* [f2fs:dev-test /56] fs/f2fs/gc.c:1426:44: sparse: cast to restricted __le32
@ 2019-03-13 23:33 kbuild test robot
0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2019-03-13 23:33 UTC (permalink / raw)
To: Qiuyang Sun; +Cc: Jaegeuk Kim, kbuild-all, linux-f2fs-devel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
head: 904ecfcd9f95aba239695c5d90233f158f838919
commit: 481a85e8a4e54513d8551f01d00d81e39e37ec01 [/56] f2fs-dev: ioctl for removing a range from F2FS
reproduce:
# apt-get install sparse
git checkout 481a85e8a4e54513d8551f01d00d81e39e37ec01
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
sparse warnings: (new ones prefixed by >>)
>> fs/f2fs/gc.c:1426:44: sparse: cast to restricted __le32
>> fs/f2fs/gc.c:1426:44: sparse: cast from restricted __le64
>> fs/f2fs/gc.c:1426:42: sparse: incorrect type in assignment (different base types) @@ expected restricted __le64 [usertype] block_count @@ got restricted __le64 [usertype] block_count @@
fs/f2fs/gc.c:1426:42: expected restricted __le64 [usertype] block_count
fs/f2fs/gc.c:1426:42: got restricted __le32 [usertype] <noident>
vim +1426 fs/f2fs/gc.c
1389
1390 int f2fs_resize_from_end(struct f2fs_sb_info *sbi, size_t resize_len)
1391 {
1392 unsigned int section_size = F2FS_BLKSIZE * BLKS_PER_SEC(sbi);
1393 unsigned int secs = (resize_len + section_size - 1) / section_size;
1394 int gc_mode;
1395
1396 if (secs * BLKS_PER_SEC(sbi) + valid_user_blocks(sbi) +
1397 sbi->current_reserved_blocks + sbi->unusable_block_count +
1398 F2FS_OPTION(sbi).root_reserved_blocks > sbi->user_block_count)
1399 return -ENOSPC;
1400
1401 mutex_lock(&DIRTY_I(sbi)->seglist_lock);
1402 NEW_MAIN_SECS(sbi) = MAIN_SECS(sbi) - secs;
1403 for (gc_mode = 0; gc_mode < MAX_GC_POLICY; gc_mode++)
1404 if (SIT_I(sbi)->last_victim[gc_mode] >=
1405 NEW_MAIN_SECS(sbi) * sbi->segs_per_sec)
1406 SIT_I(sbi)->last_victim[gc_mode] = 0;
1407 mutex_unlock(&DIRTY_I(sbi)->seglist_lock);
1408
1409 free_segment_range(sbi, NEW_MAIN_SECS(sbi) * sbi->segs_per_sec,
1410 MAIN_SEGS(sbi) - 1);
1411
1412 /* Update FS metadata */
1413 SM_I(sbi)->segment_count -= secs * sbi->segs_per_sec;
1414 MAIN_SECS(sbi) = NEW_MAIN_SECS(sbi);
1415 MAIN_SEGS(sbi) = MAIN_SECS(sbi) * sbi->segs_per_sec;
1416 sbi->user_block_count -= secs * BLKS_PER_SEC(sbi);
1417 sbi->ckpt->user_block_count = cpu_to_le64(sbi->user_block_count);
1418 FREE_I(sbi)->free_sections -= secs;
1419 FREE_I(sbi)->free_segments -= secs * sbi->segs_per_sec;
1420
1421 /* Update superblock */
1422 F2FS_RAW_SUPER(sbi)->section_count = cpu_to_le32(MAIN_SECS(sbi));
1423 F2FS_RAW_SUPER(sbi)->segment_count = cpu_to_le32(le32_to_cpu(
1424 F2FS_RAW_SUPER(sbi)->segment_count) - secs * sbi->segs_per_sec);
1425 F2FS_RAW_SUPER(sbi)->segment_count_main = cpu_to_le32(MAIN_SEGS(sbi));
> 1426 F2FS_RAW_SUPER(sbi)->block_count = cpu_to_le32(le32_to_cpu(
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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