tree: https://github.com/0day-ci/linux/commits/UPDATE-20211105-042601/Coly-Li/b... head: d9060ab757bd509ac3746469f23bf3e22a53f8ea commit: d9060ab757bd509ac3746469f23bf3e22a53f8ea bcache: Revert "bcache: use bvec_virt" date: 11 days ago config: hexagon-randconfig-r045-20211105 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 847a6807332b13f43704327c2d30103ec0347c77) 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://github.com/0day-ci/linux/commit/d9060ab757bd509ac3746469f23bf3e22... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20211105-042601/Coly-Li/bcache-Revert-bcache-use-bvec_virt/20211103-231427 git checkout d9060ab757bd509ac3746469f23bf3e22a53f8ea # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon 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 >>): size_t len = min(size, PAGE_SIZE - offset); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:45:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(x, y, <) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 1 warning generated. vim +280 drivers/md/bcache/util.c 257 258 /** 259 * bch_bio_alloc_pages - allocates a single page for each bvec in a bio 260 * @bio: bio to allocate pages for 261 * @data: if non-NULL copy data from here into the newly allocate pages 262 * @size: size to allocate 263 * @gfp_mask: flags for allocation 264 * 265 * Allocates pages up to @bio->bi_vcnt. 266 * 267 * Returns 0 on success, -ENOMEM on failure. On failure, any allocated pages are 268 * freed. 269 */ 270 int bch_bio_alloc_pages(struct bio *bio, void *data, size_t size, gfp_t gfp) 271 { 272 struct bvec_iter iter; 273 struct bio_vec bv; 274 275 BUG_ON(bio->bi_vcnt); 276 277 while (size) { 278 struct page *page = alloc_page(gfp); 279 unsigned int offset = offset_in_page(page); --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org