AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/07/03 08:57	flow	patch-triage	0m Args: null Results: { "EnableConfigs": [ "USB_NET_AQC111" ], "FocusSymbols": [ "aqc111_set_mac_addr" ], "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.", "WorthFuzzing": true }
1/1	2026/07/03 08:57	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit 02bb36ec5479e762f651176505f1d8abb5da6ff9\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Fri Jul 3 08:57:20 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c\nindex dd53f413c38f60..da5b74637ee277 100644\n--- a/drivers/net/usb/aqc111.c\n+++ b/drivers/net/usb/aqc111.c\n@@ -471,8 +471,12 @@ static int aqc111_set_mac_addr(struct net_device net, void p)\n \t\treturn ret;\n \n \t/* Set the MAC address /\n-\treturn aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\n-\t\t\t\tETH_ALEN, net-\u003edev_addr);\n+\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\n+\t\t\t ETH_ALEN, net-\u003edev_addr);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\treturn 0;\n }\n \n static int aqc111_vlan_rx_kill_vid(struct net_device net,\n" }
2/1	2026/07/03 08:57	agent	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: { "EnableConfigs": [ "USB_NET_AQC111" ], "FocusSymbols": [ "aqc111_set_mac_addr" ], "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.", "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 02bb36ec5479e762f651176505f1d8abb5da6ff9 Author: syz-cluster <triage@syzkaller.com> Date: Fri Jul 3 08:57:20 2026 +0000 syz-cluster: applied patch under review diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c index dd53f413c38f60..da5b74637ee277 100644 --- a/drivers/net/usb/aqc111.c +++ b/drivers/net/usb/aqc111.c @@ -471,8 +471,12 @@ static int aqc111_set_mac_addr(struct net_device net, void p) return ret; /* Set the MAC address / - return aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN, - ETH_ALEN, net->dev_addr); + ret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN, + ETH_ALEN, net->dev_addr); + if (ret < 0) + return ret; + + return 0; } static int aqc111_vlan_rx_kill_vid(struct net_device net,
3/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 1932 output: 42 thoughts: 245 Thoughts: Analyzing a Network Driver Patch Okay, so I'm looking at this patch for `drivers/net/usb/aqc111.c`. It's touching `aqc111_set_mac_addr`, which is always a critical area. The core of the change is straightforward: they've added an explicit error check after calling `aqc111_write_cmd`. Previously, the function just returned whatever `aqc111_write_cmd` returned, which could have been positive on success (which immediately strikes me as unusual). Now, if `aqc111_write_cmd` returns a value less than zero (indicating an error), the function propagates the negative return code. Otherwise, it now explicitly returns 0, signifying success. Wait a second. The commit text doesn't mention the original behavior. Was `aqc111_write_cmd` really returning positive values on success? That's not the usual convention for these sorts of driver functions. I'll need to double check how `aqc111_write_cmd` is defined. I'll open up that function to verify the range of values it can return. It's possible I'm missing something, or there's a convention I'm not familiar with in this particular codebase, but my initial thought is that the original code was probably incorrect by not handling a possible error indicated by a negative return value. The patch is probably fixing a subtle bug where positive return values were interpreted as errors.
4/2	2026/07/03 08:57	tool	grepper	0m Args: { "Expression": "aqc111_write_cmd", "PathPrefix": "drivers/net/usb/aqc111.c" } Results: { "Output": "drivers/net/usb/aqc111.c=72=static int aqc111_read16_cmd(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-82-\ndrivers/net/usb/aqc111.c:83:static int __aqc111_write_cmd(struct usbnet dev, u8 cmd, u8 reqtype,\ndrivers/net/usb/aqc111.c-84-\t\t\t u16 value, u16 index, u16 size, const void data)\n--\ndrivers/net/usb/aqc111.c-113-\ndrivers/net/usb/aqc111.c:114:static int aqc111_write_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-115-\t\t\t\t u16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c-118-\ndrivers/net/usb/aqc111.c:119:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT \| USB_TYPE_VENDOR \|\ndrivers/net/usb/aqc111.c-120-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-124-\ndrivers/net/usb/aqc111.c:125:static int aqc111_write_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-126-\t\t\t u16 index, u16 size, const void data)\n--\ndrivers/net/usb/aqc111.c-132-\ndrivers/net/usb/aqc111.c:133:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT \| USB_TYPE_VENDOR \|\ndrivers/net/usb/aqc111.c-134-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c=141=static int aqc111_write16_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-147-\ndrivers/net/usb/aqc111.c:148:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-149-}\n--\ndrivers/net/usb/aqc111.c=151=static int aqc111_write16_cmd(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-157-\ndrivers/net/usb/aqc111.c:158:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-159-}\n--\ndrivers/net/usb/aqc111.c=161=static int aqc111_write32_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-167-\ndrivers/net/usb/aqc111.c:168:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-169-}\n--\ndrivers/net/usb/aqc111.c=171=static int aqc111_write32_cmd(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-177-\ndrivers/net/usb/aqc111.c:178:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-179-}\ndrivers/net/usb/aqc111.c-180-\ndrivers/net/usb/aqc111.c:181:static int aqc111_write_cmd_async(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-182-\t\t\t\t u16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c=189=static int aqc111_write16_cmd_async(struct usbnet dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-195-\ndrivers/net/usb/aqc111.c:196:\treturn aqc111_write_cmd_async(dev, cmd, value, index,\ndrivers/net/usb/aqc111.c-197-\t\t\t\t sizeof(tmp), \u0026tmp);\n--\ndrivers/net/usb/aqc111.c=422=static int aqc111_change_mtu(struct net_device net, int new_mtu)\n--\ndrivers/net/usb/aqc111.c-443-\t\t/ RX bulk configuration /\ndrivers/net/usb/aqc111.c:444:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-445-\t\t\t\t 5, 5, buf);\n--\ndrivers/net/usb/aqc111.c=464=static int aqc111_set_mac_addr(struct net_device net, void p)\n--\ndrivers/net/usb/aqc111.c-473-\t/ Set the MAC address /\ndrivers/net/usb/aqc111.c:474:\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-475-\t\t\t ETH_ALEN, net-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c=482=static int aqc111_vlan_rx_kill_vid(struct net_device net,\n--\ndrivers/net/usb/aqc111.c-494-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:495:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-496-\t/* Data /\ndrivers/net/usb/aqc111.c-497-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:498:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-499-\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-502-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:503:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-504-\n--\ndrivers/net/usb/aqc111.c=508=static int aqc111_vlan_rx_add_vid(struct net_device net, __be16 proto, u16 vid)\n--\ndrivers/net/usb/aqc111.c-519-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:520:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-521-\t/* Data /\ndrivers/net/usb/aqc111.c-522-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:523:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-524-\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-527-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:528:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-529-\n--\ndrivers/net/usb/aqc111.c=533=static void aqc111_set_rx_mode(struct net_device net)\n--\ndrivers/net/usb/aqc111.c-557-\ndrivers/net/usb/aqc111.c:558:\t\taqc111_write_cmd_async(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-559-\t\t\t\t SFR_MULTI_FILTER_ARRY,\n--\ndrivers/net/usb/aqc111.c=570=static int aqc111_set_features(struct net_device net,\n--\ndrivers/net/usb/aqc111.c-581-\t\treg8 ^= SFR_TXCOE_TCP \| SFR_TXCOE_UDP;\ndrivers/net/usb/aqc111.c:582:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-583-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-588-\t\treg8 ^= SFR_TXCOE_TCPV6 \| SFR_TXCOE_UDPV6;\ndrivers/net/usb/aqc111.c:589:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-590-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-604-\ndrivers/net/usb/aqc111.c:605:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,\ndrivers/net/usb/aqc111.c-606-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-614-\t\t\t\treg8 = i;\ndrivers/net/usb/aqc111.c:615:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-616-\t\t\t\t\t\t SFR_VLAN_ID_ADDRESS,\n--\ndrivers/net/usb/aqc111.c-622-\t\t\t\treg8 = SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:623:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-624-\t\t\t\t\t\t SFR_VLAN_ID_CONTROL,\n--\ndrivers/net/usb/aqc111.c-629-\t\t\treg8 \|= SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:630:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-631-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-635-\t\t\treg8 \u0026= ~SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:636:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-637-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c=805=static void aqc111_configure_rx(struct usbnet dev,\n--\ndrivers/net/usb/aqc111.c-840-\ndrivers/net/usb/aqc111.c:841:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_INTER_PACKET_GAP_0,\ndrivers/net/usb/aqc111.c-842-\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-843-\ndrivers/net/usb/aqc111.c:844:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TX_PAUSE_RESEND_T, 3, 3, buf);\ndrivers/net/usb/aqc111.c-845-\n--\ndrivers/net/usb/aqc111.c-867-\t/* RX bulk configuration /\ndrivers/net/usb/aqc111.c:868:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 5, 5, buf);\ndrivers/net/usb/aqc111.c-869-\n--\ndrivers/net/usb/aqc111.c=885=static void aqc111_configure_csum_offload(struct usbnet dev)\n--\ndrivers/net/usb/aqc111.c-892-\t}\ndrivers/net/usb/aqc111.c:893:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-894-\n--\ndrivers/net/usb/aqc111.c-901-\ndrivers/net/usb/aqc111.c:902:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-903-}\n--\ndrivers/net/usb/aqc111.c=905=static int aqc111_link_reset(struct usbnet dev)\n--\ndrivers/net/usb/aqc111.c-918-\ndrivers/net/usb/aqc111.c:919:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-920-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-922-\t\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:923:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-924-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-925-\ndrivers/net/usb/aqc111.c:926:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMTX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-927-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-928-\ndrivers/net/usb/aqc111.c:929:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ARC_CTRL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-930-\n--\ndrivers/net/usb/aqc111.c-935-\t\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:936:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-937-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-939-\t\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:940:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-941-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-982-\t\treg8 = SFR_BULK_OUT_FLUSH_EN \| SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:983:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-984-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-985-\t\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:986:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-987-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c=994=static int aqc111_reset(struct usbnet dev)\n--\ndrivers/net/usb/aqc111.c-1013-\t/* Set the MAC address /\ndrivers/net/usb/aqc111.c:1014:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-1015-\t\t\t ETH_ALEN, dev-\u003enet-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c-1017-\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1018:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1019-\ndrivers/net/usb/aqc111.c-1020-\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:1021:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_SWP_CTRL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1022-\n--\ndrivers/net/usb/aqc111.c-1026-\t\t SFR_MONITOR_MODE_RW_FLAG);\ndrivers/net/usb/aqc111.c:1027:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1028-\n--\ndrivers/net/usb/aqc111.c=1326=static int aqc111_suspend(struct usb_interface intf, pm_message_t message)\n--\ndrivers/net/usb/aqc111.c-1348-\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:1349:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-1350-\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1357-\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1358:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1359-\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1373-\t\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1374:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,\ndrivers/net/usb/aqc111.c-1375-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1376-\t\treg8 = SFR_BMRX_DMA_EN;\ndrivers/net/usb/aqc111.c:1377:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-1378-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1379-\t\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:1380:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1381-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1382-\t\treg8 = 0x07;\ndrivers/net/usb/aqc111.c:1383:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-1384-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1385-\t\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1386:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-1387-\t\t\t\t SFR_RX_BULKIN_QTIMR_LOW, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:1388:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-1389-\t\t\t\t SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1390-\t\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1391:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE,\ndrivers/net/usb/aqc111.c-1392-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:1393:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG,\ndrivers/net/usb/aqc111.c-1394-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1401-\ndrivers/net/usb/aqc111.c:1402:\t\taqc111_write_cmd_nopm(dev, AQ_WOL_CFG, 0, 0,\ndrivers/net/usb/aqc111.c-1403-\t\t\t\t WOL_CFG_SIZE, \u0026wol_cfg);\n--\ndrivers/net/usb/aqc111.c=1422=static int aqc111_resume(struct usb_interface *intf)\n--\ndrivers/net/usb/aqc111.c-1436-\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1437:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,\ndrivers/net/usb/aqc111.c-1438-\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1455-\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:1456:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1457-\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1458-\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:1459:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1460-\n" }
5/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 9574 output: 44 thoughts: 256 Thoughts: Analyzing the MAC Address Set Function Okay, so the patch is focused on `aqc111_set_mac_addr`. Let me walk through this. `aqc111_write_cmd` is the key. It calls `__aqc111_write_cmd`, which ultimately calls `usb_control_msg`. Right, and `usb_control_msg` gives back either the number of bytes transferred or a negative error code. This means `aqc111_write_cmd` could be returning a positive integer representing the byte count on success. Before the patch, `aqc111_set_mac_addr` was passing that positive return value directly back up the stack. The change they've made is now returning 0 if the original `ret` from `aqc111_write_cmd` was positive (or zero, which is likely success). And it returns `ret` itself if it's negative (the error code). This looks like a functional change for sure. My immediate concern is that `ndo_set_mac_address`, which `aqc111_set_mac_addr` is probably assigned to, expects a 0 on success. Returning a positive byte count from a successful MAC address set would definitely trip up the caller, potentially leading to incorrect behavior down the line, maybe even in something like `dev_set_mac_address`. I should probably confirm by looking directly at `aqc111_set_mac_addr` within `drivers/net/usb/aqc111.c` to be completely sure.
6/2	2026/07/03 08:57	tool	grepper	0m Args: { "Expression": "aqc111_set_mac_addr", "PathPrefix": "drivers/net/usb/aqc111.c" } Results: { "Output": "drivers/net/usb/aqc111.c=422=static int aqc111_change_mtu(struct net_device net, int new_mtu)\n--\ndrivers/net/usb/aqc111.c-463-\ndrivers/net/usb/aqc111.c:464:static int aqc111_set_mac_addr(struct net_device net, void *p)\ndrivers/net/usb/aqc111.c-465-{\n--\ndrivers/net/usb/aqc111.c=644=static const struct net_device_ops aqc111_netdev_ops = {\n--\ndrivers/net/usb/aqc111.c-650-\t.ndo_change_mtu\t\t= aqc111_change_mtu,\ndrivers/net/usb/aqc111.c:651:\t.ndo_set_mac_address\t= aqc111_set_mac_addr,\ndrivers/net/usb/aqc111.c-652-\t.ndo_validate_addr\t= eth_validate_addr,\n" }
