[PATCH 4.14 36/38] net: plip: dont call kfree_skb/dev_kfree_skb() under spin_lock_irq()

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Yang Yingliang <yangyingliang@huawei.com>

[ Upstream commit 7d8c19bfc8ff3f78e5337107ca9246327fcb6b45 ]

It is not allowed to call kfree_skb() or consume_skb() from
hardware interrupt context or with interrupts being disabled.
So replace kfree_skb/dev_kfree_skb() with dev_kfree_skb_irq()
and dev_consume_skb_irq() under spin_lock_irq().

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20221207015310.2984909-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/plip/plip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c
index 3c55ea357f35..f4eaafb84cbe 100644
--- a/drivers/net/plip/plip.c
+++ b/drivers/net/plip/plip.c
@@ -448,12 +448,12 @@ plip_bh_timeout_error(struct net_device *dev, struct net_local *nl,
 	}
 	rcv->state = PLIP_PK_DONE;
 	if (rcv->skb) {
-		kfree_skb(rcv->skb);
+		dev_kfree_skb_irq(rcv->skb);
 		rcv->skb = NULL;
 	}
 	snd->state = PLIP_PK_DONE;
 	if (snd->skb) {
-		dev_kfree_skb(snd->skb);
+		dev_consume_skb_irq(snd->skb);
 		snd->skb = NULL;
 	}
 	spin_unlock_irq(&nl->lock);
-- 
2.35.1