netdev - [PATCH] net: arcnet: Do not call kfree_skb() under local_irq

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Date: Thu, 24 Aug 2023 14:43:36 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <netdev@...r.kernel.org>, Michael Grzeschik <m.grzeschik@...gutronix.de>,
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH] net: arcnet: Do not call kfree_skb() under local_irq_disable()

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@...wei.com>
---
 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 99265667538c..d9e052c49ba1 100644
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -464,7 +464,7 @@ static void arcnet_reply_tasklet(struct tasklet_struct *t)
 
 	ret = sock_queue_err_skb(sk, ackskb);
 	if (ret)
-		kfree_skb(ackskb);
+		dev_kfree_skb_irq(ackskb);
 
 	local_irq_enable();
 };
-- 
2.34.1