7/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 10524 output: 33 thoughts: 77 Thoughts: Analyzing the `ndo_set_mac_address` Assignment Okay, so I see this task is focused on `.ndo_set_mac_address`. Right, a pretty standard network driver function. This looks like a functional change, not just a bug fix, meaning it's worth a closer look for interesting behavior. The crucial question is, can we actually reach this function? Hmm, it's connected to a USB network driver. That's good news; USB is often accessible through emulation, specifically something like a `dummy_hcd` setup. We can fuzz it! Now, what configs do we need to trigger the target? Let me check the Kconfig for the `aqc111` driver, that should give us some clues about dependencies and build options.
8/2	2026/07/03 08:57	tool	grepper	0m Error: no matches Args: { "Expression": "aqc111", "PathPrefix": "drivers/net/usb/Kconfig" } Results: { "error": "no matches" }
9/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 10812 output: 31 thoughts: 34 Thoughts: Okay, here's my understanding, formatted as requested: Investigating the AQC111 Driver Build Configuration Right, so I need to figure out how the `aqc111.o` driver is handled in the build process. My first instinct, given my experience, is to jump straight into the likely configuration files within the kernel source. I'm thinking, most likely, the Makefile will define the build rules and dependencies, and the Kconfig file will control the enabling or disabling of the driver through a configuration option. Therefore, I will begin by examining the `drivers/net/usb/Makefile` and `drivers/net/usb/Kconfig` files. That should give me a good handle on how the AQC111 driver is integrated into the build system.
10/2	2026/07/03 08:57	tool	grepper	0m Args: { "Expression": "aqc111", "PathPrefix": "drivers/net/usb/" } Results: { "Output": "\nFull output is too long, showing 500 out of 895 lines.\nUse more precise expression if possible.\n\ndrivers/net/usb/Makefile=42=obj-$(CONFIG_USB_NET_CH9200)\t+= ch9200.o\ndrivers/net/usb/Makefile:43:obj-$(CONFIG_USB_NET_AQC111)\t+= aqc111.o\ndrivers/net/usb/Makefile-44-obj-$(CONFIG_USB_RTL8153_ECM)\t+= r8153_ecm.o\n--\ndrivers/net/usb/aqc111.c-20-\ndrivers/net/usb/aqc111.c:21:#include \"aqc111.h\"\ndrivers/net/usb/aqc111.c-22-\ndrivers/net/usb/aqc111.c:23:static int aqc111_read_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-24-\t\t\t\tu16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c-41-\ndrivers/net/usb/aqc111.c:42:static int aqc111_read_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-43-\t\t\t u16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c-60-\ndrivers/net/usb/aqc111.c:61:static int aqc111_read16_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-62-\t\t\t\t u16 index, u16 data)\n--\ndrivers/net/usb/aqc111.c-65-\ndrivers/net/usb/aqc111.c:66:\tret = aqc111_read_cmd_nopm(dev, cmd, value, index, sizeof(data), data);\ndrivers/net/usb/aqc111.c-67-\tle16_to_cpus(data);\n--\ndrivers/net/usb/aqc111.c-71-\ndrivers/net/usb/aqc111.c:72:static int aqc111_read16_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-73-\t\t\t u16 index, u16 data)\n--\ndrivers/net/usb/aqc111.c-76-\ndrivers/net/usb/aqc111.c:77:\tret = aqc111_read_cmd(dev, cmd, value, index, sizeof(data), data);\ndrivers/net/usb/aqc111.c-78-\tle16_to_cpus(data);\n--\ndrivers/net/usb/aqc111.c-82-\ndrivers/net/usb/aqc111.c:83:static int __aqc111_write_cmd(struct usbnet dev, u8 cmd, u8 reqtype,\ndrivers/net/usb/aqc111.c-84-\t\t\t u16 value, u16 index, u16 size, const void data)\n--\ndrivers/net/usb/aqc111.c-113-\ndrivers/net/usb/aqc111.c:114:static int aqc111_write_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-115-\t\t\t\t u16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c-118-\ndrivers/net/usb/aqc111.c:119:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT \| USB_TYPE_VENDOR \|\ndrivers/net/usb/aqc111.c-120-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-124-\ndrivers/net/usb/aqc111.c:125:static int aqc111_write_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-126-\t\t\t u16 index, u16 size, const void data)\n--\ndrivers/net/usb/aqc111.c-132-\ndrivers/net/usb/aqc111.c:133:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT \| USB_TYPE_VENDOR \|\ndrivers/net/usb/aqc111.c-134-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-140-\ndrivers/net/usb/aqc111.c:141:static int aqc111_write16_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-142-\t\t\t\t u16 index, u16 data)\n--\ndrivers/net/usb/aqc111.c-147-\ndrivers/net/usb/aqc111.c:148:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-149-}\ndrivers/net/usb/aqc111.c-150-\ndrivers/net/usb/aqc111.c:151:static int aqc111_write16_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-152-\t\t\t u16 index, u16 data)\n--\ndrivers/net/usb/aqc111.c-157-\ndrivers/net/usb/aqc111.c:158:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-159-}\ndrivers/net/usb/aqc111.c-160-\ndrivers/net/usb/aqc111.c:161:static int aqc111_write32_cmd_nopm(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-162-\t\t\t\t u16 index, u32 data)\n--\ndrivers/net/usb/aqc111.c-167-\ndrivers/net/usb/aqc111.c:168:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-169-}\ndrivers/net/usb/aqc111.c-170-\ndrivers/net/usb/aqc111.c:171:static int aqc111_write32_cmd(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-172-\t\t\t u16 index, u32 data)\n--\ndrivers/net/usb/aqc111.c-177-\ndrivers/net/usb/aqc111.c:178:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-179-}\ndrivers/net/usb/aqc111.c-180-\ndrivers/net/usb/aqc111.c:181:static int aqc111_write_cmd_async(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-182-\t\t\t\t u16 index, u16 size, void data)\n--\ndrivers/net/usb/aqc111.c-188-\ndrivers/net/usb/aqc111.c:189:static int aqc111_write16_cmd_async(struct usbnet dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-190-\t\t\t\t u16 index, u16 data)\n--\ndrivers/net/usb/aqc111.c-195-\ndrivers/net/usb/aqc111.c:196:\treturn aqc111_write_cmd_async(dev, cmd, value, index,\ndrivers/net/usb/aqc111.c-197-\t\t\t\t sizeof(tmp), \u0026tmp);\n--\ndrivers/net/usb/aqc111.c-199-\ndrivers/net/usb/aqc111.c:200:static void aqc111_get_drvinfo(struct net_device net,\ndrivers/net/usb/aqc111.c-201-\t\t\t struct ethtool_drvinfo info)\n--\ndrivers/net/usb/aqc111.c-203-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:204:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-205-\n--\ndrivers/net/usb/aqc111.c-208-\tsnprintf(info-\u003efw_version, sizeof(info-\u003efw_version), \"%u.%u.%u\",\ndrivers/net/usb/aqc111.c:209:\t\t aqc111_data-\u003efw_ver.major,\ndrivers/net/usb/aqc111.c:210:\t\t aqc111_data-\u003efw_ver.minor,\ndrivers/net/usb/aqc111.c:211:\t\t aqc111_data-\u003efw_ver.rev);\ndrivers/net/usb/aqc111.c-212-}\ndrivers/net/usb/aqc111.c-213-\ndrivers/net/usb/aqc111.c:214:static void aqc111_get_wol(struct net_device net,\ndrivers/net/usb/aqc111.c-215-\t\t\t struct ethtool_wolinfo wolinfo)\n--\ndrivers/net/usb/aqc111.c-217-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:218:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-219-\n--\ndrivers/net/usb/aqc111.c-222-\ndrivers/net/usb/aqc111.c:223:\tif (aqc111_data-\u003ewol_flags \u0026 AQ_WOL_FLAG_MP)\ndrivers/net/usb/aqc111.c-224-\t\twolinfo-\u003ewolopts \|= WAKE_MAGIC;\n--\ndrivers/net/usb/aqc111.c-226-\ndrivers/net/usb/aqc111.c:227:static int aqc111_set_wol(struct net_device net,\ndrivers/net/usb/aqc111.c-228-\t\t\t struct ethtool_wolinfo wolinfo)\n--\ndrivers/net/usb/aqc111.c-230-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:231:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-232-\n--\ndrivers/net/usb/aqc111.c-235-\ndrivers/net/usb/aqc111.c:236:\taqc111_data-\u003ewol_flags = 0;\ndrivers/net/usb/aqc111.c-237-\tif (wolinfo-\u003ewolopts \u0026 WAKE_MAGIC)\ndrivers/net/usb/aqc111.c:238:\t\taqc111_data-\u003ewol_flags \|= AQ_WOL_FLAG_MP;\ndrivers/net/usb/aqc111.c-239-\n--\ndrivers/net/usb/aqc111.c-242-\ndrivers/net/usb/aqc111.c:243:static void aqc111_speed_to_link_mode(u32 speed,\ndrivers/net/usb/aqc111.c-244-\t\t\t\t struct ethtool_link_ksettings elk)\n--\ndrivers/net/usb/aqc111.c-265-\ndrivers/net/usb/aqc111.c:266:static int aqc111_get_link_ksettings(struct net_device net,\ndrivers/net/usb/aqc111.c-267-\t\t\t\t struct ethtool_link_ksettings elk)\n--\ndrivers/net/usb/aqc111.c-269-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:270:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-271-\tenum usb_device_speed usb_speed = dev-\u003eudev-\u003espeed;\n--\ndrivers/net/usb/aqc111.c-292-\ndrivers/net/usb/aqc111.c:293:\tif (aqc111_data-\u003eautoneg)\ndrivers/net/usb/aqc111.c-294-\t\tlinkmode_copy(elk-\u003elink_modes.advertising,\n--\ndrivers/net/usb/aqc111.c-296-\telse\ndrivers/net/usb/aqc111.c:297:\t\taqc111_speed_to_link_mode(aqc111_data-\u003eadvertised_speed, elk);\ndrivers/net/usb/aqc111.c-298-\ndrivers/net/usb/aqc111.c:299:\telk-\u003ebase.autoneg = aqc111_data-\u003eautoneg;\ndrivers/net/usb/aqc111.c-300-\ndrivers/net/usb/aqc111.c:301:\tswitch (aqc111_data-\u003elink_speed) {\ndrivers/net/usb/aqc111.c-302-\tcase AQ_INT_SPEED_5G:\n--\ndrivers/net/usb/aqc111.c-320-\ndrivers/net/usb/aqc111.c:321:static void aqc111_set_phy_speed(struct usbnet dev, u8 autoneg, u16 speed)\ndrivers/net/usb/aqc111.c-322-{\ndrivers/net/usb/aqc111.c:323:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-324-\ndrivers/net/usb/aqc111.c:325:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_ADV_MASK;\ndrivers/net/usb/aqc111.c:326:\taqc111_data-\u003ephy_cfg \|= AQ_PAUSE;\ndrivers/net/usb/aqc111.c:327:\taqc111_data-\u003ephy_cfg \|= AQ_ASYM_PAUSE;\ndrivers/net/usb/aqc111.c:328:\taqc111_data-\u003ephy_cfg \|= AQ_DOWNSHIFT;\ndrivers/net/usb/aqc111.c:329:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_DSH_RETRIES_MASK;\ndrivers/net/usb/aqc111.c:330:\taqc111_data-\u003ephy_cfg \|= (3 \u003c\u003c AQ_DSH_RETRIES_SHIFT) \u0026\ndrivers/net/usb/aqc111.c-331-\t\t\t\tAQ_DSH_RETRIES_MASK;\n--\ndrivers/net/usb/aqc111.c-335-\t\tcase SPEED_5000:\ndrivers/net/usb/aqc111.c:336:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_5G;\ndrivers/net/usb/aqc111.c-337-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-338-\t\tcase SPEED_2500:\ndrivers/net/usb/aqc111.c:339:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_2G5;\ndrivers/net/usb/aqc111.c-340-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-341-\t\tcase SPEED_1000:\ndrivers/net/usb/aqc111.c:342:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_1G;\ndrivers/net/usb/aqc111.c-343-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-344-\t\tcase SPEED_100:\ndrivers/net/usb/aqc111.c:345:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_100M;\ndrivers/net/usb/aqc111.c-346-\t\t\t/ fall-through /\n--\ndrivers/net/usb/aqc111.c-350-\t\tcase SPEED_5000:\ndrivers/net/usb/aqc111.c:351:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_5G;\ndrivers/net/usb/aqc111.c-352-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-353-\t\tcase SPEED_2500:\ndrivers/net/usb/aqc111.c:354:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_2G5;\ndrivers/net/usb/aqc111.c-355-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-356-\t\tcase SPEED_1000:\ndrivers/net/usb/aqc111.c:357:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_1G;\ndrivers/net/usb/aqc111.c-358-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-359-\t\tcase SPEED_100:\ndrivers/net/usb/aqc111.c:360:\t\t\taqc111_data-\u003ephy_cfg \|= AQ_ADV_100M;\ndrivers/net/usb/aqc111.c-361-\t\t\tbreak;\n--\ndrivers/net/usb/aqc111.c-364-\ndrivers/net/usb/aqc111.c:365:\taqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, \u0026aqc111_data-\u003ephy_cfg);\ndrivers/net/usb/aqc111.c-366-}\ndrivers/net/usb/aqc111.c-367-\ndrivers/net/usb/aqc111.c:368:static int aqc111_set_link_ksettings(struct net_device net,\ndrivers/net/usb/aqc111.c-369-\t\t\t\t const struct ethtool_link_ksettings elk)\n--\ndrivers/net/usb/aqc111.c-371-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:372:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-373-\tenum usb_device_speed usb_speed = dev-\u003eudev-\u003espeed;\n--\ndrivers/net/usb/aqc111.c-377-\tif (autoneg == AUTONEG_ENABLE) {\ndrivers/net/usb/aqc111.c:378:\t\tif (aqc111_data-\u003eautoneg != AUTONEG_ENABLE) {\ndrivers/net/usb/aqc111.c:379:\t\t\taqc111_data-\u003eautoneg = AUTONEG_ENABLE;\ndrivers/net/usb/aqc111.c:380:\t\t\taqc111_data-\u003eadvertised_speed =\ndrivers/net/usb/aqc111.c-381-\t\t\t\t\t(usb_speed == USB_SPEED_SUPER) ?\ndrivers/net/usb/aqc111.c-382-\t\t\t\t\t SPEED_5000 : SPEED_1000;\ndrivers/net/usb/aqc111.c:383:\t\t\taqc111_set_phy_speed(dev, aqc111_data-\u003eautoneg,\ndrivers/net/usb/aqc111.c:384:\t\t\t\t\t aqc111_data-\u003eadvertised_speed);\ndrivers/net/usb/aqc111.c-385-\t\t}\n--\ndrivers/net/usb/aqc111.c-399-\ndrivers/net/usb/aqc111.c:400:\t\taqc111_data-\u003eautoneg = AUTONEG_DISABLE;\ndrivers/net/usb/aqc111.c-401-\t\tif (speed != SPEED_UNKNOWN)\ndrivers/net/usb/aqc111.c:402:\t\t\taqc111_data-\u003eadvertised_speed = speed;\ndrivers/net/usb/aqc111.c-403-\ndrivers/net/usb/aqc111.c:404:\t\taqc111_set_phy_speed(dev, aqc111_data-\u003eautoneg,\ndrivers/net/usb/aqc111.c:405:\t\t\t\t aqc111_data-\u003eadvertised_speed);\ndrivers/net/usb/aqc111.c-406-\t}\n--\ndrivers/net/usb/aqc111.c-410-\ndrivers/net/usb/aqc111.c:411:static const struct ethtool_ops aqc111_ethtool_ops = {\ndrivers/net/usb/aqc111.c:412:\t.get_drvinfo = aqc111_get_drvinfo,\ndrivers/net/usb/aqc111.c:413:\t.get_wol = aqc111_get_wol,\ndrivers/net/usb/aqc111.c:414:\t.set_wol = aqc111_set_wol,\ndrivers/net/usb/aqc111.c-415-\t.get_msglevel = usbnet_get_msglevel,\n--\ndrivers/net/usb/aqc111.c-417-\t.get_link = ethtool_op_get_link,\ndrivers/net/usb/aqc111.c:418:\t.get_link_ksettings = aqc111_get_link_ksettings,\ndrivers/net/usb/aqc111.c:419:\t.set_link_ksettings = aqc111_set_link_ksettings\ndrivers/net/usb/aqc111.c-420-};\ndrivers/net/usb/aqc111.c-421-\ndrivers/net/usb/aqc111.c:422:static int aqc111_change_mtu(struct net_device net, int new_mtu)\ndrivers/net/usb/aqc111.c-423-{\n--\ndrivers/net/usb/aqc111.c-430-\ndrivers/net/usb/aqc111.c:431:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,\ndrivers/net/usb/aqc111.c-432-\t\t\t 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-437-\ndrivers/net/usb/aqc111.c:438:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,\ndrivers/net/usb/aqc111.c-439-\t\t\t 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-443-\t\t/* RX bulk configuration /\ndrivers/net/usb/aqc111.c:444:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-445-\t\t\t\t 5, 5, buf);\n--\ndrivers/net/usb/aqc111.c-457-\ndrivers/net/usb/aqc111.c:458:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW,\ndrivers/net/usb/aqc111.c-459-\t\t\t 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-463-\ndrivers/net/usb/aqc111.c:464:static int aqc111_set_mac_addr(struct net_device net, void p)\ndrivers/net/usb/aqc111.c-465-{\n--\ndrivers/net/usb/aqc111.c-473-\t/ Set the MAC address /\ndrivers/net/usb/aqc111.c:474:\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-475-\t\t\t ETH_ALEN, net-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c-481-\ndrivers/net/usb/aqc111.c:482:static int aqc111_vlan_rx_kill_vid(struct net_device net,\ndrivers/net/usb/aqc111.c-483-\t\t\t\t __be16 proto, u16 vid)\n--\ndrivers/net/usb/aqc111.c-489-\ndrivers/net/usb/aqc111.c:490:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-491-\tvlan_ctrl = reg8;\n--\ndrivers/net/usb/aqc111.c-494-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:495:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-496-\t/* Data /\ndrivers/net/usb/aqc111.c-497-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:498:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:499:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-500-\treg16 \u0026= ~(1 \u003c\u003c (vid % 16));\ndrivers/net/usb/aqc111.c:501:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-502-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:503:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-504-\n--\ndrivers/net/usb/aqc111.c-507-\ndrivers/net/usb/aqc111.c:508:static int aqc111_vlan_rx_add_vid(struct net_device net, __be16 proto, u16 vid)\ndrivers/net/usb/aqc111.c-509-{\n--\ndrivers/net/usb/aqc111.c-514-\ndrivers/net/usb/aqc111.c:515:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-516-\tvlan_ctrl = reg8;\n--\ndrivers/net/usb/aqc111.c-519-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:520:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-521-\t/* Data /\ndrivers/net/usb/aqc111.c-522-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:523:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:524:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-525-\treg16 \|= (1 \u003c\u003c (vid % 16));\ndrivers/net/usb/aqc111.c:526:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-527-\treg8 = vlan_ctrl \| SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:528:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-529-\n--\ndrivers/net/usb/aqc111.c-532-\ndrivers/net/usb/aqc111.c:533:static void aqc111_set_rx_mode(struct net_device net)\ndrivers/net/usb/aqc111.c-534-{\ndrivers/net/usb/aqc111.c-535-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:536:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-537-\tint mc_count = 