netdev - [PATCH net 1/4] net: emaclite: don't call dev_kfree_skb() under spin_lock

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Message-ID: <20221207073215.3545460-2-yangyingliang@huawei.com>
Date:   Wed, 7 Dec 2022 15:32:12 +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>, Yang Yingliang <yangyingliang@...wei.com>,
        Michal Simek <michal.simek@...inx.com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH net 1/4] net: emaclite: don't call dev_kfree_skb() under spin_lock_irqsave()

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

Fixes: bb81b2ddfa19 ("net: add Xilinx emac lite device driver")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index a3967f8de417..a1e1387ea84e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -536,7 +536,7 @@ static void xemaclite_tx_timeout(struct net_device *dev, unsigned int txqueue)
 	xemaclite_enable_interrupts(lp);
 
 	if (lp->deferred_skb) {
-		dev_kfree_skb(lp->deferred_skb);
+		dev_consume_skb_irq(lp->deferred_skb);
 		lp->deferred_skb = NULL;
 		dev->stats.tx_errors++;
 	}
-- 
2.25.1