Hi Daniel, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on next-20191202 next-20191204] [cannot apply to ext4/dev f2fs/dev-test v5.4 v5.4-rc8 v5.4-rc7 v5.4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Daniel-Rosenberg/Support-for-Casefolding-and-Encryption/20191203-131410 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 76bb8b05960c3d1668e6bee7624ed886cbd135ba reproduce: # apt-get install sparse # sparse version: v0.6.1-91-g817270f-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> fs/f2fs/dir.c:205:13: sparse: sparse: incorrect type in assignment (different base types) @@ expected int len @@ got restricted __le16 [usertyint len @@ >> fs/f2fs/dir.c:205:13: sparse: expected int len fs/f2fs/dir.c:205:13: sparse: got restricted __le16 [usertype] name_len -- >> fs/f2fs/hash.c:90:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le32 [usertype] f2fs_hash @@ got __le32 [usertype] f2fs_hash @@ >> fs/f2fs/hash.c:90:27: sparse: expected restricted __le32 [usertype] f2fs_hash >> fs/f2fs/hash.c:90:27: sparse: got unsigned long long fs/f2fs/hash.c:133:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __le32 @@ got e32 @@ fs/f2fs/hash.c:133:24: sparse: expected restricted __le32 fs/f2fs/hash.c:133:24: sparse: got int fs/f2fs/hash.c:141:11: sparse: sparse: incorrect type in assignment (different base types) @@ expected int r @@ got restricted __int r @@ fs/f2fs/hash.c:141:11: sparse: expected int r fs/f2fs/hash.c:141:11: sparse: got restricted __le32 fs/f2fs/hash.c:144:16: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __le32 @@ got le32 @@ fs/f2fs/hash.c:144:16: sparse: expected restricted __le32 fs/f2fs/hash.c:144:16: sparse: got int r vim +205 fs/f2fs/dir.c 199 200 if (de->hash_code != namehash) 201 return false; 202 203 #ifdef CONFIG_UNICODE 204 name = d->filename[bit_pos]; > 205 len = de->name_len; 206 207 if (sb->s_encoding && needs_casefold(parent)) { 208 if (cf_str->name) { 209 struct qstr cf = {.name = cf_str->name, 210 .len = cf_str->len}; 211 return !f2fs_ci_compare(parent, &cf, name, len, true); 212 } 213 return !f2fs_ci_compare(parent, fname->usr_fname, name, len, 214 false); 215 } 216 #endif 217 if (fscrypt_match_name(fname, d->filename[bit_pos], 218 le16_to_cpu(de->name_len))) 219 return true; 220 return false; 221 } 222 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation