net/smc: reset recv timeout after clc handshake

During clc handshake the receive timeout is set to CLC_WAIT_TIME.
Remember and reset the original timeout value after the receive calls,
and remove a duplicate assignment of CLC_WAIT_TIME.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index 717449b1da0b..ae5d168653ce 100644
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -250,6 +250,7 @@ out:
 int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
                      u8 expected_type)
 {
+        long rcvtimeo = smc->clcsock->sk->sk_rcvtimeo;
         struct sock *clc_sk = smc->clcsock->sk;
         struct smc_clc_msg_hdr *clcm = buf;
         struct msghdr msg = {NULL, 0};
@@ -306,7 +307,6 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
         memset(&msg, 0, sizeof(struct msghdr));
         iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, datlen);
         krflags = MSG_WAITALL;
-        smc->clcsock->sk->sk_rcvtimeo = CLC_WAIT_TIME;
         len = sock_recvmsg(smc->clcsock, &msg, krflags);
         if (len < datlen || !smc_clc_msg_hdr_valid(clcm)) {
                 smc->sk.sk_err = EPROTO;
@@ -322,6 +322,7 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
         }
 
 out:
+        smc->clcsock->sk->sk_rcvtimeo = rcvtimeo;
         return reason_code;
 }