0;\n--\ndrivers/net/usb/aqc111.c-540-\ndrivers/net/usb/aqc111.c:541:\taqc111_data-\u003erxctl \u0026= ~(SFR_RX_CTL_PRO \| SFR_RX_CTL_AMALL \|\ndrivers/net/usb/aqc111.c-542-\t\t\t\tSFR_RX_CTL_AM);\n--\ndrivers/net/usb/aqc111.c-544-\tif (net-\u003eflags \u0026 IFF_PROMISC) {\ndrivers/net/usb/aqc111.c:545:\t\taqc111_data-\u003erxctl \|= SFR_RX_CTL_PRO;\ndrivers/net/usb/aqc111.c-546-\t} else if ((net-\u003eflags \u0026 IFF_ALLMULTI) \|\| mc_count \u003e AQ_MAX_MCAST) {\ndrivers/net/usb/aqc111.c:547:\t\taqc111_data-\u003erxctl \|= SFR_RX_CTL_AMALL;\ndrivers/net/usb/aqc111.c-548-\t} else if (!netdev_mc_empty(net)) {\n--\ndrivers/net/usb/aqc111.c-557-\ndrivers/net/usb/aqc111.c:558:\t\taqc111_write_cmd_async(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-559-\t\t\t\t SFR_MULTI_FILTER_ARRY,\n--\ndrivers/net/usb/aqc111.c-562-\ndrivers/net/usb/aqc111.c:563:\t\taqc111_data-\u003erxctl \|= SFR_RX_CTL_AM;\ndrivers/net/usb/aqc111.c-564-\t}\ndrivers/net/usb/aqc111.c-565-\ndrivers/net/usb/aqc111.c:566:\taqc111_write16_cmd_async(dev, AQ_ACCESS_MAC, SFR_RX_CTL,\ndrivers/net/usb/aqc111.c:567:\t\t\t\t 2, \u0026aqc111_data-\u003erxctl);\ndrivers/net/usb/aqc111.c-568-}\ndrivers/net/usb/aqc111.c-569-\ndrivers/net/usb/aqc111.c:570:static int aqc111_set_features(struct net_device net,\ndrivers/net/usb/aqc111.c-571-\t\t\t netdev_features_t features)\n--\ndrivers/net/usb/aqc111.c-573-\tstruct usbnet dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:574:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-575-\tnetdev_features_t changed = net-\u003efeatures ^ features;\n--\ndrivers/net/usb/aqc111.c-579-\tif (changed \u0026 NETIF_F_IP_CSUM) {\ndrivers/net/usb/aqc111.c:580:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-581-\t\treg8 ^= SFR_TXCOE_TCP \| SFR_TXCOE_UDP;\ndrivers/net/usb/aqc111.c:582:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-583-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-586-\tif (changed \u0026 NETIF_F_IPV6_CSUM) {\ndrivers/net/usb/aqc111.c:587:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-588-\t\treg8 ^= SFR_TXCOE_TCPV6 \| SFR_TXCOE_UDPV6;\ndrivers/net/usb/aqc111.c:589:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-590-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-593-\tif (changed \u0026 NETIF_F_RXCSUM) {\ndrivers/net/usb/aqc111.c:594:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-595-\t\tif (features \u0026 NETIF_F_RXCSUM) {\ndrivers/net/usb/aqc111.c:596:\t\t\taqc111_data-\u003erx_checksum = 1;\ndrivers/net/usb/aqc111.c-597-\t\t\treg8 \u0026= ~(SFR_RXCOE_IP \| SFR_RXCOE_TCP \| SFR_RXCOE_UDP \|\n--\ndrivers/net/usb/aqc111.c-599-\t\t} else {\ndrivers/net/usb/aqc111.c:600:\t\t\taqc111_data-\u003erx_checksum = 0;\ndrivers/net/usb/aqc111.c-601-\t\t\treg8 \|= SFR_RXCOE_IP \| SFR_RXCOE_TCP \| SFR_RXCOE_UDP \|\n--\ndrivers/net/usb/aqc111.c-604-\ndrivers/net/usb/aqc111.c:605:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,\ndrivers/net/usb/aqc111.c-606-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-614-\t\t\t\treg8 = i;\ndrivers/net/usb/aqc111.c:615:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-616-\t\t\t\t\t\t SFR_VLAN_ID_ADDRESS,\n--\ndrivers/net/usb/aqc111.c-618-\t\t\t\t/ Data /\ndrivers/net/usb/aqc111.c:619:\t\t\t\taqc111_write16_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-620-\t\t\t\t\t\t SFR_VLAN_ID_DATA0,\n--\ndrivers/net/usb/aqc111.c-622-\t\t\t\treg8 = SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:623:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-624-\t\t\t\t\t\t SFR_VLAN_ID_CONTROL,\n--\ndrivers/net/usb/aqc111.c-626-\t\t\t}\ndrivers/net/usb/aqc111.c:627:\t\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-628-\t\t\t\t\t1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-629-\t\t\treg8 \|= SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:630:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-631-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-632-\t\t} else {\ndrivers/net/usb/aqc111.c:633:\t\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-634-\t\t\t\t\t1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-635-\t\t\treg8 \u0026= ~SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:636:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-637-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-643-\ndrivers/net/usb/aqc111.c:644:static const struct net_device_ops aqc111_netdev_ops = {\ndrivers/net/usb/aqc111.c-645-\t.ndo_open\t\t= usbnet_open,\n--\ndrivers/net/usb/aqc111.c-649-\t.ndo_get_stats64\t= dev_get_tstats64,\ndrivers/net/usb/aqc111.c:650:\t.ndo_change_mtu\t\t= aqc111_change_mtu,\ndrivers/net/usb/aqc111.c:651:\t.ndo_set_mac_address\t= aqc111_set_mac_addr,\ndrivers/net/usb/aqc111.c-652-\t.ndo_validate_addr\t= eth_validate_addr,\ndrivers/net/usb/aqc111.c:653:\t.ndo_vlan_rx_add_vid\t= aqc111_vlan_rx_add_vid,\ndrivers/net/usb/aqc111.c:654:\t.ndo_vlan_rx_kill_vid\t= aqc111_vlan_rx_kill_vid,\ndrivers/net/usb/aqc111.c:655:\t.ndo_set_rx_mode\t= aqc111_set_rx_mode,\ndrivers/net/usb/aqc111.c:656:\t.ndo_set_features\t= aqc111_set_features,\ndrivers/net/usb/aqc111.c-657-};\ndrivers/net/usb/aqc111.c-658-\ndrivers/net/usb/aqc111.c:659:static int aqc111_read_perm_mac(struct usbnet dev)\ndrivers/net/usb/aqc111.c-660-{\n--\ndrivers/net/usb/aqc111.c-663-\ndrivers/net/usb/aqc111.c:664:\tret = aqc111_read_cmd(dev, AQ_FLASH_PARAMETERS, 0, 0, ETH_ALEN, buf);\ndrivers/net/usb/aqc111.c-665-\tif (ret \u003c 0)\n--\ndrivers/net/usb/aqc111.c-674-\ndrivers/net/usb/aqc111.c:675:static void aqc111_read_fw_version(struct usbnet dev,\ndrivers/net/usb/aqc111.c:676:\t\t\t\t struct aqc111_data aqc111_data)\ndrivers/net/usb/aqc111.c-677-{\ndrivers/net/usb/aqc111.c:678:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MAJOR,\ndrivers/net/usb/aqc111.c:679:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.major);\ndrivers/net/usb/aqc111.c:680:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MINOR,\ndrivers/net/usb/aqc111.c:681:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.minor);\ndrivers/net/usb/aqc111.c:682:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_REV,\ndrivers/net/usb/aqc111.c:683:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.rev);\ndrivers/net/usb/aqc111.c-684-\ndrivers/net/usb/aqc111.c:685:\tif (aqc111_data-\u003efw_ver.major \u0026 0x80)\ndrivers/net/usb/aqc111.c:686:\t\taqc111_data-\u003efw_ver.major \u0026= ~0x80;\ndrivers/net/usb/aqc111.c-687-}\ndrivers/net/usb/aqc111.c-688-\ndrivers/net/usb/aqc111.c:689:static int aqc111_bind(struct usbnet dev, struct usb_interface intf)\ndrivers/net/usb/aqc111.c-690-{\n--\ndrivers/net/usb/aqc111.c-692-\tenum usb_device_speed usb_speed = udev-\u003espeed;\ndrivers/net/usb/aqc111.c:693:\tstruct aqc111_data aqc111_data;\ndrivers/net/usb/aqc111.c-694-\tint ret;\n--\ndrivers/net/usb/aqc111.c-709-\ndrivers/net/usb/aqc111.c:710:\taqc111_data = kzalloc_obj(aqc111_data);\ndrivers/net/usb/aqc111.c:711:\tif (!aqc111_data)\ndrivers/net/usb/aqc111.c-712-\t\treturn -ENOMEM;\ndrivers/net/usb/aqc111.c-713-\ndrivers/net/usb/aqc111.c:714:\t/* store aqc111_data pointer in device data field /\ndrivers/net/usb/aqc111.c:715:\tdev-\u003edriver_priv = aqc111_data;\ndrivers/net/usb/aqc111.c-716-\ndrivers/net/usb/aqc111.c-717-\t/ Init the MAC address /\ndrivers/net/usb/aqc111.c:718:\tret = aqc111_read_perm_mac(dev);\ndrivers/net/usb/aqc111.c-719-\tif (ret)\n--\ndrivers/net/usb/aqc111.c-732-\ndrivers/net/usb/aqc111.c:733:\tdev-\u003enet-\u003enetdev_ops = \u0026aqc111_netdev_ops;\ndrivers/net/usb/aqc111.c:734:\tdev-\u003enet-\u003eethtool_ops = \u0026aqc111_ethtool_ops;\ndrivers/net/usb/aqc111.c-735-\n--\ndrivers/net/usb/aqc111.c-744-\ndrivers/net/usb/aqc111.c:745:\taqc111_read_fw_version(dev, aqc111_data);\ndrivers/net/usb/aqc111.c:746:\taqc111_data-\u003eautoneg = AUTONEG_ENABLE;\ndrivers/net/usb/aqc111.c:747:\taqc111_data-\u003eadvertised_speed = (usb_speed == USB_SPEED_SUPER) ?\ndrivers/net/usb/aqc111.c-748-\t\t\t\t\t SPEED_5000 : SPEED_1000;\n--\ndrivers/net/usb/aqc111.c-752-out:\ndrivers/net/usb/aqc111.c:753:\tkfree(aqc111_data);\ndrivers/net/usb/aqc111.c-754-\treturn ret;\n--\ndrivers/net/usb/aqc111.c-756-\ndrivers/net/usb/aqc111.c:757:static void aqc111_unbind(struct usbnet dev, struct usb_interface intf)\ndrivers/net/usb/aqc111.c-758-{\ndrivers/net/usb/aqc111.c:759:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-760-\tu16 reg16;\n--\ndrivers/net/usb/aqc111.c-763-\treg16 = SFR_PHYPWR_RSTCTL_BZ;\ndrivers/net/usb/aqc111.c:764:\taqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,\ndrivers/net/usb/aqc111.c-765-\t\t\t\t2, \u0026reg16);\ndrivers/net/usb/aqc111.c-766-\treg16 = 0;\ndrivers/net/usb/aqc111.c:767:\taqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,\ndrivers/net/usb/aqc111.c-768-\t\t\t\t2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-770-\t/* Power down ethernet PHY /\ndrivers/net/usb/aqc111.c:771:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_ADV_MASK;\ndrivers/net/usb/aqc111.c:772:\taqc111_data-\u003ephy_cfg \|= AQ_LOW_POWER;\ndrivers/net/usb/aqc111.c:773:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_PHY_POWER_EN;\ndrivers/net/usb/aqc111.c:774:\taqc111_write32_cmd_nopm(dev, AQ_PHY_OPS, 0, 0,\ndrivers/net/usb/aqc111.c:775:\t\t\t\t\u0026aqc111_data-\u003ephy_cfg);\ndrivers/net/usb/aqc111.c-776-\ndrivers/net/usb/aqc111.c:777:\tkfree(aqc111_data);\ndrivers/net/usb/aqc111.c-778-}\ndrivers/net/usb/aqc111.c-779-\ndrivers/net/usb/aqc111.c:780:static void aqc111_status(struct usbnet dev, struct urb urb)\ndrivers/net/usb/aqc111.c-781-{\ndrivers/net/usb/aqc111.c:782:\tstruct aqc111_data aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-783-\tu64 event_data = NULL;\n--\ndrivers/net/usb/aqc111.c-796-\ndrivers/net/usb/aqc111.c:797:\taqc111_data-\u003elink_speed = (event_data \u0026 AQ_SPEED_MASK) \u003e\u003e\ndrivers/net/usb/aqc111.c-798-\t\t\t\t AQ_SPEED_SHIFT;\ndrivers/net/usb/aqc111.c:799:\taqc111_data-\u003elink = link;\ndrivers/net/usb/aqc111.c-800-\n--\ndrivers/net/usb/aqc111.c-804-\ndrivers/net/usb/aqc111.c:805:static void aqc111_configure_rx(struct usbnet dev,\ndrivers/net/usb/aqc111.c:806:\t\t\t\tstruct aqc111_data aqc111_data)\ndrivers/net/usb/aqc111.c-807-{\n--\ndrivers/net/usb/aqc111.c-817-\tbuf[2] = 0x07;\ndrivers/net/usb/aqc111.c:818:\tswitch (aqc111_data-\u003elink_speed) {\ndrivers/net/usb/aqc111.c-819-\tcase AQ_INT_SPEED_5G:\n\n" }
11/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25023 output: 37 thoughts: 43 Thoughts: Okay, here's my interpretation of that thought process, assuming I'm deep in the weeds with network driver configuration: Navigating the Kconfig Maze: AUSB_NET_AQC111 Analysis Right, so the system is telling me the relevant configuration option is `CONFIG_USB_NET_AQC111`. My brain immediately clicks over to the Kconfig files. This implies we're dealing with a USB network adapter, specifically one leveraging the AQC111 chipset. My next move is automatic – I need to dig into the `drivers/net/usb/Kconfig` file. That's the logical place where the configuration options for USB network drivers are defined. I have to verify the option's presence there, and maybe get a hint on what it controls. I'll need to confirm the symbol `USB_NET_AQC111` is actually defined, which would tell me if the driver for the AQC111 is intended to be built as a loadable module or built into the kernel. I will also be looking for any dependencies and dependencies on other kernel subsystems. I may also need to check the dependencies on other symbols to ensure all required components are enabled.
12/2	2026/07/03 08:57	tool	grepper	0m Args: { "Expression": "USB_NET_AQC111", "PathPrefix": "drivers/net/usb/Kconfig" } Results: { "Output": "drivers/net/usb/Kconfig=614=config USB_NET_CH9200\n--\ndrivers/net/usb/Kconfig-624-\ndrivers/net/usb/Kconfig:625:config USB_NET_AQC111\ndrivers/net/usb/Kconfig-626-\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n" }
13/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 25475 output: 38 thoughts: 231 Thoughts: Analyzing the AQC111 Ethernet Driver Configuration Okay, so I'm looking at the `USB_NET_AQC111` config – that's the starting point. My focus needs to be on the `aqc111_set_mac_addr` function; that's the one the patch seems to touch. Let's see... are there any other functions in the driver to consider? Right, there's `aqc111_bind`, `aqc111_reset`, and `aqc111_change_mtu`, but the patch is only about `aqc111_set_mac_addr`. Now, I need to verify that `aqc111_set_mac_addr` is actually accessible. Alright, it's assigned to `ndo_set_mac_address`, which is good. That links it up to `dev_set_mac_address`. Okay, and that can be reached through `dev_ioctl` (specifically the `SIOCSIFHWADDR` command) or even netlink (the `RTM_NEWLINK` message). Perfect. That means it's definitely reachable and can be tested, even with `dummy_hcd` to simulate the USB host side. Let's quickly ensure that there aren't any other configuration dependencies beyond the obvious one: `USB_NET_AQC111` depends on `USB_USBNET`. All seems to be in order from what I can see.
14/2	2026/07/03 08:57	tool	grepper	0m Args: { "Expression": "config USB_NET_AQC111", "PathPrefix": "drivers/net/usb/Kconfig" } Results: { "Output": "drivers/net/usb/Kconfig=614=config USB_NET_CH9200\n--\ndrivers/net/usb/Kconfig-624-\ndrivers/net/usb/Kconfig:625:config USB_NET_AQC111\ndrivers/net/usb/Kconfig-626-\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n" }
15/2	2026/07/03 08:57	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 26190 output: 36 thoughts: 20 Thoughts: Here's my take on the Kconfig entry for `USB_NET_AQC111`. Analyzing the USB_NET_AQC111 Kconfig Entry Okay, let's dive into this `USB_NET_AQC111` Kconfig entry. My immediate focus is on understanding its dependencies, default settings, and any relevant descriptions or help text. I want to quickly ascertain what conditions must be met for this driver to even be considered, and what the baseline configuration will look like if it's selected. I'll be looking for hints about the hardware requirements – is this tied to a specific USB controller, or chipset? Are there any module dependencies I need to be aware of? Are there conflicting options I need to look out for, or will there be any potential interactions with other networking stacks? I'm mentally mapping the placement of this entry within the broader Kconfig hierarchy. Is it under a general "USB Networking" section, or something more specific? The hierarchy location provides vital context. Once I have a high-level picture, I'll pay close attention to the `select` statements and how they might affect other configurations. And, of course, I'm checking for any `depends on` statements or `default` value assignments. Are these simple boolean values or more complex expressions? Ultimately, I want to be able to predict the behavior of the configuration system with this option.
16/2	2026/07/03 08:58	tool	read-file	0m Args: { "File": "drivers/net/usb/Kconfig", "FirstLine": 620, "LineCount": 20 } Results: { "Contents": " 620:\t\t CH9200 chipset.\n 621:\t\n 622:\t\t To compile this driver as a module, choose M here: the\n 623:\t\t module will be called ch9200.\n 624:\t\n 625:\tconfig USB_NET_AQC111\n 626:\t\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n 627:\t\tdepends on USB_USBNET\n 628:\t\tselect CRC32\n 629:\t\thelp\n 630:\t\t This option adds support for Aquantia AQtion USB\n 631:\t\t Ethernet adapters based on AQC111U/AQC112 chips.\n 632:\t\n 633:\t\t This driver should work with at least the following devices:\n 634:\t\t * Aquantia AQtion USB to 5GbE\n 635:\t\n 636:\tconfig USB_RTL8153_ECM\n 637:\t\ttristate\n 638:\t\tdepends on USB_NET_CDCETHER \u0026\u0026 (USB_RTL8152 \|\| USB_RTL8152=n)\n 639:\t\tdefault y\n" }
17/2	2026/07/03 08:58	llm	patch-evaluator	0m Model: gemini-3.1-pro-preview Args: null Results: null Tokens: input: 26880 output: 120 thoughts: 219 Thoughts: Analysis of a Potential Fuzzing Target Okay, so I've got this patch targeting the `aqc111_set_mac_addr` function, which, as I understand it, is responsible for setting the MAC address on a specific USB network adapter, the AQC111. The configuration is `USB_NET_AQC111`, meaning that driver is enabled by that configuration option. The core of the issue is this: the patch is changing the return value of `aqc111_set_mac_addr`. Currently, it returns the number of bytes transferred by `usb_control_msg` upon success, which isn't standard practice for `ndo_set_mac_address`. The patch changes this to the more expected return of 0 for success. My expert opinion is, and this is where I'm leaning towards fuzzing, that this is a functional change within a potentially reachable USB network driver. The fact that it's a functional change is crucial – changes in behavior are often more susceptible to causing unexpected problems, like memory corruption or other subtle bugs. The fact that the driver is reachable (meaning it's usable) is another huge plus. Therefore, I'm recommending this patch for fuzzing. Specifically, I'd focus fuzzing on the `aqc111_set_mac_addr` function itself. The key configuration item that needs to be enabled for this is `USB_NET_AQC111`.
18/2	2026/07/03 08:58	tool	set-results	0m Args: { "EnableConfigs": [ "USB_NET_AQC111" ], "FocusSymbols": [ "aqc111_set_mac_addr" ], "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.", "WorthFuzzing": true } Results: { "EnableConfigs": [ "USB_NET_AQC111" ], "FocusSymbols": [ "aqc111_set_mac_addr" ], "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.", "WorthFuzzing": true }

