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ext4: annotate more implicit fall throughs 

There is a plan to build the kernel with -Wimplicit-fallthrough and
these places in the code produced warnings (W=1). Fix them up.

This commit remove the following warnings:

  fs/ext4/indirect.c:1182:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  fs/ext4/indirect.c:1188:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  fs/ext4/indirect.c:1432:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  fs/ext4/indirect.c:1440:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
This commit is contained in:
Mathieu Malaterre 2019-02-21 10:51:27 -05:00 committed by Theodore Ts'o
parent 034f891a84
commit 793bc5181b
1 changed files with 6 additions and 0 deletions
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6
fs/ext4/indirect.c
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@ -1183,18 +1183,21 @@ do_indirects:
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
i_data[EXT4_IND_BLOCK] = 0;
}
/* fall through */
case EXT4_IND_BLOCK:
nr = i_data[EXT4_DIND_BLOCK];
if (nr) {
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
i_data[EXT4_DIND_BLOCK] = 0;
}
/* fall through */
case EXT4_DIND_BLOCK:
nr = i_data[EXT4_TIND_BLOCK];
if (nr) {
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
i_data[EXT4_TIND_BLOCK] = 0;
}
/* fall through */
case EXT4_TIND_BLOCK:
;
}
@ -1433,6 +1436,7 @@ do_indirects:
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
i_data[EXT4_IND_BLOCK] = 0;
}
/* fall through */
case EXT4_IND_BLOCK:
if (++n >= n2)
return 0;
@ -1441,6 +1445,7 @@ do_indirects:
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
i_data[EXT4_DIND_BLOCK] = 0;
}
/* fall through */
case EXT4_DIND_BLOCK:
if (++n >= n2)
return 0;
@ -1449,6 +1454,7 @@ do_indirects:
ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
i_data[EXT4_TIND_BLOCK] = 0;
}
/* fall through */
case EXT4_TIND_BLOCK:
;
}