-safe? Does the logic here adhere to the standards and best practices that are expected for this context? I want to make sure the code is both functional and well-architected.

16/2 2026/07/15 14:01 tool read-file
0m Args: 
{
  "File": "drivers/net/ethernet/intel/idpf/idpf_main.c",
  "FirstLine": 240,
  "LineCount": 100
}

Results: 
{
  "Contents": " 240:\t\tint err;\n 241:\t\n 242:\t\tadapter = kzalloc_obj(*adapter);\n 243:\t\tif (!adapter)\n 244:\t\t\treturn -ENOMEM;\n 245:\t\n 246:\t\tadapter-\u003ereq_tx_splitq = true;\n 247:\t\tadapter-\u003ereq_rx_splitq = true;\n 248:\t\n 249:\t\tadapter-\u003epdev = pdev;\n 250:\t\terr = pcim_enable_device(pdev);\n 251:\t\tif (err)\n 252:\t\t\tgoto err_free;\n 253:\t\n 254:\t\terr = pcim_request_region(pdev, 0, pci_name(pdev));\n 255:\t\tif (err) {\n 256:\t\t\tpci_err(pdev, \"pcim_request_region failed %pe\\n\", ERR_PTR(err));\n 257:\t\n 258:\t\t\tgoto err_free;\n 259:\t\t}\n 260:\t\n 261:\t\terr = pci_enable_ptm(pdev, NULL);\n 262:\t\tif (err)\n 263:\t\t\tpci_dbg(pdev, \"PCIe PTM is not supported by PCIe bus/controller\\n\");\n 264:\t\n 265:\t\t/* set up for high or low dma */\n 266:\t\terr = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));\n 267:\t\tif (err) {\n 268:\t\t\tpci_err(pdev, \"DMA configuration failed: %pe\\n\", ERR_PTR(err));\n 269:\t\n 270:\t\t\tgoto err_disable_ptm;\n 271:\t\t}\n 272:\t\n 273:\t\tpci_set_master(pdev);\n 274:\t\tpci_set_drvdata(pdev, adapter);\n 275:\t\n 276:\t\tadapter-\u003einit_wq = alloc_workqueue(\"%s-%s-init\",\n 277:\t\t\t\t\t\t   WQ_UNBOUND | WQ_MEM_RECLAIM, 0,\n 278:\t\t\t\t\t\t   dev_driver_string(dev),\n 279:\t\t\t\t\t\t   dev_name(dev));\n 280:\t\tif (!adapter-\u003einit_wq) {\n 281:\t\t\tdev_err(dev, \"Failed to allocate init workqueue\\n\");\n 282:\t\t\terr = -ENOMEM;\n 283:\t\t\tgoto err_disable_ptm;\n 284:\t\t}\n 285:\t\n 286:\t\tadapter-\u003eserv_wq = alloc_workqueue(\"%s-%s-service\",\n 287:\t\t\t\t\t\t   WQ_UNBOUND | WQ_MEM_RECLAIM, 0,\n 288:\t\t\t\t\t\t   dev_driver_string(dev),\n 289:\t\t\t\t\t\t   dev_name(dev));\n 290:\t\tif (!adapter-\u003eserv_wq) {\n 291:\t\t\tdev_err(dev, \"Failed to allocate service workqueue\\n\");\n 292:\t\t\terr = -ENOMEM;\n 293:\t\t\tgoto err_serv_wq_alloc;\n 294:\t\t}\n 295:\t\n 296:\t\tadapter-\u003embx_wq = alloc_workqueue(\"%s-%s-mbx\", WQ_UNBOUND | WQ_HIGHPRI,\n 297:\t\t\t\t\t\t  0, dev_driver_string(dev),\n 298:\t\t\t\t\t\t  dev_name(dev));\n 299:\t\tif (!adapter-\u003embx_wq) {\n 300:\t\t\tdev_err(dev, \"Failed to allocate mailbox workqueue\\n\");\n 301:\t\t\terr = -ENOMEM;\n 302:\t\t\tgoto err_mbx_wq_alloc;\n 303:\t\t}\n 304:\t\n 305:\t\tadapter-\u003estats_wq = alloc_workqueue(\"%s-%s-stats\",\n 306:\t\t\t\t\t\t    WQ_UNBOUND | WQ_MEM_RECLAIM, 0,\n 307:\t\t\t\t\t\t    dev_driver_string(dev),\n 308:\t\t\t\t\t\t    dev_name(dev));\n 309:\t\tif (!adapter-\u003estats_wq) {\n 310:\t\t\tdev_err(dev, \"Failed to allocate workqueue\\n\");\n 311:\t\t\terr = -ENOMEM;\n 312:\t\t\tgoto err_stats_wq_alloc;\n 313:\t\t}\n 314:\t\n 315:\t\tadapter-\u003evc_event_wq = alloc_workqueue(\"%s-%s-vc_event\",\n 316:\t\t\t\t\t\t       WQ_UNBOUND | WQ_MEM_RECLAIM, 0,\n 317:\t\t\t\t\t\t       dev_driver_string(dev),\n 318:\t\t\t\t\t\t       dev_name(dev));\n 319:\t\tif (!adapter-\u003evc_event_wq) {\n 320:\t\t\tdev_err(dev, \"Failed to allocate virtchnl event workqueue\\n\");\n 321:\t\t\terr = -ENOMEM;\n 322:\t\t\tgoto err_vc_event_wq_alloc;\n 323:\t\t}\n 324:\t\n 325:\t\t/* setup msglvl */\n 326:\t\tadapter-\u003emsg_enable = netif_msg_init(-1, IDPF_AVAIL_NETIF_M);\n 327:\t\n 328:\t\terr = idpf_dev_init(adapter, ent);\n 329:\t\tif (err) {\n 330:\t\t\tdev_err(\u0026pdev-\u003edev, \"Unexpected dev ID 0x%x in idpf probe\\n\",\n 331:\t\t\t\tent-\u003edevice);\n 332:\t\t\tgoto destroy_vc_event_wq;\n 333:\t\t}\n 334:\t\n 335:\t\terr = idpf_cfg_hw(adapter);\n 336:\t\tif (err) {\n 337:\t\t\tdev_err(dev, \"Failed to configure HW structure for adapter: %d\\n\",\n 338:\t\t\t\terr);\n 339:\t\t\tgoto destroy_vc_event_wq;\n"
}
17/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 23841
							output: 31
							thoughts: 453

