From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtHpl6SeCBgC13XVjt5+ntTqSQa52bsUmnpm/DDYIHrXybz6cCffdXnpLr7cdCzuzu9CR4T ARC-Seal: i=1; a=rsa-sha256; t=1521214683; cv=none; d=google.com; s=arc-20160816; b=iyFvKjBqIr1G3IZnjVCJuJtuwo/vcpQICQ7qn78EhVeSwbVxi/xRjrhlrXdqR+cY3p AXA2kCaXshV0cP1U15pxDGlhVsBsQIY5AXdoko1B+AZbN0kFv+e57prOnns++Wd+tD9W zma4UTbhfh7S7DuXecLWBXqTXAW+10vJbENHY7lTSipo/6wtgt7jr/TI1zZF8/gMkZoX l8tCAQwkQHUpf2w+YBW6ItX0HBcbdnfJl8OPXpV8iQ0cICgZ2nJAenpWYRNyvQsrTFJQ L5FsLAlrLYN0hxmAW5i2UH6NfbqT/6GdWyNJ5ONmDi4Qoo/FoK0eFU2k4HDTinzbbPVW jpwg== 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=6zD5hMPmcWDWTKV7ke9bMDqQocD6T3tyc12pUFQw4GM=; b=m6eXZefEbwi+RXpR9tMVCKHUWcMGJk1XEDuiywvuGjha06NEbMTPKI5gbChRwq9Nt+ klVflIvmU+39CkWDJVLem1pf1BhCd4rcpU9JldkpxPnb2IMHViGLUMmHU//Y0dxHSssn 1efK5rJ5OQAn0GbJTi4Vxz3zgSRY0pnPJ0ZC8enQ0lLwy1XbmAEv9/EOxSGOSZRtIU5t tPtWk/0DZfOer4sqt3VwM+Iv4XmefYcbEqXLb55NlE2QtcER7o7gC7nYT0zu+g/2Y1QL ZwQwbmoQnu1zFudSs7EAmuW1vLwoYstfVdii1fphcQfBejKmPJVtoI6ELF/tw9n7pXIO eGCg== 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 4.14 091/109] veth: set peer GSO values Date: Fri, 16 Mar 2018 16:24:00 +0100 Message-Id: <20180316152334.862430052@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180316152329.844663293@linuxfoundation.org> References: <20180316152329.844663293@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?1595109208388318849?= X-GMAIL-MSGID: =?utf-8?q?1595109208388318849?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-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;