linux-kernel - [PATCH net-next v2 2/2] net: Use lockdep_assert_in_softirq() in napi_consume

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Date:   Sat, 21 Nov 2020 11:06:16 +0800
From:   Yunsheng Lin <linyunsheng@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>, <will@...nel.org>,
        <viro@...iv.linux.org.uk>, <kyk.segfault@...il.com>,
        <davem@...emloft.net>, <kuba@...nel.org>, <linmiaohe@...wei.com>,
        <martin.varghese@...ia.com>, <pabeni@...hat.com>,
        <pshelar@....org>, <fw@...len.de>, <gnault@...hat.com>,
        <steffen.klassert@...unet.com>, <vladimir.oltean@....com>,
        <edumazet@...gle.com>, <saeed@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>
Subject: [PATCH net-next v2 2/2] net: Use lockdep_assert_in_softirq() in napi_consume_skb()

Use napi_consume_skb() to assert the case when it is not called
in a atomic softirq context.

Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com>
---
 net/core/skbuff.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ffe3dcc..effa19d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -902,6 +902,8 @@ void napi_consume_skb(struct sk_buff *skb, int budget)
 		return;
 	}
 
+	lockdep_assert_in_softirq();
+
 	if (!skb_unref(skb))
 		return;
 
-- 
2.8.1