netdev - Re: [PATCH] virtio_net: Remove BUG() to aviod machine dead

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Message-ID: <20210520073536.wwt35gsz62bv27hm@steredhat>
Date:   Thu, 20 May 2021 09:35:36 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     Xianting Tian <xianting.tian@...ux.alibaba.com>
Cc:     mst@...hat.com, jasowang@...hat.com, davem@...emloft.net,
        kuba@...nel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] virtio_net: Remove BUG() to aviod machine dead

If you need to respin, there is a typo in the title s/aviod/avoid/

On Tue, May 18, 2021 at 05:46:56PM +0800, Xianting Tian wrote:
>When met error, we output a print to avoid a BUG().
>
>Signed-off-by: Xianting Tian <xianting.tian@...ux.alibaba.com>
>---
> drivers/net/virtio_net.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
>index c921ebf3ae82..a66174d13e81 100644
>--- a/drivers/net/virtio_net.c
>+++ b/drivers/net/virtio_net.c
>@@ -1647,9 +1647,8 @@ static int xmit_skb(struct send_queue *sq, 
>struct sk_buff *skb)
> 		hdr = skb_vnet_hdr(skb);
>
> 	if (virtio_net_hdr_from_skb(skb, &hdr->hdr,
>-				    virtio_is_little_endian(vi->vdev), false,
>-				    0))
>-		BUG();
>+				virtio_is_little_endian(vi->vdev), false, 0))
                                 ^
                                 This change is not related.

>+		return -EPROTO;
>
> 	if (vi->mergeable_rx_bufs)
> 		hdr->num_buffers = 0;
>-- 
>2.17.1
>