From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH next] ipvlan: inherit MTU from master device Date: Thu, 04 Feb 2016 19:22:21 -0500 (EST) Message-ID: <20160204.192221.2162532613179382427.davem@davemloft.net> References: <1453966408-16343-1-git-send-email-mahesh@bandewar.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: maheshb@google.com, edumazet@google.com, thockin@google.com, netdev@vger.kernel.org, eric.dumazet@gmail.com, thockins@google.com To: mahesh@bandewar.net Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:33544 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753953AbcBEAW3 (ORCPT ); Thu, 4 Feb 2016 19:22:29 -0500 In-Reply-To: <1453966408-16343-1-git-send-email-mahesh@bandewar.net> Sender: netdev-owner@vger.kernel.org List-ID: From: Mahesh Bandewar Date: Wed, 27 Jan 2016 23:33:28 -0800 > From: Mahesh Bandewar > > When we create IPvlan slave; we use ether_setup() and that > sets up default MTU to 1500 while the master device may have > lower / different MTU. Any subsequent changes to the masters' > MTU are reflected into the slaves' MTU setting. However if those > don't happen (most likely scenario), the slaves' MTU stays at > 1500 which could be bad. > > This change adds code to inherit MTU from the master device > instead of using the default value during the link initialization > phase. > > Signed-off-by: Mahesh Bandewar Applied, thanks.