Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45870 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965364AbeCPPoO (ORCPT ); Fri, 16 Mar 2018 11:44:14 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stephen Hemminger , "David S. Miller" , Sasha Levin Subject: [PATCH 4.15 110/128] veth: set peer GSO values Date: Fri, 16 Mar 2018 16:24:11 +0100 Message-Id: <20180316152342.021185245@linuxfoundation.org> In-Reply-To: <20180316152336.199007505@linuxfoundation.org> References: <20180316152336.199007505@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stephen Hemminger [ 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/veth.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -410,6 +410,9 @@ 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;