From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Holler Subject: Re: [RFC PATCH 0/9] dt: dependencies (for deterministic driver initialization order based on the DT) Date: Fri, 22 Aug 2014 17:45:01 +0200 Message-ID: <53F7657D.2060304@ahsoftware.de> References: <1399913280-6915-1-git-send-email-holler@ahsoftware.de> <20140514141914.446F7C4153D@trevor.secretlab.ca> <20140821140211.GD19293@ulmo.nvidia.com> <53F64624.5000403@ahsoftware.de> <20140822131919.GX21734@leverpostej> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140822131919.GX21734@leverpostej> Sender: linux-kernel-owner@vger.kernel.org To: Mark Rutland Cc: Thierry Reding , "grant.likely@linaro.org" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , Jon Loeliger , Russell King , Greg Kroah-Hartman , Rob Herring , Arnd Bergmann , "linux-arm-kernel@lists.infradead.org" List-Id: devicetree@vger.kernel.org Am 22.08.2014 15:19, schrieb Mark Rutland: > On Thu, Aug 21, 2014 at 08:19:00PM +0100, Alexander Holler wrote: >> Am 21.08.2014 16:02, schrieb Thierry Reding: >> >>> Anyway, those are all fairly standard reasons for where deferred probe >>> triggers, and since I do like deferred probe for it's simplicity and >>> reliability I'd rather not try to work around it if boot time is all >>> that people are concerned about. >> >> It's neither simple nor reliable. It's non deterministic brutforcing >> while making it almost impossible to identify real errors. > > It's horrible, yes. > >> In my humble opinion the worst way to solve something. I'm pretty sure >> if I would have suggest such a solution, the maintainer crowd would have >> eaten me without cooking. > > We didn't have a better workable solution at the time. Having a hack > that got boards booting was considered better than not having them boot. > I don't remember people being particularly enthralled by the idea. Agreed. And usually I don't flame about workarounds. They are needed practice usually born out of a time limited background or similiar constraints. Only Linux kernel maintainers do demand perfect stuff from others as the kernel seems to have to be a perfect school project. I for myself already think checkpatch is a ridiculous tool, only invented to drive people crazy. Of course, it's better a tool drives people crazy than a maintainer who make decisions based on the phase of the moon, but ... ;) And I haven't flamed much about deferred probe before, but if I read it's simple and reliable I couldn't stand still. Sorry, Alexander Holler