Re: question on context of kfree_skb()

Muli Ben-Yehuda (
Tue, 31 Dec 2002 00:26:52 +0200

On Mon, Dec 30, 2002 at 07:32:15PM +0100, Oliver Neukum wrote:
> Hi,
> I am getting reports about kfree_skb being called in hard IRQ.
> Which context should it be called in?

kfree_skb() should be called when you are not in hard irq context
(i.e. in_irq() returns false). Same thing for dev_kfree_skb(), which
is a #define for kfree_skb(). Not in hard irq context means you are
either in softirq context (bottom half) or process context.

dev_kfree_skb_irq() should be called when you are in interrupt

dev_kfree_skb_any() should be called when you could be either
executing in interrupt context or not.

Muli Ben-Yehuda

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