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>

diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index 717449b1da0b73d924488d43cd04ed0871607d1b..ae5d168653cecf804b20e49f27bb39bcf0385081 100644 (file)
--- 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;
 }