linux-kernel - [PATCH 3.16 082/114] macvtap: segmented packet is consumed

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Message-ID: <lsq.1465842997.870400540@decadent.org.uk>
Date:	Mon, 13 Jun 2016 19:36:37 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Shmulik Ladkani" <shmulik.ladkani@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	"Eric Dumazet" <edumazet@...gle.com>,
	"Vlad Yasevich" <vyasevic@...hat.com>
Subject: [PATCH 3.16 082/114] macvtap: segmented packet is consumed

3.16.36-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/macvtap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -310,7 +310,7 @@ static rx_handler_result_t macvtap_handl
 			goto wake_up;
 		}
 
-		kfree_skb(skb);
+		consume_skb(skb);
 		while (segs) {
 			struct sk_buff *nskb = segs->next;