netdev - [PATCH net-next 10/10] gianfar: Carefully free skbs in functions called by netpoll.

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Message-ID: <877g80a0v9.fsf_-_@xmission.com>
Date:	Tue, 11 Mar 2014 14:20:26 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	David Miller <davem@...emloft.net>
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org,
	xiyou.wangcong@...il.com, mpm@...enic.com, satyam.sharma@...il.com
Subject: [PATCH net-next 10/10] gianfar: Carefully free skbs in functions called by netpoll.


netpoll can call functions in hard irq context that are ordinarily
called in lesser contexts.  For those functions use dev_kfree_skb_any
and dev_consume_skb_any so skbs are freed safely from hard irq
context.

Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 drivers/net/ethernet/freescale/gianfar.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index c5b9320f7629..4d000f844390 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2146,13 +2146,13 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb_new = skb_realloc_headroom(skb, fcb_len);
 		if (!skb_new) {
 			dev->stats.tx_errors++;
-			kfree_skb(skb);
+			dev_kfree_skb_any(skb);
 			return NETDEV_TX_OK;
 		}
 
 		if (skb->sk)
 			skb_set_owner_w(skb_new, skb->sk);
-		consume_skb(skb);
+		dev_consume_skb_any(skb);
 		skb = skb_new;
 	}
 
-- 
1.7.5.4

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