Yang Yingliang <yangyingliang@xxxxxxxxxx> wrote:
> It is not allowed to call kfree_skb() or consume_skb() from hardware
> interrupt context or with hardware interrupts being disabled.
>
> It should use dev_kfree_skb_irq() or dev_consume_skb_irq() instead.
> The difference between them is free reason, dev_kfree_skb_irq() means
> the SKB is dropped in error and dev_consume_skb_irq() means the SKB
> is consumed in normal.
>
> In this case, dev_kfree_skb() is called to free and drop the SKB when
> it's shutdown, so replace it with dev_kfree_skb_irq(). Compile tested
> only.
>
> Fixes: 26f1fad29ad9 ("New driver: rtl8xxxu (mac80211)")
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> Reviewed-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Patch applied to wireless-next.git, thanks.
4c2005ac8768 wifi: rtl8xxxu: don't call dev_kfree_skb() under spin_lock_irqsave()
--
https://patchwork.kernel.org/project/linux-wireless/patch/20221208143517.2383424-1-yangyingliang@xxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
