From 9e624651859214fb2c4e442b059eba0aefcd0801 Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Mon, 5 Dec 2022 22:13:33 +0800 Subject: [PATCH] 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: be81992f9086 ("xen/netback: don't queue unlimited number of packages") Signed-off-by: Yang Yingliang Reviewed-by: Paul Durrant Link: https://lore.kernel.org/r/20221205141333.3974565-1-yangyingliang@huawei.com Signed-off-by: Paolo Abeni --- drivers/net/xen-netback/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c index 93276217..d022206 100644 --- a/drivers/net/xen-netback/rx.c +++ b/drivers/net/xen-netback/rx.c @@ -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)) -- 2.7.4