From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarod Wilson Subject: Re: [PATCH] batman-adv: Revert "use core MTU range checking in misc drivers" Date: Sun, 23 Oct 2016 21:48:23 -0400 Message-ID: <20161024014823.GA42084@redhat.com> References: <20161022074624.30033-1-sven@narfation.org> <20161023010826.GD32569@redhat.com> <2358358.cV5hCSMD7y@sven-edge> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, davem@davemloft.net, b.a.t.m.a.n@lists.open-mesh.org, linux-kernel@vger.kernel.org To: Sven Eckelmann Return-path: Content-Disposition: inline In-Reply-To: <2358358.cV5hCSMD7y@sven-edge> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sun, Oct 23, 2016 at 09:17:50AM +0200, Sven Eckelmann wrote: > On Samstag, 22. Oktober 2016 21:08:26 CEST Jarod Wilson wrote: > [...] > > You're going to > > need more than just this revert though, since batman-adv calls > > ether_setup, which will set min_mtu = 68, max_mtu = 1500, unless > > batadv_hardif_min_mtu() always returns something 1500 or less. > > It does only returns 1500 or less at the moment. > > return min_t(int, min_mtu - batadv_max_header_len(), ETH_DATA_LEN); > > > Actually, > > looking at that, you could omit the mtu < 68 bit from > > batadv_interface_change_mtu() too, since that'll already get done in the > > core, but I have no clue what you need for max_mtu. > > I would like to get this revert through net-next.git before anything else. Looks like that should work fine then. -- Jarod Wilson jarod@redhat.com