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| author | Zhen Lei <thunder.leizhen@huawei.com> | 2018-06-07 17:04:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-07 17:34:33 -0700 |
| commit | 731a40fab1b305ad71e2b769c0e3550c092dc215 (patch) | |
| tree | e5c2f38cd11a57efb67c441a0e3566f6166992e4 | |
| parent | 133b81f28edebfd9b20486351589e460e8c052e4 (diff) | |
| download | linux-731a40fab1b305ad71e2b769c0e3550c092dc215.tar.bz2 | |
ocfs2: eliminate a misreported warning
The warning is invalid because the parameter chunksize passed from
ocfs2_info_freefrag_scan_chain-->ocfs2_info_update_ffg is guaranteed to
be positive. So __ilog2_u32 cannot return -1.
fs/ocfs2/ioctl.c: In function 'ocfs2_info_update_ffg':
fs/ocfs2/ioctl.c:411:17: warning: array subscript is below array bounds [-Warray-bounds]
hist->fc_chunks[index]++;
^
fs/ocfs2/ioctl.c:411:17: warning: array subscript is below array bounds [-Warray-bounds]
Link: http://lkml.kernel.org/r/1524655799-12112-1-git-send-email-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/ocfs2/ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index ab30c005cc4b..994726ada857 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -402,7 +402,7 @@ out_err: static void o2ffg_update_histogram(struct ocfs2_info_free_chunk_list *hist, unsigned int chunksize) { - int index; + u32 index; index = __ilog2_u32(chunksize); if (index >= OCFS2_INFO_MAX_HIST) |