This is a note to let you know that I've just added the patch titled wifi: wl3501_cs: don't call kfree_skb() under spin_lock_irqsave() to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: wifi-wl3501_cs-don-t-call-kfree_skb-under-spin_lock_.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 14be982bcd0addc893f642300954208e93cb938f Author: Yang Yingliang <yangyingliang@xxxxxxxxxx> Date: Wed Dec 7 23:04:53 2022 +0800 wifi: wl3501_cs: don't call kfree_skb() under spin_lock_irqsave() [ Upstream commit 44bacbdf9066c590423259dbd6d520baac99c1a8 ] 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(). Compile tested only. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx> Link: https://lore.kernel.org/r/20221207150453.114742-1-yangyingliang@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c index 1b532e00a56fb..7fb2f95134760 100644 --- a/drivers/net/wireless/wl3501_cs.c +++ b/drivers/net/wireless/wl3501_cs.c @@ -1328,7 +1328,7 @@ static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb, } else { ++dev->stats.tx_packets; dev->stats.tx_bytes += skb->len; - kfree_skb(skb); + dev_kfree_skb_irq(skb); if (this->tx_buffer_cnt < 2) netif_stop_queue(dev);