Thoughts: 
**Patch Analysis: idpf driver cleanup**

Okay, so this patch is adding `pci_disable_ptm(pdev)` in two places: `idpf_remove` and the error path of `idpf_probe`. The intent seems clear: it's a minor cleanup to prevent resource leaks or warnings when the driver unloads or fails to load. Functionally, it's pretty small. The core execution flow is altered since this function is now called during unload and on probe failure, so that's something to note.

The question, as always, is whether it's worth fuzzing. Initially, my gut says "no," because fuzzing would mostly involve running `idpf_probe` and `idpf_remove`, which seems basic. But Syzkaller already hits those functions. No complex logic is introduced either. But, the prompt has a list of things *not* to fuzz. Let me review that list.

Hmm, the patch *doesn't* modify documentation, Kconfig, comments, logging, constants that don't change flow, or unreachable code. This patch *does* touch reachable core kernel logic related to PCI driver cleanup. I can confirm this, as PCI devices can be emulated by syzkaller's PCI fuzzer, which makes this code path reachable. So that means I should return `WorthFuzzing=true`. My key focus symbols will be `idpf_probe` and `idpf_remove`. Also, I need to make sure `CONFIG_IDPF` is enabled.

Let me double-check for other relevant configs, just in case. Oh, right, `pci_disable_ptm` is defined in `drivers/pci/pcie/ptm.c`. I need to confirm if there is a config for that. Let me look at that file...and the function...

