2022-09-30 12:19:51

by Chen Zhongjin

[permalink] [raw]
Subject: [PATCH -next 2/2] net/rds: Remove unused variable 'total_payload_len'

Reported by Clang [-Wunused-but-set-variable]

'commit f9fb69adb6c7 ("RDS: make message size limit compliant with spec")'
This commit introduced the variable 'total_copied'. However this variable
is never used by other code except iterates itself, so remove it.

Signed-off-by: Chen Zhongjin <[email protected]>
---
net/rds/send.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/rds/send.c b/net/rds/send.c
index 0c5504068e3c..5e57a1581dc6 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -1114,7 +1114,7 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len)
struct rds_conn_path *cpath;
struct in6_addr daddr;
__u32 scope_id = 0;
- size_t total_payload_len = payload_len, rdma_payload_len = 0;
+ size_t rdma_payload_len = 0;
bool zcopy = ((msg->msg_flags & MSG_ZEROCOPY) &&
sock_flag(rds_rs_to_sk(rs), SOCK_ZEROCOPY));
int num_sgs = DIV_ROUND_UP(payload_len, PAGE_SIZE);
@@ -1243,7 +1243,6 @@ int rds_sendmsg(struct socket *sock, struct msghdr *msg, size_t payload_len)
if (ret)
goto out;

- total_payload_len += rdma_payload_len;
if (max_t(size_t, payload_len, rdma_payload_len) > RDS_MAX_MSG_SIZE) {
ret = -EMSGSIZE;
goto out;
--
2.33.0