4.14-stable review patch. If anyone has any objections, please let me know.
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From: Jinjie Ruan ruanjinjie@huawei.com
[ Upstream commit 786c96e92fb9e854cb8b0cb7399bb2fb28e15c4b ]
It is not allowed to call kfree_skb() from hardware interrupt context or with hardware interrupts being disabled. So replace kfree_skb() with dev_kfree_skb_irq() under local_irq_disable(). Compile tested only.
Fixes: 05fcd31cc472 ("arcnet: add err_skb package for package status feedback") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/arcnet/arcnet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c index 998bc7bc7d1f0..0f02d2b3438f2 100644 --- a/drivers/net/arcnet/arcnet.c +++ b/drivers/net/arcnet/arcnet.c @@ -433,7 +433,7 @@ static void arcnet_reply_tasklet(unsigned long data)
ret = sock_queue_err_skb(sk, ackskb); if (ret) - kfree_skb(ackskb); + dev_kfree_skb_irq(ackskb);
local_irq_enable(); };