From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtrBLBhPFylF33GyKFzPYCCqb+N+pQ1x7RdXzI1DNNomFLgeLO/AoyV7O92DSp+iI1apAeF ARC-Seal: i=1; a=rsa-sha256; t=1521483067; cv=none; d=google.com; s=arc-20160816; b=rkk0FVf4oaAKpZ7O9GT/Z7wW7xlMCAue1kBJOGH0CniEyed12N1fmivceCTM4TQ76T hmM1aKzNjlv/O6I/oHEYPr4vOSt0jGv8/0jufe6ccmpyUrFw1UzzNHNqJ2dxZoU2YJbD dSJeX3rtdcSzGnFjNhAP56xjz/U6D8hFHQmjMpFCB3EIMOWW+5dtaQl8ujHjxiJQLLJ8 igNBpR9myhWJ4ifBWM8UwO1LgHcOr9GA2Ajhf5En0dQIMViUEvlD9bUhDch/gh6SbULL +fiAwRXGayuXWlkfubxzYlpqh6bGDJK2ENaZNMzQSTwj/jQ+RkLYQPiW7yoMqmVZp5jy 3dig== 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=Lm8v4JKFaP39l9nwZmRYveX2dCR3VX/K9KEmHUq4fxI=; b=xh+yqPp7tEQw0XyRtNcKEcNcXixvd8KAcKaUBq2vfkw0PajPmBgQiJ+UBal2C5pH9D cuDX0LHfV/wLifQHffcDmCEadvoi8+0Tur4erZeLEA1dByHy37CKmNZY0TIA1KLRazuw P5SO5idAOZv4xdllu2BApiuqBs8pcXMEFR8+ySzo0PygonjclhKBNf0mDTY+d+pwDGLA XOhDjWFlFXVVwdwr9OTq3Zx73SKF5qES2PQKOajaom5ei0UHhznlA47eVMG7R9h0FZua aquatvoqLclVh8by1FCkh7JP513qGy1VhU7BRIk20KFP2S+GFvQzHKAEOhf9inr6z6y3 bwZQ== 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 3.18 55/68] veth: set peer GSO values Date: Mon, 19 Mar 2018 19:06:33 +0100 Message-Id: <20180319171835.597351843@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180319171827.899658615@linuxfoundation.org> References: <20180319171827.899658615@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?1595390628799057705?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.18-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 @@ -382,6 +382,9 @@ 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;