From 270bc6427b89c996ec7eb657dc66f20e4a3b297b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 15 Mar 2015 20:32:09 +0000
Subject: kernel: skip GRO for packets bridged to other hosts

Eliminates excessive skb copying when bridging from LAN to WLAN on
ramips.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44797
---
 .../680-net-skip-gro-for-otherhost-packets.patch             | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 target/linux/generic/patches-3.18/680-net-skip-gro-for-otherhost-packets.patch

(limited to 'target/linux/generic/patches-3.18/680-net-skip-gro-for-otherhost-packets.patch')

diff --git a/target/linux/generic/patches-3.18/680-net-skip-gro-for-otherhost-packets.patch b/target/linux/generic/patches-3.18/680-net-skip-gro-for-otherhost-packets.patch
new file mode 100644
index 0000000..3adc4e3
--- /dev/null
+++ b/target/linux/generic/patches-3.18/680-net-skip-gro-for-otherhost-packets.patch
@@ -0,0 +1,12 @@
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -4003,6 +4003,9 @@ static enum gro_result dev_gro_receive(s
+ 	enum gro_result ret;
+ 	int grow;
+ 
++	if (skb->pkt_type == PACKET_OTHERHOST)
++		goto normal;
++
+ 	if (!(skb->dev->features & NETIF_F_GRO))
+ 		goto normal;
+ 
-- 
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