[PATCH RESEND net v4 2/4] virtio/vsock: remove redundant 'skb_pull()' call

Arseniy Krasnov posted 4 patches 2 years, 5 months ago
[PATCH RESEND net v4 2/4] virtio/vsock: remove redundant 'skb_pull()' call
Posted by Arseniy Krasnov 2 years, 5 months ago
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>
---
 net/vmw_vsock/virtio_transport_common.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 618680fd9906..9a411475e201 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);
-- 
2.25.1
Re: [PATCH RESEND net v4 2/4] virtio/vsock: remove redundant 'skb_pull()' call
Posted by Bobby Eshleman 2 years, 6 months ago
On Tue, Mar 14, 2023 at 02:06:53PM +0300, Arseniy Krasnov wrote:
> 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>
> ---
>  net/vmw_vsock/virtio_transport_common.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
> index 618680fd9906..9a411475e201 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);
> -- 
> 2.25.1

Acked-by: Bobby Eshleman <bobby.eshleman@bytedance.com>