Messages in this thread | | | Date | Sat, 27 Nov 2021 01:20:44 +0800 | From | kernel test robot <> | Subject | [t-kristo-pm:usi-5.16-rfc-v2-bpf 13/30] drivers/hid/hid-bpf.c:229:24: warning: no previous prototype for 'hid_bpf_add_report' |
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tree: https://github.com/t-kristo/linux-pm usi-5.16-rfc-v2-bpf head: 241207b4769fca049dfcc4dbde0bda92e4f67027 commit: db3fbbad76f810554bcb2c098f8c9beb02724702 [13/30] HID: bpf: add a helper to parse a given report descriptor config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20211127/202111270132.Dq7VKYca-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/t-kristo/linux-pm/commit/db3fbbad76f810554bcb2c098f8c9beb02724702 git remote add t-kristo-pm https://github.com/t-kristo/linux-pm git fetch --no-tags t-kristo-pm usi-5.16-rfc-v2-bpf git checkout db3fbbad76f810554bcb2c098f8c9beb02724702 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash drivers/hid/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/hid/hid-bpf.c:141:5: warning: no previous prototype for 'hid_bpf_prog_detach' [-Wmissing-prototypes] 141 | int hid_bpf_prog_detach(struct hid_device *hdev, struct bpf_prog *prog) | ^~~~~~~~~~~~~~~~~~~ >> drivers/hid/hid-bpf.c:229:24: warning: no previous prototype for 'hid_bpf_add_report' [-Wmissing-prototypes] 229 | struct hid_bpf_report *hid_bpf_add_report(struct hid_bpf_parser_and_data *data, | ^~~~~~~~~~~~~~~~~~ >> drivers/hid/hid-bpf.c:257:6: warning: no previous prototype for 'hid_bpf_free_reports' [-Wmissing-prototypes] 257 | void hid_bpf_free_reports(struct hid_bpf_parser_and_data *data) | ^~~~~~~~~~~~~~~~~~~~ drivers/hid/hid-bpf.c: In function '____bpf_hid_foreach_rdesc_item': drivers/hid/hid-bpf.c:403:9: error: implicit declaration of function 'BPF_CAST_CALL'; did you mean 'BPF_EMIT_CALL'? [-Werror=implicit-function-declaration] 403 | ret = BPF_CAST_CALL(callback_fn)((u64)(long)ctx, | ^~~~~~~~~~~~~ | BPF_EMIT_CALL drivers/hid/hid-bpf.c:403:9: error: called object is not a function or function pointer cc1: some warnings being treated as errors
vim +/hid_bpf_add_report +229 drivers/hid/hid-bpf.c
228 > 229 struct hid_bpf_report *hid_bpf_add_report(struct hid_bpf_parser_and_data *data, 230 unsigned int type, unsigned int id, 231 unsigned int application) 232 { 233 struct hid_bpf_report_enum *report_enum = data->report_enum + type; 234 struct hid_bpf_report *report; 235 236 if (id >= HID_MAX_IDS) 237 return NULL; 238 if (report_enum->report_id_hash[id]) 239 return report_enum->report_id_hash[id]; 240 241 report = kzalloc(sizeof(struct hid_bpf_report), GFP_KERNEL); 242 if (!report) 243 return NULL; 244 245 if (id != 0) 246 report_enum->numbered = 1; 247 248 report->id = id; 249 report->type = type; 250 report->size = 0; 251 report->application = application; 252 report_enum->report_id_hash[id] = report; 253 254 return report; 255 } 256 > 257 void hid_bpf_free_reports(struct hid_bpf_parser_and_data *data) 258 { 259 unsigned i, j; 260 261 for (i = 0; i < HID_REPORT_TYPES; i++) { 262 struct hid_bpf_report_enum *report_enum = data->report_enum + i; 263 264 for (j = 0; j < HID_MAX_IDS; j++) { 265 struct hid_bpf_report *report = report_enum->report_id_hash[j]; 266 kfree(report); 267 } 268 memset(report_enum, 0, sizeof(*report_enum)); 269 } 270 } 271
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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