From: Lucas Stach <l.stach@pengutronix.de>
Date: Wed, 17 Jan 2024 21:06:28 +0000 (+0100)
Subject: SUNRPC: use request size to initialize bio_vec in svc_udp_sendto()
X-Git-Tag: v6.6.17~617
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3f5aab7efd402b7494eeacb00f352f8f20b40d2d;p=platform%2Fkernel%2Flinux-rpi.git

SUNRPC: use request size to initialize bio_vec in svc_udp_sendto()

[ Upstream commit 1d9cabe2817edd215779dc9c2fe5e7ab9aac0704 ]

Use the proper size when setting up the bio_vec, as otherwise only
zero-length UDP packets will be sent.

Fixes: baabf59c2414 ("SUNRPC: Convert svc_udp_sendto() to use the per-socket bio_vec array")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 9986874..e0ce427 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -717,12 +717,12 @@ static int svc_udp_sendto(struct svc_rqst *rqstp)
 				ARRAY_SIZE(rqstp->rq_bvec), xdr);
 
 	iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, rqstp->rq_bvec,
-		      count, 0);
+		      count, rqstp->rq_res.len);
 	err = sock_sendmsg(svsk->sk_sock, &msg);
 	if (err == -ECONNREFUSED) {
 		/* ICMP error on earlier request. */
 		iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, rqstp->rq_bvec,
-			      count, 0);
+			      count, rqstp->rq_res.len);
 		err = sock_sendmsg(svsk->sk_sock, &msg);
 	}