tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 43d8c124ec4624389b14d42595e5f0195e3e5a1d commit: 89fa7dcff5e533bd14396601f40c388cfb6c1e59 [2679/2679] bpf-rvi: block: Add diskstats iterator target config: arm64-randconfig-004-20250814 (https://download.01.org/0day-ci/archive/20250814/202508142059.0te3dxlW-lkp@i...) compiler: aarch64-linux-gcc (GCC) 13.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250814/202508142059.0te3dxlW-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/202508142059.0te3dxlW-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

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