Hi zhangshida, kernel test robot noticed the following build warnings:
[auto build test WARNING on axboe/for-next] [also build test WARNING on xfs-linux/for-next nvdimm/libnvdimm-for-next linus/master brauner-vfs/vfs.all v6.18 next-20251205] [cannot apply to nvdimm/dax-misc] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/zhangshida/md-bcache-fix-improper-use-of-bi_end_io/20251129-170348 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next patch link: https://lore.kernel.org/r/20251129090122.2457896-4-zhangshida%40kylinos.cn patch subject: [PATCH v3 3/9] block: prevent race condition on bi_status in __bio_chain_endio config: loongarch-randconfig-r133-20251130 (https://download.01.org/0day-ci/archive/20251207/[email protected]/config) compiler: loongarch64-linux-gcc (GCC) 14.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251207/[email protected]/reproduce) 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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ sparse warnings: (new ones prefixed by >>) >> block/bio.c:319:17: sparse: sparse: cast from restricted blk_status_t >> block/bio.c:319:17: sparse: sparse: cast from restricted blk_status_t >> block/bio.c:319:17: sparse: sparse: cast to restricted blk_status_t vim +319 block/bio.c 313 314 static struct bio *__bio_chain_endio(struct bio *bio) 315 { 316 struct bio *parent = bio->bi_private; 317 318 if (bio->bi_status) > 319 cmpxchg(&parent->bi_status, 0, bio->bi_status); 320 321 bio_put(bio); 322 return parent; 323 } 324 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
