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Miller" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 59/63] veth: set peer GSO values Thread-Topic: [PATCH AUTOSEL for 3.18 59/63] veth: set peer GSO values Thread-Index: AQHTsz+yCdCajojKtk2zdlGCZHx0jA== Date: Sat, 3 Mar 2018 22:33:48 +0000 Message-ID: <20180303223228.27323-59-alexander.levin@microsoft.com> References: <20180303223228.27323-1-alexander.levin@microsoft.com> In-Reply-To: <20180303223228.27323-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MW2PR2101MB1018;6:Aewc6Z5mkxZLo89yIpviENPi/zdJGD/WNM4xXED/3UKkbgs01ynmfW6ggWBEq01+f9Fd9/ka0PDT2w/gHZNpn3DPIQrSBZbj0KSWy7f6m+RdqiFTlTUdQI+iHxAOHtN36brLJz1W/1Tb+LwkK1g7+7Zp37vh8rv94+YGL9tDjtD5xilrtOHcxUAciEVsZKC31AZuWraNqmGeCM7i28iMjmUPv+AFn12dyVbia2h1vs0TR5NL+g826l5sL7iNIpk+a1aX+YG+OxcHnnN9PS5LdHugmBzcXiSGTXQSSJmxPlVeXWZG8rI54U4fplUbzROpKSIuPQR+6fZfWOfT29xT9FPFx6dSm4m9+9KxLr0WpTv0rFeE8/5O9Zij8sRyqQik;5:/aXNMidUhlu6kDKOy8at+bqUzpB57prG+mlmqlrN1OTc2HEKvMGctTRa3VjvGVCVH4WhRo4TqTqclMXKVt5GLFYH90apMSuQQjnBxW20dOf5TtkMpheMYkZOMmmoNNDMLT36rahAscMyQHAGo+TmOR9IIhoIAWSNp//DIUdESoU=;24:HMA3Cslh7XsYh+M4jf8Q61H8YlZPSNnnp7NUJ4l1DzfMPFyA/mwv929tKc4jWouV8D0OY9CYLrAvanb6Jz+TZn67GqnE6LrcPOue3nRaC2I=;7:F5xa9oY/ULhBIn9MzXUoAzVXyNWVqIjj60LKIr8yr69gaiB5UwVpY1pjPxZoF/g2rf3lUM8zbNXnYXz74Ql0CpmfiiiG3lje/EF42uBYfo+aua68TEz/Mx7IuHOATy56LaQe3iN0HZGP/y9L/7LJwZemJNZO5NgyOpakDn8lFW8T3B1n4+s3FAvnqn2GuyAzswd3zryh7eyxYVT0niOHm5CtsMuc6J2yYOPfiuBV8gCdL3nDwBRHajiPJJzBz70n x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: f6be1e34-e682-4299-1f1f-08d58157fe98 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603307)(7193020);SRVR:MW2PR2101MB1018; x-ms-traffictypediagnostic: MW2PR2101MB1018: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040501)(2401047)(8121501046)(5005006)(93006095)(93001095)(10201501046)(3231220)(944501244)(52105095)(3002001)(6055026)(61426038)(61427038)(6041288)(20161123562045)(20161123558120)(20161123564045)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(6072148)(201708071742011);SRVR:MW2PR2101MB1018;BCL:0;PCL:0;RULEID:;SRVR:MW2PR2101MB1018; x-forefront-prvs: 0600F93FE1 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(396003)(376002)(39860400002)(39380400002)(366004)(346002)(199004)(189003)(26005)(25786009)(3280700002)(10290500003)(4326008)(107886003)(81156014)(5660300001)(8676002)(6512007)(2950100002)(305945005)(97736004)(186003)(54906003)(6436002)(7736002)(72206003)(76176011)(6506007)(106356001)(110136005)(86362001)(102836004)(6486002)(66066001)(36756003)(6116002)(3846002)(14454004)(6666003)(105586002)(99286004)(478600001)(1076002)(3660700001)(2906002)(10090500001)(86612001)(5250100002)(81166006)(6346003)(2900100001)(68736007)(2501003)(8936002)(316002)(53936002)(22452003)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:MW2PR2101MB1018;H:MW2PR2101MB1034.namprd21.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: Rq+l9QqDGIAZZJh0VavpAoWJied9+fadBU8ofqpZiF0qbma8gJYvh+kzxkzjxI4izItXr7KYHl6TUS3G5Nq5QQrW9UpUgZAQby3/0kUGDXdHI9loUd8jgdENkUl72PnfADvM12uQRdSFgraqpmu4Qi5jeBZpy2alzsAZLkI8lR4= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: f6be1e34-e682-4299-1f1f-08d58157fe98 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Mar 2018 22:33:48.2638 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR2101MB1018 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 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 --- drivers/net/veth.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 32ce1cd64d51..b6b322828549 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -382,6 +382,9 @@ static int veth_newlink(struct net *src_net, struct net= _device *dev, if (ifmp && (dev->ifindex !=3D 0)) peer->ifindex =3D ifmp->ifi_index; =20 + peer->gso_max_size =3D dev->gso_max_size; + peer->gso_max_segs =3D dev->gso_max_segs; + err =3D register_netdevice(peer); put_net(net); net =3D NULL; --=20 2.14.1