{
  "EnableConfigs": [
    "USB_NET_AQC111"
  ],
  "FocusSymbols": [
    "aqc111_set_mac_addr"
  ],
  "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.",
  "WorthFuzzing": true
}

{
  "PatchDiff": "commit 02bb36ec5479e762f651176505f1d8abb5da6ff9\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Fri Jul 3 08:57:20 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c\nindex dd53f413c38f60..da5b74637ee277 100644\n--- a/drivers/net/usb/aqc111.c\n+++ b/drivers/net/usb/aqc111.c\n@@ -471,8 +471,12 @@ static int aqc111_set_mac_addr(struct net_device *net, void *p)\n \t\treturn ret;\n \n \t/* Set the MAC address */\n-\treturn aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\n-\t\t\t\tETH_ALEN, net-\u003edev_addr);\n+\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\n+\t\t\t        ETH_ALEN, net-\u003edev_addr);\n+\tif (ret \u003c 0)\n+\t\treturn ret;\n+\n+\treturn 0;\n }\n \n static int aqc111_vlan_rx_kill_vid(struct net_device *net,\n"
}

gemini-3.1-pro-preview

{
  "EnableConfigs": [
    "USB_NET_AQC111"
  ],
  "FocusSymbols": [
    "aqc111_set_mac_addr"
  ],
  "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.",
  "WorthFuzzing": true
}

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.

