tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/build_id head: de806ae0b079ea38a0a6377ae3769631d7dc0aec commit: b54894acd9bdff82ee77f71fcf42eb891cb86a33 [12/24] perf tools: Store build id from mmap2 events config: i386-randconfig-m021-20201118 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; smatch warnings: kernel/events/core.c:8021 perf_event_mmap_output() warn: inconsistent indenting vim +8021 kernel/events/core.c 7973 7974 static void perf_event_mmap_output(struct perf_event *event, 7975 void *data) 7976 { 7977 struct perf_mmap_event *mmap_event = data; 7978 struct perf_output_handle handle; 7979 struct perf_sample_data sample; 7980 int size = mmap_event->event_id.header.size; 7981 u32 type = mmap_event->event_id.header.type; 7982 bool use_build_id; 7983 int ret; 7984 7985 if (!perf_event_mmap_match(event, data)) 7986 return; 7987 7988 if (event->attr.mmap2) { 7989 mmap_event->event_id.header.type = PERF_RECORD_MMAP2; 7990 mmap_event->event_id.header.size += sizeof(mmap_event->maj); 7991 mmap_event->event_id.header.size += sizeof(mmap_event->min); 7992 mmap_event->event_id.header.size += sizeof(mmap_event->ino); 7993 mmap_event->event_id.header.size += sizeof(mmap_event->ino_generation); 7994 mmap_event->event_id.header.size += sizeof(mmap_event->prot); 7995 mmap_event->event_id.header.size += sizeof(mmap_event->flags); 7996 } 7997 7998 perf_event_header__init_id(&mmap_event->event_id.header, &sample, event); 7999 ret = perf_output_begin(&handle, event, 8000 mmap_event->event_id.header.size); 8001 if (ret) 8002 goto out; 8003 8004 mmap_event->event_id.pid = perf_event_pid(event, current); 8005 mmap_event->event_id.tid = perf_event_tid(event, current); 8006 8007 use_build_id = event->attr.build_id && mmap_event->build_id_size; 8008 8009 if (event->attr.mmap2 && use_build_id) 8010 mmap_event->event_id.header.misc |= PERF_RECORD_MISC_MMAP_BUILD_ID; 8011 8012 perf_output_put(&handle, mmap_event->event_id); 8013 8014 if (event->attr.mmap2) { 8015 if (use_build_id) { 8016 u8 size[4] = { (u8) mmap_event->build_id_size, 0, 0, 0 }; 8017 8018 __output_copy(&handle, size, 4); 8019 __output_copy(&handle, mmap_event->build_id, BUILD_ID_SIZE); 8020 8022 trace_printk("build_id_size %u %s\n", mmap_event->build_id_size, mmap_event->file_name); 8023 8024 } else { 8025 perf_output_put(&handle, mmap_event->maj); 8026 perf_output_put(&handle, mmap_event->min); 8027 perf_output_put(&handle, mmap_event->ino); 8028 perf_output_put(&handle, mmap_event->ino_generation); 8029 } 8030 perf_output_put(&handle, mmap_event->prot); 8031 perf_output_put(&handle, mmap_event->flags); 8032 } 8033 8034 __output_copy(&handle, mmap_event->file_name, 8035 mmap_event->file_size); 8036 8037 perf_event__output_id_sample(event, &handle, &sample); 8038 8039 perf_output_end(&handle); 8040 out: 8041 mmap_event->event_id.header.size = size; 8042 mmap_event->event_id.header.type = type; 8043 } 8044 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org