From 1da8c681d5c122afe9fbadc02e92a0f9e3f7af44 Mon Sep 17 00:00:00 2001 From: Willem de Bruijn Date: Thu, 7 Apr 2016 11:44:58 -0400 Subject: sunrpc: do not pull udp headers on receive Commit e6afc8ace6dd modified the udp receive path by pulling the udp header before queuing an skbuff onto the receive queue. Sunrpc also calls skb_recv_datagram to dequeue an skb from a udp socket. Modify this receive path to also no longer expect udp headers. Fixes: e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") Reported-by: Franklin S Cooper Jr. Signed-off-by: Willem de Bruijn Tested-by: Thierry Reding Signed-off-by: David S. Miller --- net/sunrpc/svcsock.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'net/sunrpc/svcsock.c') diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 1413cdcc131c..71d6072664d2 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -617,7 +617,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp) svsk->sk_sk->sk_stamp = skb->tstamp; set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); /* there may be more data... */ - len = skb->len - sizeof(struct udphdr); + len = skb->len; rqstp->rq_arg.len = len; rqstp->rq_prot = IPPROTO_UDP; @@ -641,8 +641,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp) skb_free_datagram_locked(svsk->sk_sk, skb); } else { /* we can use it in-place */ - rqstp->rq_arg.head[0].iov_base = skb->data + - sizeof(struct udphdr); + rqstp->rq_arg.head[0].iov_base = skb->data; rqstp->rq_arg.head[0].iov_len = len; if (skb_checksum_complete(skb)) goto out_free; -- cgit v1.2.3-59-g8ed1b