tree: https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable.git linux-5.4.y head: 32f28e611d66c134f14ab2a9c4e825899360185c commit: 6a881d4790ecb0b526712a358073a364ca67d95b [175/304] f2fs: compress: support zstd compress algorithm 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; New smatch warnings: fs/f2fs/compress.c:433 zstd_decompress_pages() warn: should '((1) << 12) << dic->log_cluster_size' be a 64 bit type? Old smatch warnings: fs/f2fs/compress.c:277 lz4_decompress_pages() warn: should '((1) << 12) << dic->log_cluster_size' be a 64 bit type? vim +433 fs/f2fs/compress.c 408 409 static int zstd_decompress_pages(struct decompress_io_ctx *dic) 410 { 411 ZSTD_DStream *stream = dic->private2; 412 ZSTD_inBuffer inbuf; 413 ZSTD_outBuffer outbuf; 414 int ret; 415 416 inbuf.pos = 0; 417 inbuf.src = dic->cbuf->cdata; 418 inbuf.size = dic->clen; 419 420 outbuf.pos = 0; 421 outbuf.dst = dic->rbuf; 422 outbuf.size = dic->rlen; 423 424 ret = ZSTD_decompressStream(stream, &outbuf, &inbuf); 425 if (ZSTD_isError(ret)) { 426 printk_ratelimited("%sF2FS-fs (%s): %s ZSTD_compressStream failed, ret: %d\n", 427 KERN_ERR, F2FS_I_SB(dic->inode)->sb->s_id, 428 __func__, ZSTD_getErrorCode(ret)); 429 return -EIO; 430 } 431 432 if (dic->rlen != outbuf.pos) { 434 "expected:%lu\n", KERN_ERR, 435 F2FS_I_SB(dic->inode)->sb->s_id, 436 __func__, dic->rlen, 437 PAGE_SIZE << dic->log_cluster_size); 438 return -EIO; 439 } 440 441 return 0; 442 } 443 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org