tree: https://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git fscrypt-dio-support head: 7bf5b39672a543edac8dcce75e57758563a7ca6b commit: 3ec1c215d23bd5c4381368a60deb057164a84230 [4/15] block: respect blk_crypto_bio_sectors_alignment() in blk-crypto-fallback config: h8300-randconfig-r003-20210211 (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 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://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git/commit/?id=3ec1c215... git remote add fscrypt https://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git git fetch --no-tags fscrypt fscrypt-dio-support git checkout 3ec1c215d23bd5c4381368a60deb057164a84230 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/kernel.h:13, from include/linux/crypto.h:16, from include/crypto/skcipher.h:11, from block/blk-crypto-fallback.c:12: block/blk-crypto-fallback.c: In function 'blk_crypto_split_bio_if_needed': 225 | num_sectors = round_down(len, | ^~~ include/linux/math.h:34:28: note: in definition of macro 'round_down' 34 | #define round_down(x, y) ((x) & ~__round_mask(x, y)) | ^ block/blk-crypto-fallback.c:225:28: note: each undeclared identifier is reported only once for each function it appears in 225 | num_sectors = round_down(len, | ^~~ include/linux/math.h:34:28: note: in definition of macro 'round_down' 34 | #define round_down(x, y) ((x) & ~__round_mask(x, y)) | ^ vim +/len +225 block/blk-crypto-fallback.c 208 209 static bool blk_crypto_split_bio_if_needed(struct bio **bio_ptr) 210 { 211 struct bio *bio = *bio_ptr; 212 unsigned int i = 0; 213 unsigned int num_sectors = 0; 214 struct bio_vec bv; 215 struct bvec_iter iter; 216 217 bio_for_each_segment(bv, bio, iter) { 218 num_sectors += bv.bv_len >> SECTOR_SHIFT; 219 if (++i == BIO_MAX_PAGES) 220 break; 221 } 222 if (num_sectors < bio_sectors(bio)) { 223 struct bio *split_bio; 224 226 blk_crypto_bio_sectors_alignment(bio)); 227 split_bio = bio_split(bio, num_sectors, GFP_NOIO, NULL); 228 if (!split_bio) { 229 bio->bi_status = BLK_STS_RESOURCE; 230 return false; 231 } 232 bio_chain(split_bio, bio); 233 submit_bio_noacct(bio); 234 *bio_ptr = split_bio; 235 } 236 237 return true; 238 } 239 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org