netdev - [PATCH -next] net: ethernet: mediatek: use dev_kfree_skb_any instead of dev_kfree

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Message-Id: <1476982832-27932-1-git-send-email-weiyj.lk@gmail.com>
Date:   Thu, 20 Oct 2016 17:00:32 +0000
From:   Wei Yongjun <weiyj.lk@...il.com>
To:     Felix Fietkau <nbd@...nwrt.org>, John Crispin <blogic@...nwrt.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH -next] net: ethernet: mediatek: use dev_kfree_skb_any instead of dev_kfree_skb

From: Wei Yongjun <weiyongjun1@...wei.com>

Replace dev_kfree_skb with dev_kfree_skb_any in mtk_start_xmit()
which can be called from hard irq context (netpoll) and from
other contexts. mtk_start_xmit() only frees skbs that it has
dropped.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 8f80e61..d716274 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -843,7 +843,7 @@ static int mtk_start_xmit(struct sk_buff *skb, struct net_device *dev)
 drop:
 	spin_unlock(&eth->page_lock);
 	stats->tx_dropped++;
-	dev_kfree_skb(skb);
+	dev_kfree_skb_any(skb);
 	return NETDEV_TX_OK;
 }