Commit 9e624651 authored by Yang Yingliang's avatar Yang Yingliang Committed by Paolo Abeni

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

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: be81992f ("xen/netback: don't queue unlimited number of packages")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Reviewed-by: default avatarPaul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20221205141333.3974565-1-yangyingliang@huawei.comSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 92439a85
......@@ -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))
......
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