From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvMsRtB+9DX0WUdcyvVqBOgi63EmMFMKFcJlpbzNPhgTvulpoy0TAw/JH1VrbqWTwIrcxzo ARC-Seal: i=1; a=rsa-sha256; t=1521483379; cv=none; d=google.com; s=arc-20160816; b=A4sdhWNBd/bIuiFQSaR+amc6NTKjk1xyuGX0vxlI/1dKD1l5MXuLHSJ/5KnNoTF9nu rkmZVkrwZfd/4eY8QvsCwpzWA1J8yRQK7eml9Bd67tCrIzCEh5O7cEBlhmQ4W7ZwwHGe Hq0v9GxZmIQc+ks4gVz/mw68ppvmubSM4lLTi4U3tCQZ8/LeQx5HISKbxFXcg0sy8/CK OfEDePMxHavIpSK2zz+w+AIIWBDdyPodqwUMJZvuKZTcvoFdkcM+imNCJ3YLIPCvaC8P +/ngSuS1ciD8TviCtNapt93VBq85DtKSlJZWACp+aLRBp1uCH5i5VRsp2RK3ZkrqoabW 6wDw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=O21O4p3mT3YWmYYagH80rk1Z+pdTLsGGteCPgF9I3F8=; b=sRM4+rGLciIeY4XipDtsHjfS3IfMoYmameT1BUE1kw9MQ6w//pZ3Wgpn+lo2LvltyN 1sYsBhTt8qvwL2yNmr57fzFzfeU8EEsrrp7X5AT0Hty4QonW25fJTAHCr7QGdUIcTamU JAEPP9liZkwV3xXBDp2jps5oPd6t/u0KN1MiF3Oh+quY4p2Xno+fjAny8b39bLNJdBOA tYLbiIQzHz37WznTuVqmWahyiOMD5VrPxSZ7onwZx7IB4kU42JpYWG6XYjqBnHjt9Ipe fp5FxPe8IfWEHdC6FdbxMNPJcUch3KKU/2UP14W7+8aHbZVXy7SAIcTrHgBacNefU/0C kEgQ== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org 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 4.4 101/134] veth: set peer GSO values Date: Mon, 19 Mar 2018 19:06:24 +0100 Message-Id: <20180319171903.826889201@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180319171849.024066323@linuxfoundation.org> References: <20180319171849.024066323@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1595390628799057705?= X-GMAIL-MSGID: =?utf-8?q?1595390956426594653?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.4-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 @@ -399,6 +399,9 @@ 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;