It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled. This patchset is trying to add all skb to a free list, then free them after spin_unlock_irqrestore() at once. v1 -> v2: change subject prefix to "wifi: rtlwifi: ..." Yang Yingliang (3): wifi: rtlwifi: rtl8821ae: don't call kfree_skb() under spin_lock_irqsave() wifi: rtlwifi: rtl8188ee: don't call kfree_skb() under spin_lock_irqsave() wifi: rtlwifi: rtl8723be: don't call kfree_skb() under spin_lock_irqsave() drivers/net/wireless/realtek/rtlwifi/rtl8188ee/hw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 6 +++++- 3 files changed, 15 insertions(+), 3 deletions(-) -- 2.25.1