linux-kernel - [PATCH 3.19.y-ckt 22/40] macvtap: segmented packet is consumed

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Message-Id: <1464197443-20056-23-git-send-email-kamal@canonical.com>
Date:	Wed, 25 May 2016 10:30:25 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Eric Dumazet <edumazet@...gle.com>,
	Vlad Yasevich <vyasevic@...hat.com>,
	"David S . Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 22/40] macvtap: segmented packet is consumed

3.19.8-ckt22 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Eric Dumazet <edumazet@...gle.com>

commit be0bd3160165e42783d8215f426e41c07179c08a upstream.

If GSO packet is segmented and its segments are properly queued,
we call consume_skb() instead of kfree_skb() to be drop monitor
friendly.

Fixes: 3e4f8b7873709 ("macvtap: Perform GSO on forwarding path.")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Cc: Vlad Yasevich <vyasevic@...hat.com>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/net/macvtap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 005a407..d80eed5 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -324,7 +324,7 @@ static rx_handler_result_t macvtap_handle_frame(struct sk_buff **pskb)
 			goto wake_up;
 		}
 
-		kfree_skb(skb);
+		consume_skb(skb);
 		while (segs) {
 			struct sk_buff *nskb = segs->next;
 
-- 
2.7.4