Hi Stephen, I love your patch! Yet something to improve: [auto build test ERROR on 26291c54e111ff6ba87a164d85d4a4e134b7315c] url: https://github.com/0day-ci/linux/commits/Stephen-Boyd/Input-HID-Consolidate-ChromeOS-Vivaldi-keyboard-logic/20220205-042211 base: 26291c54e111ff6ba87a164d85d4a4e134b7315c config: x86_64-randconfig-a004-20220131 (https://download.01.org/0day-ci/archive/20220205/202202050807.BvUyitVE-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/83759eb892fd16fd0bb7ff4bb0c4baa4e7a0283e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Stephen-Boyd/Input-HID-Consolidate-ChromeOS-Vivaldi-keyboard-logic/20220205-042211 git checkout 83759eb892fd16fd0bb7ff4bb0c4baa4e7a0283e # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): vmlinux.o: warning: objtool: mce_start()+0x4e: call to clear_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_read_aux()+0x41: call to mca_msr_reg() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0x39d: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode()+0x4e: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x53: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x4e: call to on_thread_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0x4e: call to on_thread_stack() leaves .noinstr.text section ld: drivers/input/vivaldi-keymap.o: in function `vivaldi_hid_feature_mapping': >> drivers/input/vivaldi-keymap.c:73: undefined reference to `hid_alloc_report_buf' >> ld: drivers/input/vivaldi-keymap.c:90: undefined reference to `hid_hw_raw_request' >> ld: drivers/input/vivaldi-keymap.c:108: undefined reference to `hid_report_raw_event' vim +73 drivers/input/vivaldi-keymap.c 44 45 /** 46 * vivaldi_hid_feature_mapping - Fill out vivaldi keymap data exposed via HID 47 * @data: The vivaldi function keymap 48 * @hdev: HID device to parse 49 * @field: HID field to parse 50 * @usage: HID usage to parse 51 */ 52 void vivaldi_hid_feature_mapping(struct vivaldi_data *data, 53 struct hid_device *hdev, 54 struct hid_field *field, 55 struct hid_usage *usage) 56 { 57 struct hid_report *report = field->report; 58 int fn_key; 59 int ret; 60 u32 report_len; 61 u8 *report_data, *buf; 62 63 if (field->logical != HID_USAGE_FN_ROW_PHYSMAP || 64 (usage->hid & HID_USAGE_PAGE) != HID_UP_ORDINAL) 65 return; 66 67 fn_key = (usage->hid & HID_USAGE); 68 if (fn_key < VIVALDI_MIN_FN_ROW_KEY || fn_key > VIVALDI_MAX_FN_ROW_KEY) 69 return; 70 if (fn_key > data->num_function_row_keys) 71 data->num_function_row_keys = fn_key; 72 > 73 report_data = buf = hid_alloc_report_buf(report, GFP_KERNEL); 74 if (!report_data) 75 return; 76 77 report_len = hid_report_len(report); 78 if (!report->id) { 79 /* 80 * hid_hw_raw_request() will stuff report ID (which will be 0) 81 * into the first byte of the buffer even for unnumbered 82 * reports, so we need to account for this to avoid getting 83 * -EOVERFLOW in return. 84 * Note that hid_alloc_report_buf() adds 7 bytes to the size 85 * so we can safely say that we have space for an extra byte. 86 */ 87 report_len++; 88 } 89 > 90 ret = hid_hw_raw_request(hdev, report->id, report_data, 91 report_len, HID_FEATURE_REPORT, 92 HID_REQ_GET_REPORT); 93 if (ret < 0) { 94 dev_warn(&hdev->dev, "failed to fetch feature %d\n", 95 field->report->id); 96 goto out; 97 } 98 99 if (!report->id) { 100 /* 101 * Undo the damage from hid_hw_raw_request() for unnumbered 102 * reports. 103 */ 104 report_data++; 105 report_len--; 106 } 107 > 108 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, report_data, 109 report_len, 0); 110 if (ret) { 111 dev_warn(&hdev->dev, "failed to report feature %d\n", 112 field->report->id); 113 goto out; 114 } 115 116 data->function_row_physmap[fn_key - VIVALDI_MIN_FN_ROW_KEY] = 117 field->value[usage->usage_index]; 118 119 out: 120 kfree(buf); 121 } 122 EXPORT_SYMBOL_GPL(vivaldi_hid_feature_mapping); 123 #endif /* CONFIG_HID */ 124 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx