tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 7bf6051b5c404918d02133a7e2aad8b059d6f6b0 commit: 89fa7dcff5e533bd14396601f40c388cfb6c1e59 [3508/3508] bpf-rvi: block: Add diskstats iterator target config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251210/202512101708.qm6iJ0uc-lkp@i...) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251210/202512101708.qm6iJ0uc-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512101708.qm6iJ0uc-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

block/genhd.c:100:6: warning: no previous prototype for 'part_stat_read_all' [-Wmissing-prototypes] 100 | void part_stat_read_all(struct block_device *part, struct disk_stats *stat) | ^~~~~~~~~~~~~~~~~~

vim +/part_stat_read_all +100 block/genhd.c 99

100 void part_stat_read_all(struct block_device *part, struct disk_stats *stat) 101 { 102 int cpu; 103 104 memset(stat, 0, sizeof(struct disk_stats)); 105 for_each_possible_cpu(cpu) { 106 struct disk_stats *ptr = per_cpu_ptr(part->bd_stats, cpu); 107 int group; 108 109 for (group = 0; group < NR_STAT_GROUPS; group++) { 110 stat->nsecs[group] += ptr->nsecs[group]; 111 stat->sectors[group] += ptr->sectors[group]; 112 stat->ios[group] += ptr->ios[group]; 113 stat->merges[group] += ptr->merges[group]; 114 } 115 116 stat->io_ticks += ptr->io_ticks; 117 } 118 } 119

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki