From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELsJW0MqISaMaa9tqwwFwRtNUWsg4AMkgBEm4SuiK5tn6/oHu5IFNSlwi/Qb93u5knesSEUq ARC-Seal: i=1; a=rsa-sha256; t=1521484012; cv=none; d=google.com; s=arc-20160816; b=lPYbXexdnKqed4mIP3Wm9vr2HKNM/NeTVx34SdJa73rj8S4jI7MaweAzDl8fBOpRPd 920D/yMTXnpWpI5LxOY1a7iYf0AUB114CjCeOJHKOfKj1+xIty4Ag5SbQCpHvh6hEHRI sQtOoR86eNy2cgU1Tac95bcLR5gcW2MKCaq+yEld8XNmKbOjnT5PestNbG0DJ0PJBh4P FFXaFah37uUs3Lske5kOQUWcOsy6F/Zg/bxq/YsPQu+GZOYh9hmvDKzjdCaDFAZhiude VayNE5xyirgxmaf25opeDhJV9Tg1WXxuOBkZ56rFM5+ZbwipwmmvfSftc38z9egfjZDm 1iKQ== 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=8oJA1H2ZhgbIL3zYuFeo9INkmFjPQbiUS3UlV5PpHwg=; b=RE/fW8ZtQWZujJ9LXMjqGQdFTFDD9gOYynmyCPXUe/KuFEj6fuSrAZjswATcK6gFYF kzaA7hobxrt8P+4K6vVa+/RvSQAQPWWtQHWh05zK7PpUsyVsUSYDf8N1rnvzUCnCVafP P9WtYXogfMxWwFVruFKvz3ucJPuQWHGza4J6lc+Fy8kOCDhoKCNtf6UUrgjillOaxbkf TjZZ0if4Ke+MSWiZM9ijm/h2u5S7b+2Y0YafbqaE4J9bzsMT6lZHlVF4ektKzr13Hx5W 7iKnGEvxBLWBcOtI2RMB+Ojh2W4OH7m/3MoFA9/WGSrMGtZO05JvxlxECKc31ryNoQa9 iWjw== 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 4.9 199/241] veth: set peer GSO values Date: Mon, 19 Mar 2018 19:07:44 +0100 Message-Id: <20180319180759.431582219@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180319180751.172155436@linuxfoundation.org> References: <20180319180751.172155436@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?1595391619410607098?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-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 @@ -425,6 +425,9 @@ 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;