18/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "config PCIE_PTM",
  "PathPrefix": "drivers/pci/"
}

Results: 
{
  "Output": "drivers/pci/pcie/Kconfig=121=config PCIE_DPC\n--\ndrivers/pci/pcie/Kconfig-130-\ndrivers/pci/pcie/Kconfig:131:config PCIE_PTM\ndrivers/pci/pcie/Kconfig-132-\tbool \"PCI Express Precision Time Measurement support\"\n"
}
19/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 24819
							output: 35
							thoughts: 79

Thoughts: 
Okay, here's my take on those thoughts, framed as my own reasoning:

**Checking PTM Logic Functionality**

Right, so to properly vet this PTM logic, I need to make sure `PCIE_PTM` is actually enabled. Otherwise, trying to test the process will be meaningless. It looks like `pci_disable_ptm` is the crucial function to focus on here.

The catch is, if `PCIE_PTM` isn't enabled, `pci_disable_ptm` *might* just be a no-op, or perhaps only clear a flag, which wouldn't be very helpful for confirming the proper functioning of the entire pathway. So, a critical check is necessary: I need to determine if `pci_disable_ptm` is even defined in the case where `PCIE_PTM` is disabled. That's the key point. If it *is* defined, I need to understand its behavior thoroughly to know how to proceed. I suspect this will tell me a lot about the design choices that were made.

20/2 2026/07/15 14:01 tool grepper
0m Args: 
{
  "Expression": "pci_disable_ptm",
  "PathPrefix": "include/linux/pci.h"
}

Results: 
{
  "Output": "include/linux/pci.h=1978=int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);\ninclude/linux/pci.h:1979:void pci_disable_ptm(struct pci_dev *dev);\ninclude/linux/pci.h-1980-bool pcie_ptm_enabled(struct pci_dev *dev);\n--\ninclude/linux/pci.h=1982=static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)\ninclude/linux/pci.h-1983-{ return -EINVAL; }\ninclude/linux/pci.h:1984:static inline void pci_disable_ptm(struct pci_dev *dev) { }\ninclude/linux/pci.h-1985-static inline bool pcie_ptm_enabled(struct pci_dev *dev)\n"
}
21/2 2026/07/15 14:01 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 25410
							output: 37
							thoughts: 640

Thoughts: 
**Analyzing the Patch for IDPF Driver with PCI-PTM**

Okay, so I'm looking at this patch and, yes, it's pretty clear.  If `CONFIG_PCIE_PTM` is disabled, then this change is effectively a no-op, which means it will not affect anything. So, the right thing to do is to include `PCIE_PTM` in `EnableConfigs`. It's a critical component for the functionality in this diff.

Let me just quickly review the actual patch itself again to confirm. Ah yes, I see: it's adding `pci_disable_ptm(pdev)` in the `idpf_remove` function and placing that function calls in multiple points of the `idpf_probe` function as well. I recognize this driver and these functions. The code changes seem sound.

It's a straightforward functional change related to the PCI interface, so I see this would be reachable by any PCI fuzzing. The required configs are `IDPF` and, as we've already established, `PCIE_PTM`. I'm going to note that the relevant functions are `idpf_probe` and `idpf_remove`.

Now, wait a minute, I want to double-check. Just making sure…Is `IDPF` totally independent? Does `IDPF` depend on anything else that I might be missing? I need to be absolutely certain I understand any dependencies here. I'll need to check the dependencies.

22/2 2026/07/15 14:02 tool grepper
0m Args: 
{
  "Expression": "config IDPF",
  "PathPrefix": "drivers/net/ethernet/intel/idpf/Kconfig"
}

Results: 
{
  "Output": "drivers/net/ethernet/intel/idpf/Kconfig-3-\ndrivers/net/ethernet/intel/idpf/Kconfig:4:config IDPF\ndrivers/net/ethernet/intel/idpf/Kconfig-5-\ttristate \"Intel(R) Infrastructure Data Path Function Support\"\n--\ndrivers/net/ethernet/intel/idpf/Kconfig=17=if IDPF\ndrivers/net/ethernet/intel/idpf/Kconfig-18-\ndrivers/net/ethernet/intel/idpf/Kconfig:19:config IDPF_SINGLEQ\ndrivers/net/ethernet/intel/idpf/Kconfig-20-\tbool \"idpf singleq support\"\n"
}
23/2 2026/07/15 14:02 llm patch-evaluator
1m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 26586
							output: 40
							thoughts: 24

Thoughts: 
Okay, let's dive into this. Here's my thought process on the matter:

**Analyzing the Intel Ethernet Driver Configuration**

Right, I need to figure out the dependencies for the Intel Ethernet driver. To do that, I'm going to take a look at the `Kconfig` file specifically located in `drivers/net/ethernet/intel/idpf/`. That's where all the configuration options and dependencies should be defined. By going through this file, I can build a clear picture of what's required for this driver to function correctly within the kernel build process, and how it relates to other parts of the system. Let's see what we find.

