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authorEnzo Matsumiya <ematsumiya@suse.de>2022-10-12 22:53:09 -0500
committerSteve French <stfrench@microsoft.com>2022-10-13 09:36:39 -0500
commitd7173623bf0b1503bc4e6f13cd0fccab5e98c6ce (patch)
treec5a1df48298e7e9b31ef8faa5de508cc94e44a8c /fs/cifs/cifssmb.c
parente4029e072673d8a694f660f551609dd4f9265088 (diff)
downloadlinux-d7173623bf0b1503bc4e6f13cd0fccab5e98c6ce.tar.gz
cifs: use ALIGN() and round_up() macros
Improve code readability by using existing macros:

Replace hardcoded alignment computations (e.g. (len + 7) & ~0x7) by
ALIGN()/IS_ALIGNED() macros.

Also replace (DIV_ROUND_UP(len, 8) * 8) with ALIGN(len, 8), which, if
not optimized by the compiler, has the overhead of a multiplication
and a division. Do the same for roundup() by replacing it by round_up()
(division-less version, but requires the multiple to be a power of 2,
which is always the case for us).

And remove some unnecessary checks where !IS_ALIGNED() would fit, but
calling round_up() directly is fine as it's a no-op if the value is
already aligned.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
-rw-r--r--fs/cifs/cifssmb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 7a808e41b1b8..1724066c1536 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2305,7 +2305,7 @@ int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *pTcon,
 					remap);
 	}
 	rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
-	count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str);
+	count = sizeof(struct set_file_rename) + (2 * len_of_str);
 	byte_count += count;
 	pSMB->DataCount = cpu_to_le16(count);
 	pSMB->TotalDataCount = pSMB->DataCount;