From: Chuck Lever <chuck.lever@oracle.com>
Date: Mon, 12 Feb 2007 08:53:31 +0000 (-0800)
Subject: [PATCH] knfsd: SUNRPC: Don't set msg_name and msg_namelen when calling sock_recvmsg
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1ba951053f07187f6e77be664a4b6f8bf0ba7ae4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] knfsd: SUNRPC: Don't set msg_name and msg_namelen when calling sock_recvmsg

Clean-up: msg_name and msg_namelen are not used by sock_recvmsg, so don't
bother to set them in svc_recvfrom.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 1f97ed49fee2..a98be09768a0 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -569,21 +569,13 @@ static int
 svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, int buflen)
 {
 	struct svc_sock *svsk = rqstp->rq_sock;
-	struct msghdr	msg;
-	struct socket	*sock;
-	int		len;
-
-	rqstp->rq_addrlen = sizeof(rqstp->rq_addr);
-	sock = svsk->sk_sock;
-
-	msg.msg_name    = &rqstp->rq_addr;
-	msg.msg_namelen = sizeof(rqstp->rq_addr);
-	msg.msg_control = NULL;
-	msg.msg_controllen = 0;
-
-	msg.msg_flags	= MSG_DONTWAIT;
+	struct msghdr msg = {
+		.msg_flags	= MSG_DONTWAIT,
+	};
+	int len;
 
-	len = kernel_recvmsg(sock, &msg, iov, nr, buflen, MSG_DONTWAIT);
+	len = kernel_recvmsg(svsk->sk_sock, &msg, iov, nr, buflen,
+				msg.msg_flags);
 
 	/* sock_recvmsg doesn't fill in the name/namelen, so we must..
 	 */
@@ -591,7 +583,7 @@ svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, int buflen)
 	rqstp->rq_addrlen = svsk->sk_remotelen;
 
 	dprintk("svc: socket %p recvfrom(%p, %Zu) = %d\n",
-		rqstp->rq_sock, iov[0].iov_base, iov[0].iov_len, len);
+		svsk, iov[0].iov_base, iov[0].iov_len, len);
 
 	return len;
 }