For your convenience, here is the diff of the changes:
commit 02bb36ec5479e762f651176505f1d8abb5da6ff9
Author: syz-cluster <triage@syzkaller.com>
Date:   Fri Jul 3 08:57:20 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c
index dd53f413c38f60..da5b74637ee277 100644
--- a/drivers/net/usb/aqc111.c
+++ b/drivers/net/usb/aqc111.c
@@ -471,8 +471,12 @@ static int aqc111_set_mac_addr(struct net_device *net, void *p)
 		return ret;
 
 	/* Set the MAC address */
-	return aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,
-				ETH_ALEN, net->dev_addr);
+	ret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,
+			        ETH_ALEN, net->dev_addr);
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 
 static int aqc111_vlan_rx_kill_vid(struct net_device *net,

gemini-3.1-pro-preview

							input: 1932
							output: 42
							thoughts: 245

**Analyzing a Network Driver Patch**

Okay, so I'm looking at this patch for `drivers/net/usb/aqc111.c`. It's touching `aqc111_set_mac_addr`, which is always a critical area. The core of the change is straightforward: they've added an explicit error check after calling `aqc111_write_cmd`. Previously, the function just returned whatever `aqc111_write_cmd` returned, which could have been positive on success (which immediately strikes me as unusual). Now, if `aqc111_write_cmd` returns a value less than zero (indicating an error), the function propagates the negative return code. Otherwise, it now explicitly returns 0, signifying success.

Wait a second. The commit text doesn't mention the original behavior. Was `aqc111_write_cmd` really returning positive values on success? That's not the usual convention for these sorts of driver functions. I'll need to double check how `aqc111_write_cmd` is defined. I'll open up that function to verify the range of values it can return. It's possible I'm missing something, or there's a convention I'm not familiar with in this particular codebase, but my initial thought is that the original code was probably incorrect by not handling a possible error indicated by a negative return value. The patch is probably fixing a subtle bug where positive return values were interpreted as errors.

{
  "Expression": "aqc111_write_cmd",
  "PathPrefix": "drivers/net/usb/aqc111.c"
}

{
  "Output": "drivers/net/usb/aqc111.c=72=static int aqc111_read16_cmd(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-82-\ndrivers/net/usb/aqc111.c:83:static int __aqc111_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,\ndrivers/net/usb/aqc111.c-84-\t\t\t      u16 value, u16 index, u16 size, const void *data)\n--\ndrivers/net/usb/aqc111.c-113-\ndrivers/net/usb/aqc111.c:114:static int aqc111_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-115-\t\t\t\t u16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c-118-\ndrivers/net/usb/aqc111.c:119:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\ndrivers/net/usb/aqc111.c-120-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-124-\ndrivers/net/usb/aqc111.c:125:static int aqc111_write_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-126-\t\t\t    u16 index, u16 size, const void *data)\n--\ndrivers/net/usb/aqc111.c-132-\ndrivers/net/usb/aqc111.c:133:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\ndrivers/net/usb/aqc111.c-134-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c=141=static int aqc111_write16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-147-\ndrivers/net/usb/aqc111.c:148:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-149-}\n--\ndrivers/net/usb/aqc111.c=151=static int aqc111_write16_cmd(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-157-\ndrivers/net/usb/aqc111.c:158:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-159-}\n--\ndrivers/net/usb/aqc111.c=161=static int aqc111_write32_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-167-\ndrivers/net/usb/aqc111.c:168:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-169-}\n--\ndrivers/net/usb/aqc111.c=171=static int aqc111_write32_cmd(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-177-\ndrivers/net/usb/aqc111.c:178:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-179-}\ndrivers/net/usb/aqc111.c-180-\ndrivers/net/usb/aqc111.c:181:static int aqc111_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-182-\t\t\t\t  u16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c=189=static int aqc111_write16_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\n--\ndrivers/net/usb/aqc111.c-195-\ndrivers/net/usb/aqc111.c:196:\treturn aqc111_write_cmd_async(dev, cmd, value, index,\ndrivers/net/usb/aqc111.c-197-\t\t\t\t      sizeof(tmp), \u0026tmp);\n--\ndrivers/net/usb/aqc111.c=422=static int aqc111_change_mtu(struct net_device *net, int new_mtu)\n--\ndrivers/net/usb/aqc111.c-443-\t\t/* RX bulk configuration */\ndrivers/net/usb/aqc111.c:444:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-445-\t\t\t\t 5, 5, buf);\n--\ndrivers/net/usb/aqc111.c=464=static int aqc111_set_mac_addr(struct net_device *net, void *p)\n--\ndrivers/net/usb/aqc111.c-473-\t/* Set the MAC address */\ndrivers/net/usb/aqc111.c:474:\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-475-\t\t\t        ETH_ALEN, net-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c=482=static int aqc111_vlan_rx_kill_vid(struct net_device *net,\n--\ndrivers/net/usb/aqc111.c-494-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:495:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-496-\t/* Data */\ndrivers/net/usb/aqc111.c-497-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:498:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-499-\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-502-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:503:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-504-\n--\ndrivers/net/usb/aqc111.c=508=static int aqc111_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)\n--\ndrivers/net/usb/aqc111.c-519-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:520:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-521-\t/* Data */\ndrivers/net/usb/aqc111.c-522-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:523:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-524-\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-527-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:528:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-529-\n--\ndrivers/net/usb/aqc111.c=533=static void aqc111_set_rx_mode(struct net_device *net)\n--\ndrivers/net/usb/aqc111.c-557-\ndrivers/net/usb/aqc111.c:558:\t\taqc111_write_cmd_async(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-559-\t\t\t\t       SFR_MULTI_FILTER_ARRY,\n--\ndrivers/net/usb/aqc111.c=570=static int aqc111_set_features(struct net_device *net,\n--\ndrivers/net/usb/aqc111.c-581-\t\treg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP;\ndrivers/net/usb/aqc111.c:582:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-583-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-588-\t\treg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6;\ndrivers/net/usb/aqc111.c:589:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-590-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-604-\ndrivers/net/usb/aqc111.c:605:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,\ndrivers/net/usb/aqc111.c-606-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-614-\t\t\t\treg8 = i;\ndrivers/net/usb/aqc111.c:615:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-616-\t\t\t\t\t\t SFR_VLAN_ID_ADDRESS,\n--\ndrivers/net/usb/aqc111.c-622-\t\t\t\treg8 = SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:623:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-624-\t\t\t\t\t\t SFR_VLAN_ID_CONTROL,\n--\ndrivers/net/usb/aqc111.c-629-\t\t\treg8 |= SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:630:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-631-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-635-\t\t\treg8 \u0026= ~SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:636:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-637-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c=805=static void aqc111_configure_rx(struct usbnet *dev,\n--\ndrivers/net/usb/aqc111.c-840-\ndrivers/net/usb/aqc111.c:841:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_INTER_PACKET_GAP_0,\ndrivers/net/usb/aqc111.c-842-\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-843-\ndrivers/net/usb/aqc111.c:844:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TX_PAUSE_RESEND_T, 3, 3, buf);\ndrivers/net/usb/aqc111.c-845-\n--\ndrivers/net/usb/aqc111.c-867-\t/* RX bulk configuration */\ndrivers/net/usb/aqc111.c:868:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL, 5, 5, buf);\ndrivers/net/usb/aqc111.c-869-\n--\ndrivers/net/usb/aqc111.c=885=static void aqc111_configure_csum_offload(struct usbnet *dev)\n--\ndrivers/net/usb/aqc111.c-892-\t}\ndrivers/net/usb/aqc111.c:893:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-894-\n--\ndrivers/net/usb/aqc111.c-901-\ndrivers/net/usb/aqc111.c:902:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-903-}\n--\ndrivers/net/usb/aqc111.c=905=static int aqc111_link_reset(struct usbnet *dev)\n--\ndrivers/net/usb/aqc111.c-918-\ndrivers/net/usb/aqc111.c:919:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-920-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-922-\t\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:923:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-924-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-925-\ndrivers/net/usb/aqc111.c:926:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMTX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-927-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-928-\ndrivers/net/usb/aqc111.c:929:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ARC_CTRL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-930-\n--\ndrivers/net/usb/aqc111.c-935-\t\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:936:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-937-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-939-\t\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:940:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-941-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-982-\t\treg8 = SFR_BULK_OUT_FLUSH_EN | SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:983:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-984-\t\t\t\t 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-985-\t\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:986:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-987-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c=994=static int aqc111_reset(struct usbnet *dev)\n--\ndrivers/net/usb/aqc111.c-1013-\t/* Set the MAC address */\ndrivers/net/usb/aqc111.c:1014:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-1015-\t\t\t ETH_ALEN, dev-\u003enet-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c-1017-\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1018:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1019-\ndrivers/net/usb/aqc111.c-1020-\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:1021:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_SWP_CTRL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1022-\n--\ndrivers/net/usb/aqc111.c-1026-\t\t  SFR_MONITOR_MODE_RW_FLAG);\ndrivers/net/usb/aqc111.c:1027:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_MONITOR_MODE, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1028-\n--\ndrivers/net/usb/aqc111.c=1326=static int aqc111_suspend(struct usb_interface *intf, pm_message_t message)\n--\ndrivers/net/usb/aqc111.c-1348-\treg8 = SFR_BULK_OUT_EFF_EN;\ndrivers/net/usb/aqc111.c:1349:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BULK_OUT_CTRL,\ndrivers/net/usb/aqc111.c-1350-\t\t\t      1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1357-\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1358:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1359-\t\t\t      1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1373-\t\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1374:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,\ndrivers/net/usb/aqc111.c-1375-\t\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1376-\t\treg8 = SFR_BMRX_DMA_EN;\ndrivers/net/usb/aqc111.c:1377:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL,\ndrivers/net/usb/aqc111.c-1378-\t\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1379-\t\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:1380:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1381-\t\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1382-\t\treg8 = 0x07;\ndrivers/net/usb/aqc111.c:1383:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-1384-\t\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1385-\t\treg8 = 0x00;\ndrivers/net/usb/aqc111.c:1386:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-1387-\t\t\t\t      SFR_RX_BULKIN_QTIMR_LOW, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:1388:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-1389-\t\t\t\t      SFR_RX_BULKIN_QTIMR_HIGH, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1390-\t\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1391:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QSIZE,\ndrivers/net/usb/aqc111.c-1392-\t\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:1393:\t\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QIFG,\ndrivers/net/usb/aqc111.c-1394-\t\t\t\t      1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1401-\ndrivers/net/usb/aqc111.c:1402:\t\taqc111_write_cmd_nopm(dev, AQ_WOL_CFG, 0, 0,\ndrivers/net/usb/aqc111.c-1403-\t\t\t\t      WOL_CFG_SIZE, \u0026wol_cfg);\n--\ndrivers/net/usb/aqc111.c=1422=static int aqc111_resume(struct usb_interface *intf)\n--\ndrivers/net/usb/aqc111.c-1436-\treg8 = 0xFF;\ndrivers/net/usb/aqc111.c:1437:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_BM_INT_MASK,\ndrivers/net/usb/aqc111.c-1438-\t\t\t      1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-1455-\treg8 = SFR_RX_PATH_READY;\ndrivers/net/usb/aqc111.c:1456:\taqc111_write_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_ETH_MAC_PATH,\ndrivers/net/usb/aqc111.c-1457-\t\t\t      1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1458-\treg8 = 0x0;\ndrivers/net/usb/aqc111.c:1459:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_BMRX_DMA_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-1460-\n"
}

gemini-3.1-pro-preview

							input: 9574
							output: 44
							thoughts: 256

**Analyzing the MAC Address Set Function**

Okay, so the patch is focused on `aqc111_set_mac_addr`. Let me walk through this. `aqc111_write_cmd` is the key. It calls `__aqc111_write_cmd`, which ultimately calls `usb_control_msg`. Right, and `usb_control_msg` gives back either the number of bytes transferred or a negative error code. This means `aqc111_write_cmd` *could* be returning a positive integer representing the byte count on success. Before the patch, `aqc111_set_mac_addr` was passing that positive return value directly back up the stack.

The change they've made is now returning 0 if the original `ret` from `aqc111_write_cmd` was positive (or zero, which is likely success). And it returns `ret` itself if it's negative (the error code). This looks like a functional change for sure. My immediate concern is that `ndo_set_mac_address`, which `aqc111_set_mac_addr` is *probably* assigned to, expects a 0 on success. Returning a positive byte count from a successful MAC address set would definitely trip up the caller, potentially leading to incorrect behavior down the line, maybe even in something like `dev_set_mac_address`.

I should probably confirm by looking directly at `aqc111_set_mac_addr` within `drivers/net/usb/aqc111.c` to be completely sure.

{
  "Expression": "aqc111_set_mac_addr",
  "PathPrefix": "drivers/net/usb/aqc111.c"
}

{
  "Output": "drivers/net/usb/aqc111.c=422=static int aqc111_change_mtu(struct net_device *net, int new_mtu)\n--\ndrivers/net/usb/aqc111.c-463-\ndrivers/net/usb/aqc111.c:464:static int aqc111_set_mac_addr(struct net_device *net, void *p)\ndrivers/net/usb/aqc111.c-465-{\n--\ndrivers/net/usb/aqc111.c=644=static const struct net_device_ops aqc111_netdev_ops = {\n--\ndrivers/net/usb/aqc111.c-650-\t.ndo_change_mtu\t\t= aqc111_change_mtu,\ndrivers/net/usb/aqc111.c:651:\t.ndo_set_mac_address\t= aqc111_set_mac_addr,\ndrivers/net/usb/aqc111.c-652-\t.ndo_validate_addr\t= eth_validate_addr,\n"
}

gemini-3.1-pro-preview

							input: 10524
							output: 33
							thoughts: 77

**Analyzing the `ndo_set_mac_address` Assignment**

Okay, so I see this task is focused on `.ndo_set_mac_address`. Right, a pretty standard network driver function. This looks like a functional change, not just a bug fix, meaning it's worth a closer look for interesting behavior. The crucial question is, can we actually reach this function? Hmm, it's connected to a USB network driver. That's good news; USB is often accessible through emulation, specifically something like a `dummy_hcd` setup. We can fuzz it! Now, what configs do we need to trigger the target? Let me check the Kconfig for the `aqc111` driver, that should give us some clues about dependencies and build options.

