From: Arseniy Krasnov <avkrasnov@sberdevices.ru>
Date: Tue, 14 Mar 2023 11:06:53 +0000 (+0300)
Subject: virtio/vsock: remove redundant 'skb_pull()' call
X-Git-Tag: v6.1.63~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=883a3db2212c5a314bf515b74736b1051f93485d;p=sdk%2Femulator%2Femulator-kernel.git

virtio/vsock: remove redundant 'skb_pull()' call

commit 6825e6b4f8e53799d83bc39ca6ec5baed4e2adde upstream.

Since we now no longer use 'skb->len' to update credit, there is no sense
to update skbuff state, because it is used only once after dequeue to
copy data and then will be released.

Fixes: 71dc9ec9ac7d ("virtio/vsock: replace virtio_vsock_pkt with sk_buff")
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index c06d03b7d3b1..2edda404eb20 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -465,7 +465,6 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk,
 					dequeued_len = err;
 				} else {
 					user_buf_len -= bytes_to_copy;
-					skb_pull(skb, bytes_to_copy);
 				}
 
 				spin_lock_bh(&vvs->rx_lock);