| Message ID | 1524655799-12112-1-git-send-email-thunder.leizhen@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] ocfs2: eliminate a misreported warning | expand |
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index ab30c005..994726a 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -402,7 +402,7 @@ static int ocfs2_info_handle_freeinode(struct inode *inode, 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)
Below warning can not be happened, because the parameter chunksize passed from ocfs2_info_freefrag_scan_chain-->ocfs2_info_update_ffg is guaranteed to be positive. So __ilog2_u32 is impossible 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] Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> --- fs/ocfs2/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.8.3