{
  "Expression": "aqc111",
  "PathPrefix": "drivers/net/usb/Kconfig"
}

{
  "error": "no matches"
}

gemini-3.1-pro-preview

							input: 10812
							output: 31
							thoughts: 34

Okay, here's my understanding, formatted as requested:

**Investigating the AQC111 Driver Build Configuration**

Right, so I need to figure out how the `aqc111.o` driver is handled in the build process. My first instinct, given my experience, is to jump straight into the likely configuration files within the kernel source. I'm thinking, most likely, the Makefile will define the build rules and dependencies, and the Kconfig file will control the enabling or disabling of the driver through a configuration option. Therefore, I will begin by examining the `drivers/net/usb/Makefile` and `drivers/net/usb/Kconfig` files. That should give me a good handle on how the AQC111 driver is integrated into the build system.

{
  "Expression": "aqc111",
  "PathPrefix": "drivers/net/usb/"
}

{
  "Output": "\nFull output is too long, showing 500 out of 895 lines.\nUse more precise expression if possible.\n\ndrivers/net/usb/Makefile=42=obj-$(CONFIG_USB_NET_CH9200)\t+= ch9200.o\ndrivers/net/usb/Makefile:43:obj-$(CONFIG_USB_NET_AQC111)\t+= aqc111.o\ndrivers/net/usb/Makefile-44-obj-$(CONFIG_USB_RTL8153_ECM)\t+= r8153_ecm.o\n--\ndrivers/net/usb/aqc111.c-20-\ndrivers/net/usb/aqc111.c:21:#include \"aqc111.h\"\ndrivers/net/usb/aqc111.c-22-\ndrivers/net/usb/aqc111.c:23:static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-24-\t\t\t\tu16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c-41-\ndrivers/net/usb/aqc111.c:42:static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-43-\t\t\t   u16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c-60-\ndrivers/net/usb/aqc111.c:61:static int aqc111_read16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-62-\t\t\t\t  u16 index, u16 *data)\n--\ndrivers/net/usb/aqc111.c-65-\ndrivers/net/usb/aqc111.c:66:\tret = aqc111_read_cmd_nopm(dev, cmd, value, index, sizeof(*data), data);\ndrivers/net/usb/aqc111.c-67-\tle16_to_cpus(data);\n--\ndrivers/net/usb/aqc111.c-71-\ndrivers/net/usb/aqc111.c:72:static int aqc111_read16_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-73-\t\t\t     u16 index, u16 *data)\n--\ndrivers/net/usb/aqc111.c-76-\ndrivers/net/usb/aqc111.c:77:\tret = aqc111_read_cmd(dev, cmd, value, index, sizeof(*data), data);\ndrivers/net/usb/aqc111.c-78-\tle16_to_cpus(data);\n--\ndrivers/net/usb/aqc111.c-82-\ndrivers/net/usb/aqc111.c:83:static int __aqc111_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,\ndrivers/net/usb/aqc111.c-84-\t\t\t      u16 value, u16 index, u16 size, const void *data)\n--\ndrivers/net/usb/aqc111.c-113-\ndrivers/net/usb/aqc111.c:114:static int aqc111_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-115-\t\t\t\t u16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c-118-\ndrivers/net/usb/aqc111.c:119:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\ndrivers/net/usb/aqc111.c-120-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-124-\ndrivers/net/usb/aqc111.c:125:static int aqc111_write_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-126-\t\t\t    u16 index, u16 size, const void *data)\n--\ndrivers/net/usb/aqc111.c-132-\ndrivers/net/usb/aqc111.c:133:\tret = __aqc111_write_cmd(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |\ndrivers/net/usb/aqc111.c-134-\t\t\t\t USB_RECIP_DEVICE, value, index, size, data);\n--\ndrivers/net/usb/aqc111.c-140-\ndrivers/net/usb/aqc111.c:141:static int aqc111_write16_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-142-\t\t\t\t   u16 index, u16 *data)\n--\ndrivers/net/usb/aqc111.c-147-\ndrivers/net/usb/aqc111.c:148:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-149-}\ndrivers/net/usb/aqc111.c-150-\ndrivers/net/usb/aqc111.c:151:static int aqc111_write16_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-152-\t\t\t      u16 index, u16 *data)\n--\ndrivers/net/usb/aqc111.c-157-\ndrivers/net/usb/aqc111.c:158:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-159-}\ndrivers/net/usb/aqc111.c-160-\ndrivers/net/usb/aqc111.c:161:static int aqc111_write32_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-162-\t\t\t\t   u16 index, u32 *data)\n--\ndrivers/net/usb/aqc111.c-167-\ndrivers/net/usb/aqc111.c:168:\treturn aqc111_write_cmd_nopm(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-169-}\ndrivers/net/usb/aqc111.c-170-\ndrivers/net/usb/aqc111.c:171:static int aqc111_write32_cmd(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-172-\t\t\t      u16 index, u32 *data)\n--\ndrivers/net/usb/aqc111.c-177-\ndrivers/net/usb/aqc111.c:178:\treturn aqc111_write_cmd(dev, cmd, value, index, sizeof(tmp), \u0026tmp);\ndrivers/net/usb/aqc111.c-179-}\ndrivers/net/usb/aqc111.c-180-\ndrivers/net/usb/aqc111.c:181:static int aqc111_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-182-\t\t\t\t  u16 index, u16 size, void *data)\n--\ndrivers/net/usb/aqc111.c-188-\ndrivers/net/usb/aqc111.c:189:static int aqc111_write16_cmd_async(struct usbnet *dev, u8 cmd, u16 value,\ndrivers/net/usb/aqc111.c-190-\t\t\t\t    u16 index, u16 *data)\n--\ndrivers/net/usb/aqc111.c-195-\ndrivers/net/usb/aqc111.c:196:\treturn aqc111_write_cmd_async(dev, cmd, value, index,\ndrivers/net/usb/aqc111.c-197-\t\t\t\t      sizeof(tmp), \u0026tmp);\n--\ndrivers/net/usb/aqc111.c-199-\ndrivers/net/usb/aqc111.c:200:static void aqc111_get_drvinfo(struct net_device *net,\ndrivers/net/usb/aqc111.c-201-\t\t\t       struct ethtool_drvinfo *info)\n--\ndrivers/net/usb/aqc111.c-203-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:204:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-205-\n--\ndrivers/net/usb/aqc111.c-208-\tsnprintf(info-\u003efw_version, sizeof(info-\u003efw_version), \"%u.%u.%u\",\ndrivers/net/usb/aqc111.c:209:\t\t aqc111_data-\u003efw_ver.major,\ndrivers/net/usb/aqc111.c:210:\t\t aqc111_data-\u003efw_ver.minor,\ndrivers/net/usb/aqc111.c:211:\t\t aqc111_data-\u003efw_ver.rev);\ndrivers/net/usb/aqc111.c-212-}\ndrivers/net/usb/aqc111.c-213-\ndrivers/net/usb/aqc111.c:214:static void aqc111_get_wol(struct net_device *net,\ndrivers/net/usb/aqc111.c-215-\t\t\t   struct ethtool_wolinfo *wolinfo)\n--\ndrivers/net/usb/aqc111.c-217-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:218:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-219-\n--\ndrivers/net/usb/aqc111.c-222-\ndrivers/net/usb/aqc111.c:223:\tif (aqc111_data-\u003ewol_flags \u0026 AQ_WOL_FLAG_MP)\ndrivers/net/usb/aqc111.c-224-\t\twolinfo-\u003ewolopts |= WAKE_MAGIC;\n--\ndrivers/net/usb/aqc111.c-226-\ndrivers/net/usb/aqc111.c:227:static int aqc111_set_wol(struct net_device *net,\ndrivers/net/usb/aqc111.c-228-\t\t\t  struct ethtool_wolinfo *wolinfo)\n--\ndrivers/net/usb/aqc111.c-230-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:231:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-232-\n--\ndrivers/net/usb/aqc111.c-235-\ndrivers/net/usb/aqc111.c:236:\taqc111_data-\u003ewol_flags = 0;\ndrivers/net/usb/aqc111.c-237-\tif (wolinfo-\u003ewolopts \u0026 WAKE_MAGIC)\ndrivers/net/usb/aqc111.c:238:\t\taqc111_data-\u003ewol_flags |= AQ_WOL_FLAG_MP;\ndrivers/net/usb/aqc111.c-239-\n--\ndrivers/net/usb/aqc111.c-242-\ndrivers/net/usb/aqc111.c:243:static void aqc111_speed_to_link_mode(u32 speed,\ndrivers/net/usb/aqc111.c-244-\t\t\t\t      struct ethtool_link_ksettings *elk)\n--\ndrivers/net/usb/aqc111.c-265-\ndrivers/net/usb/aqc111.c:266:static int aqc111_get_link_ksettings(struct net_device *net,\ndrivers/net/usb/aqc111.c-267-\t\t\t\t     struct ethtool_link_ksettings *elk)\n--\ndrivers/net/usb/aqc111.c-269-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:270:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-271-\tenum usb_device_speed usb_speed = dev-\u003eudev-\u003espeed;\n--\ndrivers/net/usb/aqc111.c-292-\ndrivers/net/usb/aqc111.c:293:\tif (aqc111_data-\u003eautoneg)\ndrivers/net/usb/aqc111.c-294-\t\tlinkmode_copy(elk-\u003elink_modes.advertising,\n--\ndrivers/net/usb/aqc111.c-296-\telse\ndrivers/net/usb/aqc111.c:297:\t\taqc111_speed_to_link_mode(aqc111_data-\u003eadvertised_speed, elk);\ndrivers/net/usb/aqc111.c-298-\ndrivers/net/usb/aqc111.c:299:\telk-\u003ebase.autoneg = aqc111_data-\u003eautoneg;\ndrivers/net/usb/aqc111.c-300-\ndrivers/net/usb/aqc111.c:301:\tswitch (aqc111_data-\u003elink_speed) {\ndrivers/net/usb/aqc111.c-302-\tcase AQ_INT_SPEED_5G:\n--\ndrivers/net/usb/aqc111.c-320-\ndrivers/net/usb/aqc111.c:321:static void aqc111_set_phy_speed(struct usbnet *dev, u8 autoneg, u16 speed)\ndrivers/net/usb/aqc111.c-322-{\ndrivers/net/usb/aqc111.c:323:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-324-\ndrivers/net/usb/aqc111.c:325:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_ADV_MASK;\ndrivers/net/usb/aqc111.c:326:\taqc111_data-\u003ephy_cfg |= AQ_PAUSE;\ndrivers/net/usb/aqc111.c:327:\taqc111_data-\u003ephy_cfg |= AQ_ASYM_PAUSE;\ndrivers/net/usb/aqc111.c:328:\taqc111_data-\u003ephy_cfg |= AQ_DOWNSHIFT;\ndrivers/net/usb/aqc111.c:329:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_DSH_RETRIES_MASK;\ndrivers/net/usb/aqc111.c:330:\taqc111_data-\u003ephy_cfg |= (3 \u003c\u003c AQ_DSH_RETRIES_SHIFT) \u0026\ndrivers/net/usb/aqc111.c-331-\t\t\t\tAQ_DSH_RETRIES_MASK;\n--\ndrivers/net/usb/aqc111.c-335-\t\tcase SPEED_5000:\ndrivers/net/usb/aqc111.c:336:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_5G;\ndrivers/net/usb/aqc111.c-337-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-338-\t\tcase SPEED_2500:\ndrivers/net/usb/aqc111.c:339:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_2G5;\ndrivers/net/usb/aqc111.c-340-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-341-\t\tcase SPEED_1000:\ndrivers/net/usb/aqc111.c:342:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_1G;\ndrivers/net/usb/aqc111.c-343-\t\t\tfallthrough;\ndrivers/net/usb/aqc111.c-344-\t\tcase SPEED_100:\ndrivers/net/usb/aqc111.c:345:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_100M;\ndrivers/net/usb/aqc111.c-346-\t\t\t/* fall-through */\n--\ndrivers/net/usb/aqc111.c-350-\t\tcase SPEED_5000:\ndrivers/net/usb/aqc111.c:351:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_5G;\ndrivers/net/usb/aqc111.c-352-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-353-\t\tcase SPEED_2500:\ndrivers/net/usb/aqc111.c:354:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_2G5;\ndrivers/net/usb/aqc111.c-355-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-356-\t\tcase SPEED_1000:\ndrivers/net/usb/aqc111.c:357:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_1G;\ndrivers/net/usb/aqc111.c-358-\t\t\tbreak;\ndrivers/net/usb/aqc111.c-359-\t\tcase SPEED_100:\ndrivers/net/usb/aqc111.c:360:\t\t\taqc111_data-\u003ephy_cfg |= AQ_ADV_100M;\ndrivers/net/usb/aqc111.c-361-\t\t\tbreak;\n--\ndrivers/net/usb/aqc111.c-364-\ndrivers/net/usb/aqc111.c:365:\taqc111_write32_cmd(dev, AQ_PHY_OPS, 0, 0, \u0026aqc111_data-\u003ephy_cfg);\ndrivers/net/usb/aqc111.c-366-}\ndrivers/net/usb/aqc111.c-367-\ndrivers/net/usb/aqc111.c:368:static int aqc111_set_link_ksettings(struct net_device *net,\ndrivers/net/usb/aqc111.c-369-\t\t\t\t     const struct ethtool_link_ksettings *elk)\n--\ndrivers/net/usb/aqc111.c-371-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:372:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-373-\tenum usb_device_speed usb_speed = dev-\u003eudev-\u003espeed;\n--\ndrivers/net/usb/aqc111.c-377-\tif (autoneg == AUTONEG_ENABLE) {\ndrivers/net/usb/aqc111.c:378:\t\tif (aqc111_data-\u003eautoneg != AUTONEG_ENABLE) {\ndrivers/net/usb/aqc111.c:379:\t\t\taqc111_data-\u003eautoneg = AUTONEG_ENABLE;\ndrivers/net/usb/aqc111.c:380:\t\t\taqc111_data-\u003eadvertised_speed =\ndrivers/net/usb/aqc111.c-381-\t\t\t\t\t(usb_speed == USB_SPEED_SUPER) ?