[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20221207015310.2984909-1-yangyingliang@huawei.com>
Date: Wed, 7 Dec 2022 09:53:10 +0800
From: Yang Yingliang <yangyingliang@...wei.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
<pabeni@...hat.com>
Subject: [PATCH net v2] net: plip: don't call kfree_skb/dev_kfree_skb() under spin_lock_irq()
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@...wei.com>
---
v1 -> v2:
Add a fix tag.
---
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 c8791e9b451d..40ce8abe6999 100644
--- a/drivers/net/plip/plip.c
+++ b/drivers/net/plip/plip.c
@@ -450,12 +450,12 @@ 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);
--
2.25.1
Powered by blists - more mailing lists