[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <6584731f9eab1_82de3294d0@willemb.c.googlers.com.notmuch>
Date: Thu, 21 Dec 2023 12:17:19 -0500
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Mina Almasry <almasrymina@...gle.com>,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
kvm@...r.kernel.org,
virtualization@...ts.linux.dev
Cc: Mina Almasry <almasrymina@...gle.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Stefan Hajnoczi <stefanha@...hat.com>,
Stefano Garzarella <sgarzare@...hat.com>,
David Howells <dhowells@...hat.com>,
Jason Gunthorpe <jgg@...dia.com>,
Christian König <christian.koenig@....com>,
Shakeel Butt <shakeelb@...gle.com>,
Yunsheng Lin <linyunsheng@...wei.com>,
Willem de Bruijn <willemdebruijn.kernel@...il.com>
Subject: Re: [PATCH net-next v3 1/3] vsock/virtio: use skb_frag_*() helpers
Mina Almasry wrote:
> Minor fix for virtio: code wanting to access the fields inside an skb
> frag should use the skb_frag_*() helpers, instead of accessing the
> fields directly. This allows for extensions where the underlying
> memory is not a page.
>
> Signed-off-by: Mina Almasry <almasrymina@...gle.com>
>
> ---
>
> v2:
>
> - Also fix skb_frag_off() + skb_frag_size() (David)
> - Did not apply the reviewed-by from Stefano since the patch changed
> relatively much.
>
> ---
> net/vmw_vsock/virtio_transport.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
> index f495b9e5186b..1748268e0694 100644
> --- a/net/vmw_vsock/virtio_transport.c
> +++ b/net/vmw_vsock/virtio_transport.c
> @@ -153,10 +153,10 @@ virtio_transport_send_pkt_work(struct work_struct *work)
> * 'virt_to_phys()' later to fill the buffer descriptor.
> * We don't touch memory at "virtual" address of this page.
> */
> - va = page_to_virt(skb_frag->bv_page);
> + va = page_to_virt(skb_frag_page(skb_frag));
> sg_init_one(sgs[out_sg],
> - va + skb_frag->bv_offset,
> - skb_frag->bv_len);
> + va + skb_frag_off(skb_frag),
> + skb_frag_size(skb_frag));
> out_sg++;
> }
> }
If there are requests for further revision in the series, can send
this virtio cleanup on its own to get it off the stack.
> --
> 2.43.0.472.g3155946c3a-goog
>
Powered by blists - more mailing lists