Patch "veth: set peer GSO values" has been added to the 3.18-stable tree

Patch "veth: set peer GSO values" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    veth: set peer GSO values

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     veth-set-peer-gso-values.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Mar 19 10:11:52 CET 2018
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Thu, 7 Dec 2017 15:40:20 -0800
Subject: veth: set peer GSO values

From: Stephen Hemminger <stephen@networkplumber.org>


[ Upstream commit 72d24955b44a4039db54a1c252b5031969eeaac3 ]

When new veth is created, and GSO values have been configured
on one device, clone those values to the peer.

For example:
   # ip link add dev vm1 gso_max_size 65530 type veth peer name vm2

This should create vm1 <--> vm2 with both having GSO maximum
size set to 65530.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/veth.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -382,6 +382,9 @@ static int veth_newlink(struct net *src_
 	if (ifmp && (dev->ifindex != 0))
 		peer->ifindex = ifmp->ifi_index;
 
+	peer->gso_max_size = dev->gso_max_size;
+	peer->gso_max_segs = dev->gso_max_segs;
+
 	err = register_netdevice(peer);
 	put_net(net);
 	net = NULL;


Patches currently in stable-queue which might be from stephen@networkplumber.org are

queue-3.18/veth-set-peer-gso-values.patch