\ndrivers/net/usb/aqc111.c-382-\t\t\t\t\t SPEED_5000 : SPEED_1000;\ndrivers/net/usb/aqc111.c:383:\t\t\taqc111_set_phy_speed(dev, aqc111_data-\u003eautoneg,\ndrivers/net/usb/aqc111.c:384:\t\t\t\t\t     aqc111_data-\u003eadvertised_speed);\ndrivers/net/usb/aqc111.c-385-\t\t}\n--\ndrivers/net/usb/aqc111.c-399-\ndrivers/net/usb/aqc111.c:400:\t\taqc111_data-\u003eautoneg = AUTONEG_DISABLE;\ndrivers/net/usb/aqc111.c-401-\t\tif (speed != SPEED_UNKNOWN)\ndrivers/net/usb/aqc111.c:402:\t\t\taqc111_data-\u003eadvertised_speed = speed;\ndrivers/net/usb/aqc111.c-403-\ndrivers/net/usb/aqc111.c:404:\t\taqc111_set_phy_speed(dev, aqc111_data-\u003eautoneg,\ndrivers/net/usb/aqc111.c:405:\t\t\t\t     aqc111_data-\u003eadvertised_speed);\ndrivers/net/usb/aqc111.c-406-\t}\n--\ndrivers/net/usb/aqc111.c-410-\ndrivers/net/usb/aqc111.c:411:static const struct ethtool_ops aqc111_ethtool_ops = {\ndrivers/net/usb/aqc111.c:412:\t.get_drvinfo = aqc111_get_drvinfo,\ndrivers/net/usb/aqc111.c:413:\t.get_wol = aqc111_get_wol,\ndrivers/net/usb/aqc111.c:414:\t.set_wol = aqc111_set_wol,\ndrivers/net/usb/aqc111.c-415-\t.get_msglevel = usbnet_get_msglevel,\n--\ndrivers/net/usb/aqc111.c-417-\t.get_link = ethtool_op_get_link,\ndrivers/net/usb/aqc111.c:418:\t.get_link_ksettings = aqc111_get_link_ksettings,\ndrivers/net/usb/aqc111.c:419:\t.set_link_ksettings = aqc111_set_link_ksettings\ndrivers/net/usb/aqc111.c-420-};\ndrivers/net/usb/aqc111.c-421-\ndrivers/net/usb/aqc111.c:422:static int aqc111_change_mtu(struct net_device *net, int new_mtu)\ndrivers/net/usb/aqc111.c-423-{\n--\ndrivers/net/usb/aqc111.c-430-\ndrivers/net/usb/aqc111.c:431:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,\ndrivers/net/usb/aqc111.c-432-\t\t\t  2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-437-\ndrivers/net/usb/aqc111.c:438:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_MEDIUM_STATUS_MODE,\ndrivers/net/usb/aqc111.c-439-\t\t\t   2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-443-\t\t/* RX bulk configuration */\ndrivers/net/usb/aqc111.c:444:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RX_BULKIN_QCTRL,\ndrivers/net/usb/aqc111.c-445-\t\t\t\t 5, 5, buf);\n--\ndrivers/net/usb/aqc111.c-457-\ndrivers/net/usb/aqc111.c:458:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_PAUSE_WATERLVL_LOW,\ndrivers/net/usb/aqc111.c-459-\t\t\t   2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-463-\ndrivers/net/usb/aqc111.c:464:static int aqc111_set_mac_addr(struct net_device *net, void *p)\ndrivers/net/usb/aqc111.c-465-{\n--\ndrivers/net/usb/aqc111.c-473-\t/* Set the MAC address */\ndrivers/net/usb/aqc111.c:474:\tret = aqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_NODE_ID, ETH_ALEN,\ndrivers/net/usb/aqc111.c-475-\t\t\t        ETH_ALEN, net-\u003edev_addr);\n--\ndrivers/net/usb/aqc111.c-481-\ndrivers/net/usb/aqc111.c:482:static int aqc111_vlan_rx_kill_vid(struct net_device *net,\ndrivers/net/usb/aqc111.c-483-\t\t\t\t   __be16 proto, u16 vid)\n--\ndrivers/net/usb/aqc111.c-489-\ndrivers/net/usb/aqc111.c:490:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-491-\tvlan_ctrl = reg8;\n--\ndrivers/net/usb/aqc111.c-494-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:495:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-496-\t/* Data */\ndrivers/net/usb/aqc111.c-497-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:498:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:499:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-500-\treg16 \u0026= ~(1 \u003c\u003c (vid % 16));\ndrivers/net/usb/aqc111.c:501:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-502-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:503:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-504-\n--\ndrivers/net/usb/aqc111.c-507-\ndrivers/net/usb/aqc111.c:508:static int aqc111_vlan_rx_add_vid(struct net_device *net, __be16 proto, u16 vid)\ndrivers/net/usb/aqc111.c-509-{\n--\ndrivers/net/usb/aqc111.c-514-\ndrivers/net/usb/aqc111.c:515:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-516-\tvlan_ctrl = reg8;\n--\ndrivers/net/usb/aqc111.c-519-\treg8 = (vid / 16);\ndrivers/net/usb/aqc111.c:520:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_ADDRESS, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-521-\t/* Data */\ndrivers/net/usb/aqc111.c-522-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_RD;\ndrivers/net/usb/aqc111.c:523:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c:524:\taqc111_read16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-525-\treg16 |= (1 \u003c\u003c (vid % 16));\ndrivers/net/usb/aqc111.c:526:\taqc111_write16_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_DATA0, 2, \u0026reg16);\ndrivers/net/usb/aqc111.c-527-\treg8 = vlan_ctrl | SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:528:\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-529-\n--\ndrivers/net/usb/aqc111.c-532-\ndrivers/net/usb/aqc111.c:533:static void aqc111_set_rx_mode(struct net_device *net)\ndrivers/net/usb/aqc111.c-534-{\ndrivers/net/usb/aqc111.c-535-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:536:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-537-\tint mc_count = 0;\n--\ndrivers/net/usb/aqc111.c-540-\ndrivers/net/usb/aqc111.c:541:\taqc111_data-\u003erxctl \u0026= ~(SFR_RX_CTL_PRO | SFR_RX_CTL_AMALL |\ndrivers/net/usb/aqc111.c-542-\t\t\t\tSFR_RX_CTL_AM);\n--\ndrivers/net/usb/aqc111.c-544-\tif (net-\u003eflags \u0026 IFF_PROMISC) {\ndrivers/net/usb/aqc111.c:545:\t\taqc111_data-\u003erxctl |= SFR_RX_CTL_PRO;\ndrivers/net/usb/aqc111.c-546-\t} else if ((net-\u003eflags \u0026 IFF_ALLMULTI) || mc_count \u003e AQ_MAX_MCAST) {\ndrivers/net/usb/aqc111.c:547:\t\taqc111_data-\u003erxctl |= SFR_RX_CTL_AMALL;\ndrivers/net/usb/aqc111.c-548-\t} else if (!netdev_mc_empty(net)) {\n--\ndrivers/net/usb/aqc111.c-557-\ndrivers/net/usb/aqc111.c:558:\t\taqc111_write_cmd_async(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-559-\t\t\t\t       SFR_MULTI_FILTER_ARRY,\n--\ndrivers/net/usb/aqc111.c-562-\ndrivers/net/usb/aqc111.c:563:\t\taqc111_data-\u003erxctl |= SFR_RX_CTL_AM;\ndrivers/net/usb/aqc111.c-564-\t}\ndrivers/net/usb/aqc111.c-565-\ndrivers/net/usb/aqc111.c:566:\taqc111_write16_cmd_async(dev, AQ_ACCESS_MAC, SFR_RX_CTL,\ndrivers/net/usb/aqc111.c:567:\t\t\t\t 2, \u0026aqc111_data-\u003erxctl);\ndrivers/net/usb/aqc111.c-568-}\ndrivers/net/usb/aqc111.c-569-\ndrivers/net/usb/aqc111.c:570:static int aqc111_set_features(struct net_device *net,\ndrivers/net/usb/aqc111.c-571-\t\t\t       netdev_features_t features)\n--\ndrivers/net/usb/aqc111.c-573-\tstruct usbnet *dev = netdev_priv(net);\ndrivers/net/usb/aqc111.c:574:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-575-\tnetdev_features_t changed = net-\u003efeatures ^ features;\n--\ndrivers/net/usb/aqc111.c-579-\tif (changed \u0026 NETIF_F_IP_CSUM) {\ndrivers/net/usb/aqc111.c:580:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-581-\t\treg8 ^= SFR_TXCOE_TCP | SFR_TXCOE_UDP;\ndrivers/net/usb/aqc111.c:582:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-583-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-586-\tif (changed \u0026 NETIF_F_IPV6_CSUM) {\ndrivers/net/usb/aqc111.c:587:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-588-\t\treg8 ^= SFR_TXCOE_TCPV6 | SFR_TXCOE_UDPV6;\ndrivers/net/usb/aqc111.c:589:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_TXCOE_CTL,\ndrivers/net/usb/aqc111.c-590-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-593-\tif (changed \u0026 NETIF_F_RXCSUM) {\ndrivers/net/usb/aqc111.c:594:\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-595-\t\tif (features \u0026 NETIF_F_RXCSUM) {\ndrivers/net/usb/aqc111.c:596:\t\t\taqc111_data-\u003erx_checksum = 1;\ndrivers/net/usb/aqc111.c-597-\t\t\treg8 \u0026= ~(SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |\n--\ndrivers/net/usb/aqc111.c-599-\t\t} else {\ndrivers/net/usb/aqc111.c:600:\t\t\taqc111_data-\u003erx_checksum = 0;\ndrivers/net/usb/aqc111.c-601-\t\t\treg8 |= SFR_RXCOE_IP | SFR_RXCOE_TCP | SFR_RXCOE_UDP |\n--\ndrivers/net/usb/aqc111.c-604-\ndrivers/net/usb/aqc111.c:605:\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC, SFR_RXCOE_CTL,\ndrivers/net/usb/aqc111.c-606-\t\t\t\t 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-614-\t\t\t\treg8 = i;\ndrivers/net/usb/aqc111.c:615:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-616-\t\t\t\t\t\t SFR_VLAN_ID_ADDRESS,\n--\ndrivers/net/usb/aqc111.c-618-\t\t\t\t/* Data */\ndrivers/net/usb/aqc111.c:619:\t\t\t\taqc111_write16_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-620-\t\t\t\t\t\t   SFR_VLAN_ID_DATA0,\n--\ndrivers/net/usb/aqc111.c-622-\t\t\t\treg8 = SFR_VLAN_CONTROL_WE;\ndrivers/net/usb/aqc111.c:623:\t\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-624-\t\t\t\t\t\t SFR_VLAN_ID_CONTROL,\n--\ndrivers/net/usb/aqc111.c-626-\t\t\t}\ndrivers/net/usb/aqc111.c:627:\t\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-628-\t\t\t\t\t1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-629-\t\t\treg8 |= SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:630:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-631-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-632-\t\t} else {\ndrivers/net/usb/aqc111.c:633:\t\t\taqc111_read_cmd(dev, AQ_ACCESS_MAC, SFR_VLAN_ID_CONTROL,\ndrivers/net/usb/aqc111.c-634-\t\t\t\t\t1, 1, \u0026reg8);\ndrivers/net/usb/aqc111.c-635-\t\t\treg8 \u0026= ~SFR_VLAN_CONTROL_VFE;\ndrivers/net/usb/aqc111.c:636:\t\t\taqc111_write_cmd(dev, AQ_ACCESS_MAC,\ndrivers/net/usb/aqc111.c-637-\t\t\t\t\t SFR_VLAN_ID_CONTROL, 1, 1, \u0026reg8);\n--\ndrivers/net/usb/aqc111.c-643-\ndrivers/net/usb/aqc111.c:644:static const struct net_device_ops aqc111_netdev_ops = {\ndrivers/net/usb/aqc111.c-645-\t.ndo_open\t\t= usbnet_open,\n--\ndrivers/net/usb/aqc111.c-649-\t.ndo_get_stats64\t= dev_get_tstats64,\ndrivers/net/usb/aqc111.c:650:\t.ndo_change_mtu\t\t= aqc111_change_mtu,\ndrivers/net/usb/aqc111.c:651:\t.ndo_set_mac_address\t= aqc111_set_mac_addr,\ndrivers/net/usb/aqc111.c-652-\t.ndo_validate_addr\t= eth_validate_addr,\ndrivers/net/usb/aqc111.c:653:\t.ndo_vlan_rx_add_vid\t= aqc111_vlan_rx_add_vid,\ndrivers/net/usb/aqc111.c:654:\t.ndo_vlan_rx_kill_vid\t= aqc111_vlan_rx_kill_vid,\ndrivers/net/usb/aqc111.c:655:\t.ndo_set_rx_mode\t= aqc111_set_rx_mode,\ndrivers/net/usb/aqc111.c:656:\t.ndo_set_features\t= aqc111_set_features,\ndrivers/net/usb/aqc111.c-657-};\ndrivers/net/usb/aqc111.c-658-\ndrivers/net/usb/aqc111.c:659:static int aqc111_read_perm_mac(struct usbnet *dev)\ndrivers/net/usb/aqc111.c-660-{\n--\ndrivers/net/usb/aqc111.c-663-\ndrivers/net/usb/aqc111.c:664:\tret = aqc111_read_cmd(dev, AQ_FLASH_PARAMETERS, 0, 0, ETH_ALEN, buf);\ndrivers/net/usb/aqc111.c-665-\tif (ret \u003c 0)\n--\ndrivers/net/usb/aqc111.c-674-\ndrivers/net/usb/aqc111.c:675:static void aqc111_read_fw_version(struct usbnet *dev,\ndrivers/net/usb/aqc111.c:676:\t\t\t\t   struct aqc111_data *aqc111_data)\ndrivers/net/usb/aqc111.c-677-{\ndrivers/net/usb/aqc111.c:678:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MAJOR,\ndrivers/net/usb/aqc111.c:679:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.major);\ndrivers/net/usb/aqc111.c:680:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MINOR,\ndrivers/net/usb/aqc111.c:681:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.minor);\ndrivers/net/usb/aqc111.c:682:\taqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_REV,\ndrivers/net/usb/aqc111.c:683:\t\t\t1, 1, \u0026aqc111_data-\u003efw_ver.rev);\ndrivers/net/usb/aqc111.c-684-\ndrivers/net/usb/aqc111.c:685:\tif (aqc111_data-\u003efw_ver.major \u0026 0x80)\ndrivers/net/usb/aqc111.c:686:\t\taqc111_data-\u003efw_ver.major \u0026= ~0x80;\ndrivers/net/usb/aqc111.c-687-}\ndrivers/net/usb/aqc111.c-688-\ndrivers/net/usb/aqc111.c:689:static int aqc111_bind(struct usbnet *dev, struct usb_interface *intf)\ndrivers/net/usb/aqc111.c-690-{\n--\ndrivers/net/usb/aqc111.c-692-\tenum usb_device_speed usb_speed = udev-\u003espeed;\ndrivers/net/usb/aqc111.c:693:\tstruct aqc111_data *aqc111_data;\ndrivers/net/usb/aqc111.c-694-\tint ret;\n--\ndrivers/net/usb/aqc111.c-709-\ndrivers/net/usb/aqc111.c:710:\taqc111_data = kzalloc_obj(*aqc111_data);\ndrivers/net/usb/aqc111.c:711:\tif (!aqc111_data)\ndrivers/net/usb/aqc111.c-712-\t\treturn -ENOMEM;\ndrivers/net/usb/aqc111.c-713-\ndrivers/net/usb/aqc111.c:714:\t/* store aqc111_data pointer in device data field */\ndrivers/net/usb/aqc111.c:715:\tdev-\u003edriver_priv = aqc111_data;\ndrivers/net/usb/aqc111.c-716-\ndrivers/net/usb/aqc111.c-717-\t/* Init the MAC address */\ndrivers/net/usb/aqc111.c:718:\tret = aqc111_read_perm_mac(dev);\ndrivers/net/usb/aqc111.c-719-\tif (ret)\n--\ndrivers/net/usb/aqc111.c-732-\ndrivers/net/usb/aqc111.c:733:\tdev-\u003enet-\u003enetdev_ops = \u0026aqc111_netdev_ops;\ndrivers/net/usb/aqc111.c:734:\tdev-\u003enet-\u003eethtool_ops = \u0026aqc111_ethtool_ops;\ndrivers/net/usb/aqc111.c-735-\n--\ndrivers/net/usb/aqc111.c-744-\ndrivers/net/usb/aqc111.c:745:\taqc111_read_fw_version(dev, aqc111_data);\ndrivers/net/usb/aqc111.c:746:\taqc111_data-\u003eautoneg = AUTONEG_ENABLE;\ndrivers/net/usb/aqc111.c:747:\taqc111_data-\u003eadvertised_speed = (usb_speed == USB_SPEED_SUPER) ?\ndrivers/net/usb/aqc111.c-748-\t\t\t\t\t SPEED_5000 : SPEED_1000;\n--\ndrivers/net/usb/aqc111.c-752-out:\ndrivers/net/usb/aqc111.c:753:\tkfree(aqc111_data);\ndrivers/net/usb/aqc111.c-754-\treturn ret;\n--\ndrivers/net/usb/aqc111.c-756-\ndrivers/net/usb/aqc111.c:757:static void aqc111_unbind(struct usbnet *dev, struct usb_interface *intf)\ndrivers/net/usb/aqc111.c-758-{\ndrivers/net/usb/aqc111.c:759:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-760-\tu16 reg16;\n--\ndrivers/net/usb/aqc111.c-763-\treg16 = SFR_PHYPWR_RSTCTL_BZ;\ndrivers/net/usb/aqc111.c:764:\taqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,\ndrivers/net/usb/aqc111.c-765-\t\t\t\t2, \u0026reg16);\ndrivers/net/usb/aqc111.c-766-\treg16 = 0;\ndrivers/net/usb/aqc111.c:767:\taqc111_write16_cmd_nopm(dev, AQ_ACCESS_MAC, SFR_PHYPWR_RSTCTL,\ndrivers/net/usb/aqc111.c-768-\t\t\t\t2, \u0026reg16);\n--\ndrivers/net/usb/aqc111.c-770-\t/* Power down ethernet PHY */\ndrivers/net/usb/aqc111.c:771:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_ADV_MASK;\ndrivers/net/usb/aqc111.c:772:\taqc111_data-\u003ephy_cfg |= AQ_LOW_POWER;\ndrivers/net/usb/aqc111.c:773:\taqc111_data-\u003ephy_cfg \u0026= ~AQ_PHY_POWER_EN;\ndrivers/net/usb/aqc111.c:774:\taqc111_write32_cmd_nopm(dev, AQ_PHY_OPS, 0, 0,\ndrivers/net/usb/aqc111.c:775:\t\t\t\t\u0026aqc111_data-\u003ephy_cfg);\ndrivers/net/usb/aqc111.c-776-\ndrivers/net/usb/aqc111.c:777:\tkfree(aqc111_data);\ndrivers/net/usb/aqc111.c-778-}\ndrivers/net/usb/aqc111.c-779-\ndrivers/net/usb/aqc111.c:780:static void aqc111_status(struct usbnet *dev, struct urb *urb)\ndrivers/net/usb/aqc111.c-781-{\ndrivers/net/usb/aqc111.c:782:\tstruct aqc111_data *aqc111_data = dev-\u003edriver_priv;\ndrivers/net/usb/aqc111.c-783-\tu64 *event_data = NULL;\n--\ndrivers/net/usb/aqc111.c-796-\ndrivers/net/usb/aqc111.c:797:\taqc111_data-\u003elink_speed = (*event_data \u0026 AQ_SPEED_MASK) \u003e\u003e\ndrivers/net/usb/aqc111.c-798-\t\t\t\t  AQ_SPEED_SHIFT;\ndrivers/net/usb/aqc111.c:799:\taqc111_data-\u003elink = link;\ndrivers/net/usb/aqc111.c-800-\n--\ndrivers/net/usb/aqc111.c-804-\ndrivers/net/usb/aqc111.c:805:static void aqc111_configure_rx(struct usbnet *dev,\ndrivers/net/usb/aqc111.c:806:\t\t\t\tstruct aqc111_data *aqc111_data)\ndrivers/net/usb/aqc111.c-807-{\n--\ndrivers/net/usb/aqc111.c-817-\tbuf[2] = 0x07;\ndrivers/net/usb/aqc111.c:818:\tswitch (aqc111_data-\u003elink_speed) {\ndrivers/net/usb/aqc111.c-819-\tcase AQ_INT_SPEED_5G:\n\n"
}

