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xen/netback: don't call kfree_skb() under spin_lock_irqsave()

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It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So replace kfree_skb()
with dev_kfree_skb_irq() under spin_lock_irqsave().

Fixes: be81992f90 ("xen/netback: don't queue unlimited number of packages")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20221205141333.3974565-1-yangyingliang@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yang Yingliang 2022-12-05 22:13:33 +08:00 committed by Paolo Abeni
parent 92439a8590
commit 9e62465185
1 changed files with 1 additions and 1 deletions
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2
drivers/net/xen-netback/rx.c
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@ -92,7 +92,7 @@ void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb)
struct net_device *dev = queue->vif->dev;
netif_tx_stop_queue(netdev_get_tx_queue(dev, queue->id));
kfree_skb(skb);
dev_kfree_skb_irq(skb);
queue->vif->dev->stats.rx_dropped++;
} else {
if (skb_queue_empty(&queue->rx_queue))