Commit 88c05631 authored by Yang Yingliang's avatar Yang Yingliang Committed by sanglipeng
Browse files

wifi: rtl8xxxu: don't call dev_kfree_skb() under spin_lock_irqsave()

stable inclusion
from stable-v5.10.173
commit 75f4eed70a519717ea91347370207e57b97a632f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BFR3

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=75f4eed70a519717ea91347370207e57b97a632f



--------------------------------

[ Upstream commit 4c2005ac ]

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: 26f1fad2 ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Reviewed-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221208143517.2383424-1-yangyingliang@huawei.com


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 5cabc94c
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