gemini-3.1-pro-preview

							input: 25023
							output: 37
							thoughts: 43

Okay, here's my interpretation of that thought process, assuming I'm deep in the weeds with network driver configuration:

**Navigating the Kconfig Maze: AUSB_NET_AQC111 Analysis**

Right, so the system is telling me the relevant configuration option is `CONFIG_USB_NET_AQC111`. My brain immediately clicks over to the Kconfig files. This implies we're dealing with a USB network adapter, specifically one leveraging the AQC111 chipset.

My next move is automatic – I need to dig into the `drivers/net/usb/Kconfig` file. That's the logical place where the configuration options for USB network drivers are defined. I have to verify the option's presence there, and maybe get a hint on what it controls. I'll need to confirm the symbol `USB_NET_AQC111` is actually defined, which would tell me if the driver for the AQC111 is intended to be built as a loadable module or built into the kernel. I will also be looking for any dependencies and dependencies on other kernel subsystems. I may also need to check the dependencies on other symbols to ensure all required components are enabled.

{
  "Expression": "USB_NET_AQC111",
  "PathPrefix": "drivers/net/usb/Kconfig"
}

{
  "Output": "drivers/net/usb/Kconfig=614=config USB_NET_CH9200\n--\ndrivers/net/usb/Kconfig-624-\ndrivers/net/usb/Kconfig:625:config USB_NET_AQC111\ndrivers/net/usb/Kconfig-626-\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n"
}

gemini-3.1-pro-preview

							input: 25475
							output: 38
							thoughts: 231

**Analyzing the AQC111 Ethernet Driver Configuration**

Okay, so I'm looking at the `USB_NET_AQC111` config – that's the starting point. My focus needs to be on the `aqc111_set_mac_addr` function; that's the one the patch seems to touch. Let's see... are there any other functions in the driver to consider? Right, there's `aqc111_bind`, `aqc111_reset`, and `aqc111_change_mtu`, but the patch is *only* about `aqc111_set_mac_addr`.

Now, I need to verify that `aqc111_set_mac_addr` is actually accessible. Alright, it's assigned to `ndo_set_mac_address`, which is good. That links it up to `dev_set_mac_address`. Okay, and *that* can be reached through `dev_ioctl` (specifically the `SIOCSIFHWADDR` command) or even netlink (the `RTM_NEWLINK` message). Perfect. That means it's definitely reachable and can be tested, even with `dummy_hcd` to simulate the USB host side.

Let's quickly ensure that there aren't any other configuration dependencies beyond the obvious one: `USB_NET_AQC111` depends on `USB_USBNET`. All seems to be in order from what I can see.

{
  "Expression": "config USB_NET_AQC111",
  "PathPrefix": "drivers/net/usb/Kconfig"
}

{
  "Output": "drivers/net/usb/Kconfig=614=config USB_NET_CH9200\n--\ndrivers/net/usb/Kconfig-624-\ndrivers/net/usb/Kconfig:625:config USB_NET_AQC111\ndrivers/net/usb/Kconfig-626-\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n"
}

gemini-3.1-pro-preview

							input: 26190
							output: 36
							thoughts: 20

Here's my take on the Kconfig entry for `USB_NET_AQC111`.

**Analyzing the USB_NET_AQC111 Kconfig Entry**

Okay, let's dive into this `USB_NET_AQC111` Kconfig entry. My immediate focus is on understanding its dependencies, default settings, and any relevant descriptions or help text. I want to quickly ascertain what conditions must be met for this driver to even be considered, and what the baseline configuration will look like if it's selected. I'll be looking for hints about the hardware requirements – is this tied to a specific USB controller, or chipset? Are there any module dependencies I need to be aware of? Are there conflicting options I need to look out for, or will there be any potential interactions with other networking stacks?

I'm mentally mapping the placement of this entry within the broader Kconfig hierarchy. Is it under a general "USB Networking" section, or something more specific? The hierarchy location provides vital context.

Once I have a high-level picture, I'll pay close attention to the `select` statements and how they might affect other configurations. And, of course, I'm checking for any `depends on` statements or `default` value assignments. Are these simple boolean values or more complex expressions? Ultimately, I want to be able to predict the behavior of the configuration system with this option.

{
  "File": "drivers/net/usb/Kconfig",
  "FirstLine": 620,
  "LineCount": 20
}

{
  "Contents": " 620:\t\t  CH9200 chipset.\n 621:\t\n 622:\t\t  To compile this driver as a module, choose M here: the\n 623:\t\t  module will be called ch9200.\n 624:\t\n 625:\tconfig USB_NET_AQC111\n 626:\t\ttristate \"Aquantia AQtion USB to 5/2.5GbE Controllers support\"\n 627:\t\tdepends on USB_USBNET\n 628:\t\tselect CRC32\n 629:\t\thelp\n 630:\t\t  This option adds support for Aquantia AQtion USB\n 631:\t\t  Ethernet adapters based on AQC111U/AQC112 chips.\n 632:\t\n 633:\t\t  This driver should work with at least the following devices:\n 634:\t\t  * Aquantia AQtion USB to 5GbE\n 635:\t\n 636:\tconfig USB_RTL8153_ECM\n 637:\t\ttristate\n 638:\t\tdepends on USB_NET_CDCETHER \u0026\u0026 (USB_RTL8152 || USB_RTL8152=n)\n 639:\t\tdefault y\n"
}

gemini-3.1-pro-preview

							input: 26880
							output: 120
							thoughts: 219

**Analysis of a Potential Fuzzing Target**

Okay, so I've got this patch targeting the `aqc111_set_mac_addr` function, which, as I understand it, is responsible for setting the MAC address on a specific USB network adapter, the AQC111. The configuration is `USB_NET_AQC111`, meaning that driver is enabled by that configuration option.

The core of the issue is this: the patch is changing the return value of `aqc111_set_mac_addr`. Currently, it returns the number of bytes transferred by `usb_control_msg` upon success, which isn't standard practice for `ndo_set_mac_address`. The patch changes this to the more expected return of 0 for success.

My expert opinion is, and this is where I'm leaning towards fuzzing, that this is a *functional change* within a potentially *reachable* USB network driver. The fact that it's a *functional change* is crucial – changes in behavior are often more susceptible to causing unexpected problems, like memory corruption or other subtle bugs. The fact that the driver is reachable (meaning it's *usable*) is another huge plus.

Therefore, I'm recommending this patch for fuzzing. Specifically, I'd focus fuzzing on the `aqc111_set_mac_addr` function itself. The key configuration item that needs to be enabled for this is `USB_NET_AQC111`.

{
  "EnableConfigs": [
    "USB_NET_AQC111"
  ],
  "FocusSymbols": [
    "aqc111_set_mac_addr"
  ],
  "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.",
  "WorthFuzzing": true
}

{
  "EnableConfigs": [
    "USB_NET_AQC111"
  ],
  "FocusSymbols": [
    "aqc111_set_mac_addr"
  ],
  "Reasoning": "The patch fixes the return value of `aqc111_set_mac_addr` (which implements `ndo_set_mac_address`) to return 0 on success instead of the number of bytes transferred by `usb_control_msg`. This is a functional change in a reachable USB network driver.",
  "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)