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Commit ab6f6dd1 authored by Ursula Braun's avatar Ursula Braun Committed by David S. Miller
Browse files

net/smc: use announced length in sock_recvmsg() 



Not every CLC proposal message needs the maximum buffer length.
Due to the MSG_WAITALL flag, it is important to use the peeked
real length when receiving the message.

Fixes: d63d271c ("smc: switch to sock_recvmsg()")
Signed-off-by: default avatarUrsula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b85ab56c

net/smc/smc_clc.c

+1 −1
Original line number Diff line number Diff line
@@ -133,7 +133,7 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen, 


	/* receive the complete CLC message */

	memset(&msg, 0, sizeof(struct msghdr));

	iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &vec, 1, buflen);

	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);