tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9803fb968c8c2e1283f67b3baeb88e0adba435b4 commit: 82e6b1eee6a8875ef4eacfd60711cce6965c6b04 [7954/8516] bpf: Allow to specify user-provided bpf_cookie for BPF perf links config: i386-randconfig-r021-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 82e6b1eee6a8875ef4eacfd60711cce6965c6b04 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:956:1: warning: unused parameter 'cb' [-Wunused-parameter] TRACE_EVENT_CONDITION(i915_reg_rw, ^ include/linux/tracepoint.h:563:2: note: expanded from macro 'TRACE_EVENT_CONDITION' DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ ^ include/linux/tracepoint.h:424:2: note: expanded from macro 'DECLARE_TRACE_CONDITION' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:984:1: warning: unused parameter 'cb' [-Wunused-parameter] TRACE_EVENT(intel_gpu_freq_change, ^ include/linux/tracepoint.h:553:2: note: expanded from macro 'TRACE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:1026:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_ppgtt, i915_ppgtt_create, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:1031:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_ppgtt, i915_ppgtt_release, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:1063:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_context, i915_context_create, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: drivers/gpu/drm/i915/i915_trace.h:1068:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_context, i915_context_free, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: In file included from include/trace/../../drivers/gpu/drm/i915/i915_trace.h:1078: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:21: include/linux/trace_events.h:689:68: warning: unused parameter 'call' [-Wunused-parameter] static inline unsigned int trace_call_bpf(struct trace_event_call *call, void *ctx) ^ include/linux/trace_events.h:689:80: warning: unused parameter 'ctx' [-Wunused-parameter] static inline unsigned int trace_call_bpf(struct trace_event_call *call, void *ctx) ^ include/linux/trace_events.h:695:47: warning: unused parameter 'event' [-Wunused-parameter] perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog, u64 bpf_cookie) ^ include/linux/trace_events.h:695:71: warning: unused parameter 'prog' [-Wunused-parameter] perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog, u64 bpf_cookie) ^ >> include/linux/trace_events.h:695:81: warning: unused parameter 'bpf_cookie' [-Wunused-parameter] perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog, u64 bpf_cookie) ^ include/linux/trace_events.h:700:66: warning: unused parameter 'event' [-Wunused-parameter] static inline void perf_event_detach_bpf_prog(struct perf_event *event) { } ^ include/linux/trace_events.h:703:48: warning: unused parameter 'event' [-Wunused-parameter] perf_event_query_prog_array(struct perf_event *event, void __user *info) ^ include/linux/trace_events.h:703:68: warning: unused parameter 'info' [-Wunused-parameter] perf_event_query_prog_array(struct perf_event *event, void __user *info) ^ include/linux/trace_events.h:707:64: warning: unused parameter 'btp' [-Wunused-parameter] static inline int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *p) ^ include/linux/trace_events.h:707:86: warning: unused parameter 'p' [-Wunused-parameter] static inline int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *p) ^ include/linux/trace_events.h:711:66: warning: unused parameter 'btp' [-Wunused-parameter] static inline int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *p) ^ include/linux/trace_events.h:711:88: warning: unused parameter 'p' [-Wunused-parameter] static inline int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *p) ^ include/linux/trace_events.h:715:76: warning: unused parameter 'name' [-Wunused-parameter] static inline struct bpf_raw_event_map *bpf_get_raw_tracepoint(const char *name) ^ include/linux/trace_events.h:719:69: warning: unused parameter 'btp' [-Wunused-parameter] static inline void bpf_put_raw_tracepoint(struct bpf_raw_event_map *btp) ^ include/linux/trace_events.h:722:68: warning: unused parameter 'event' [-Wunused-parameter] static inline int bpf_get_perf_event_info(const struct perf_event *event, ^ include/linux/trace_events.h:723:13: warning: unused parameter 'prog_id' [-Wunused-parameter] u32 *prog_id, u32 *fd_type, ^ include/linux/trace_events.h:723:27: warning: unused parameter 'fd_type' [-Wunused-parameter] u32 *prog_id, u32 *fd_type, ^ include/linux/trace_events.h:724:21: warning: unused parameter 'buf' [-Wunused-parameter] const char **buf, u64 *probe_offset, ^ include/linux/trace_events.h:724:31: warning: unused parameter 'probe_offset' [-Wunused-parameter] const char **buf, u64 *probe_offset, ^ include/linux/trace_events.h:725:13: warning: unused parameter 'probe_addr' [-Wunused-parameter] u64 *probe_addr) ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: In file included from include/trace/../../drivers/gpu/drm/i915/i915_trace.h:1078: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:427: include/trace/../../drivers/gpu/drm/i915/i915_trace.h:24:1: warning: unused parameter 'flags' [-Wunused-parameter] TRACE_EVENT(intel_pipe_enable, ^ include/trace/trace_events.h:75:2: note: expanded from macro 'TRACE_EVENT' DECLARE_EVENT_CLASS(name, \ ^ include/trace/trace_events.h:379:58: note: expanded from macro 'DECLARE_EVENT_CLASS' trace_raw_output_##call(struct trace_iterator *iter, int flags, \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: In file included from include/trace/../../drivers/gpu/drm/i915/i915_trace.h:1078: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:427: include/trace/../../drivers/gpu/drm/i915/i915_trace.h:50:1: warning: unused parameter 'flags' [-Wunused-parameter] TRACE_EVENT(intel_pipe_disable, ^ include/trace/trace_events.h:75:2: note: expanded from macro 'TRACE_EVENT' DECLARE_EVENT_CLASS(name, \ ^ include/trace/trace_events.h:379:58: note: expanded from macro 'DECLARE_EVENT_CLASS' trace_raw_output_##call(struct trace_iterator *iter, int flags, \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: In file included from include/trace/../../drivers/gpu/drm/i915/i915_trace.h:1078: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:427: include/trace/../../drivers/gpu/drm/i915/i915_trace.h:77:1: warning: unused parameter 'flags' [-Wunused-parameter] TRACE_EVENT(intel_pipe_crc, ^ include/trace/trace_events.h:75:2: note: expanded from macro 'TRACE_EVENT' DECLARE_EVENT_CLASS(name, \ ^ include/trace/trace_events.h:379:58: note: expanded from macro 'DECLARE_EVENT_CLASS' trace_raw_output_##call(struct trace_iterator *iter, int flags, \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: In file included from include/trace/../../drivers/gpu/drm/i915/i915_trace.h:1078: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:427: include/trace/../../drivers/gpu/drm/i915/i915_trace.h:101:1: warning: unused parameter 'flags' [-Wunused-parameter] TRACE_EVENT(intel_cpu_fifo_underrun, ^ include/trace/trace_events.h:75:2: note: expanded from macro 'TRACE_EVENT' DECLARE_EVENT_CLASS(name, \ ^ include/trace/trace_events.h:379:58: note: expanded from macro 'DECLARE_EVENT_CLASS' trace_raw_output_##call(struct trace_iterator *iter, int flags, \ ^ In file included from drivers/gpu/drm/i915/i915_trace_points.c:13: vim +/bpf_cookie +695 include/linux/trace_events.h 693 694 static inline int > 695 perf_event_attach_bpf_prog(struct perf_event *event, struct bpf_prog *prog, u64 bpf_cookie)