netdev - [PATCH v3 15/17] virtio_net: virtnet_tx

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Date:   Wed, 26 Jan 2022 15:35:31 +0800
From:   Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>, bpf@...r.kernel.org
Subject: [PATCH v3 15/17] virtio_net: virtnet_tx_timeout() stop ref sq->vq

Make virtnet_tx_timeout() no longer refer to vq directly. Because sq->vq
may be equal to NULL after implementing rx/tx queue disable/enable.

Signed-off-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
---
 drivers/net/virtio_net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 97eb4dddba1f..2add7fe749b8 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2692,7 +2692,7 @@ static void virtnet_tx_timeout(struct net_device *dev, unsigned int txqueue)
 	u64_stats_update_end(&sq->stats.syncp);
 
 	netdev_err(dev, "TX timeout on queue: %u, sq: %s, vq: 0x%x, name: %s, %u usecs ago\n",
-		   txqueue, sq->name, sq->vq->index, sq->vq->name,
+		   txqueue, sq->name, txq2vq(sq - vi->sq), sq->name,
 		   jiffies_to_usecs(jiffies - READ_ONCE(txq->trans_start)));
 }
 
-- 
2.31.0