24/2 2026/07/15 14:03 tool read-file
0m Args: 
{
  "File": "drivers/net/ethernet/intel/idpf/Kconfig",
  "FirstLine": 1,
  "LineCount": 20
}

Results: 
{
  "Contents": "   1:\t# SPDX-License-Identifier: GPL-2.0-only\n   2:\t# Copyright (C) 2024 Intel Corporation\n   3:\t\n   4:\tconfig IDPF\n   5:\t\ttristate \"Intel(R) Infrastructure Data Path Function Support\"\n   6:\t\tdepends on PCI_MSI\n   7:\t\tdepends on PTP_1588_CLOCK_OPTIONAL\n   8:\t\tselect DIMLIB\n   9:\t\tselect LIBETH_XDP\n  10:\t\thelp\n  11:\t\t  This driver supports Intel(R) Infrastructure Data Path Function\n  12:\t\t  devices.\n  13:\t\n  14:\t\t  To compile this driver as a module, choose M here. The module\n  15:\t\t  will be called idpf.\n  16:\t\n  17:\tif IDPF\n  18:\t\n  19:\tconfig IDPF_SINGLEQ\n  20:\t\tbool \"idpf singleq support\"\n"
}
25/2 2026/07/15 14:03 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 27044
							output: 111
							thoughts: 236

Thoughts: 
**Fuzzing This Patch: A Sound Decision**

Okay, so I've been looking at this patch and its implications. The dependencies are `PCI_MSI` and `PTP_1588_CLOCK_OPTIONAL`, and since `PCI_MSI` is typically enabled, the key configurations to focus on are `IDPF` and `PCIE_PTM`. I quickly checked if there were any other relevant configs, but no, those are the main ones.

Now, the important question: should we fuzz this? Let's break it down. It’s a functional change, specifically addressing a resource leak. That's a good starting point. Crucially, it modifies reachable core kernel logic within the PCI driver. And, we can leverage syzkaller's PCI fuzzer to exercise this functionality. Given all that, `WorthFuzzing=true` is a definite yes.

The core reasoning here is that the patch rectifies a resource leak by ensuring `pci_disable_ptm()` is called in the driver's remove and probe error paths. This change directly impacts the Intel IDPF PCI driver and can be effectively tested using a PCI device fuzzer.

The critical symbols I'm focusing on are `idpf_probe` and `idpf_remove`. And, of course, the necessary enablement configs are `IDPF` and `PCIE_PTM`. Finally, time to run `set-results`.

26/2 2026/07/15 14:03 tool set-results
0m Args: 
{
  "EnableConfigs": [
    "IDPF",
    "PCIE_PTM"
  ],
  "FocusSymbols": [
    "idpf_probe",
    "idpf_remove"
  ],
  "Reasoning": "The patch fixes a resource leak by ensuring pci_disable_ptm() is called during the driver's remove and probe error paths. This is a functional change in the Intel IDPF PCI driver that can be reached and tested using a PCI device fuzzer.",
  "WorthFuzzing": true
}

Results: 
{
  "EnableConfigs": [
    "IDPF",
    "PCIE_PTM"
  ],
  "FocusSymbols": [
    "idpf_probe",
    "idpf_remove"
  ],
  "Reasoning": "The patch fixes a resource leak by ensuring pci_disable_ptm() is called during the driver's remove and probe error paths. This is a functional change in the Intel IDPF PCI driver that can be reached and tested using a PCI device fuzzer.",
  "WorthFuzzing": true
}
LLM Calls Summary:
Total Calls Total Tokens Avg Tokens Total Duration (Seconds) Avg Duration (Seconds)
Tool Calls Summary:
Total Calls Total Duration (Seconds) Avg Duration (Seconds)