tree: https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable.git linux-5.4.y head: 32f28e611d66c134f14ab2a9c4e825899360185c commit: e0edeff7d744dd471f7264bac4824a8f4e3b613f [68/304] f2fs: support data compression config: i386-randconfig-m021-20200811 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; smatch warnings: fs/f2fs/compress.c:276 lz4_decompress_pages() warn: should '((1) << 12) << dic->log_cluster_size' be a 64 bit type? vim +276 fs/f2fs/compress.c 262 263 static int lz4_decompress_pages(struct decompress_io_ctx *dic) 264 { 265 int ret; 266 267 ret = LZ4_decompress_safe(dic->cbuf->cdata, dic->rbuf, 268 dic->clen, dic->rlen); 269 if (ret < 0) { 270 printk_ratelimited("%sF2FS-fs (%s): lz4 decompress failed, ret:%d\n", 271 KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id, ret); 272 return -EIO; 273 } 274 275 if (ret != PAGE_SIZE << dic->log_cluster_size) { 277 "expected:%lu\n", KERN_ERR, 278 F2FS_I_SB(dic->inode)->sb->s_id, 279 dic->rlen, 280 PAGE_SIZE << dic->log_cluster_size); 281 return -EIO; 282 } 283 return 0; 284 } 285 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org