summaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorZhang Xiaoxu <zhangxiaoxu5@huawei.com>2022-08-23 15:52:01 +0300
committerSteve French <stfrench@microsoft.com>2022-08-25 06:30:04 +0300
commitb6b3624d016b980f917b46e6b964f943ac5ac56e (patch)
tree9e4f32f4d9907a54ba5287606763b395bb036ce7 /fs
parent9789de8bdc92a9ec95c9bc7b43e94de91acc4460 (diff)
downloadlinux-b6b3624d016b980f917b46e6b964f943ac5ac56e.tar.xz
cifs: Use help macro to get the mid header size
It's better to use MID_HEADER_SIZE because the unfolded expression too long. No actual functional changes, minor readability improvement. Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/cifsglob.h1
-rw-r--r--fs/cifs/connect.c9
2 files changed, 4 insertions, 6 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index b15b84d03fb6..6c8293314530 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -558,6 +558,7 @@ struct smb_version_values {
#define HEADER_SIZE(server) (server->vals->header_size)
#define MAX_HEADER_SIZE(server) (server->vals->max_header_size)
#define HEADER_PREAMBLE_SIZE(server) (server->vals->header_preamble_size)
+#define MID_HEADER_SIZE(server) (HEADER_SIZE(server) - 1 - HEADER_PREAMBLE_SIZE(server))
/**
* CIFS superblock mount flags (mnt_cifs_flags) to consider when
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ccf7f32e0c3e..0123f41c26f5 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1065,8 +1065,7 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
/* now read the rest */
length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1,
- pdu_length - HEADER_SIZE(server) + 1 +
- HEADER_PREAMBLE_SIZE(server));
+ pdu_length - MID_HEADER_SIZE(server));
if (length < 0)
return length;
@@ -1198,8 +1197,7 @@ next_pdu:
server->pdu_size = pdu_length;
/* make sure we have enough to get to the MID */
- if (server->pdu_size < HEADER_SIZE(server) - 1 -
- HEADER_PREAMBLE_SIZE(server)) {
+ if (server->pdu_size < MID_HEADER_SIZE(server)) {
cifs_server_dbg(VFS, "SMB response too short (%u bytes)\n",
server->pdu_size);
cifs_reconnect(server, true);
@@ -1209,8 +1207,7 @@ next_pdu:
/* read down to the MID */
length = cifs_read_from_socket(server,
buf + HEADER_PREAMBLE_SIZE(server),
- HEADER_SIZE(server) - 1 -
- HEADER_PREAMBLE_SIZE(server));
+ MID_HEADER_SIZE(server));
if (length < 0)
continue;
server->total_read += length;