From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [patch net-next 1/3] mlxsw: spectrum: Reduce number of supported 802.1D bridges Date: Wed, 18 May 2016 20:50:40 -0700 (PDT) Message-ID: <20160518.205040.715594342450511871.davem@davemloft.net> References: <1459844404-4698-1-git-send-email-jiri@resnulli.us> <1459844404-4698-2-git-send-email-jiri@resnulli.us> <20160518124050.GA3889@nanopsycho.orion> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, idosch@mellanox.com, eladr@mellanox.com, yotamg@mellanox.com, ogerlitz@mellanox.com, roopa@cumulusnetworks.com, gospo@cumulusnetworks.com, corbet@lwn.net, sfeldma@gmail.com, nicolas.dichtel@6wind.com, vivien.didelot@savoirfairelinux.com To: jiri@resnulli.us Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:34322 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751667AbcESDum (ORCPT ); Wed, 18 May 2016 23:50:42 -0400 In-Reply-To: <20160518124050.GA3889@nanopsycho.orion> Sender: netdev-owner@vger.kernel.org List-ID: From: Jiri Pirko Date: Wed, 18 May 2016 14:40:50 +0200 > This patch, commit b555cf4a50c17a9714715a2d7c8574dca1a7b356 ("mlxsw: spectrum: > Reduce number of supported 802.1D bridges") reduced the resources the > device allocates during init. Newer firmware versions now force a hard > limit on these resources and thus require this patch. > > We would like to ask this commit be backported to stable kernels, so > that they can be used with newer firmware versions. Breaking existing working drivers with a firmware update is a terrible user experience, and in my opinion not a reason to do a -stable backport. Fix how you manage this stuff instead. This new behavior should be requested by drivers that can handle it, rather than retroactively forced upon existing setups.