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[23.128.96.18]) by mx.google.com with ESMTP id g19si11790729edu.127.2021.04.07.02.57.56; Wed, 07 Apr 2021 02:58:21 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@cisco.com header.s=iport header.b=B65QOGPW; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=cisco.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346428AbhDFQaF (ORCPT + 99 others); Tue, 6 Apr 2021 12:30:05 -0400 Received: from rcdn-iport-7.cisco.com ([173.37.86.78]:60372 "EHLO rcdn-iport-7.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346426AbhDFQaC (ORCPT ); Tue, 6 Apr 2021 12:30:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3941; q=dns/txt; s=iport; t=1617726594; x=1618936194; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=wtAeIc7XsQsptor4RXWPj9Y8j7ZxS+JmY38g2U87X54=; b=B65QOGPWwAX19xQm1YN0GX1QtqO9yKCfWGX8BcF76Qo0ASrcgPt1UFmk hNlgOlgqW2IxQmF3OcNcY7Z9r+CuEXSEbqnNe/CrzLmmTvRtMinXlgN2n L0z5Nak+qOVSesDpz4YQhdDj5AgeyHovb6P+iUXH0iunnVpRLAoepdIaj s=; IronPort-HdrOrdr: =?us-ascii?q?A9a23=3A8kZ/JKy/HEtUs8XFn+v/KrPxd+skLtp033?= =?us-ascii?q?Aq2lEZdDV+eKWj+PyGtvIdyBPylXI9WGs4n8qBJamHRhrnhPtIyKMWOqqvWx?= =?us-ascii?q?SjhXuwIOhZnOnf6hDpBiGWzIRg/Ih6dawWMrDNJHh8yf33+QypV+snqeP3lJ?= =?us-ascii?q?yAocf74zNTQRpxa6dmhj0JaTqzNkFtXgFJCd4YOfOnh/ZvnDardXQJYsnTPB?= =?us-ascii?q?BsNNTrnNHFmInrZhQLHXcciDWmty+i67LxDnGjsCs2bjUn+9sf2FmAuxDl4O?= =?us-ascii?q?GZv+ujzBjH2yvo841Og9f60LJ4dauxo/lQDCnwgQC1Y4kkfLuOsFkO0ZiSwW?= =?us-ascii?q?dvtsXQqBE9OMk20VftRyWepBvg3BSI6kdJ10Pf?= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0AHAAD2i2xg/4UNJK1aGQEBAQEBAQE?= =?us-ascii?q?BAQEBAQEBAQEBARIBAQEBAQEBAQEBAQFAgT4EAQEBAQELAYIqgU0BOTGMZok?= =?us-ascii?q?vA5AMFopGFIFoCwEBAQ0BATQEAQGEUAKBdgIlNAkOAgMBAQwBAQUBAQECAQY?= =?us-ascii?q?EcROFXYZEAQEBAwE6PxALEgYVGTwNDgYThVghq011gTSBAYgdgUQUDoEXAY1?= =?us-ascii?q?MJxyBSUKENT6DeYEGhRYiBIFlWwaBEBs/Vi8lWBQCLZEGgkGKW5sVgRSDFYE?= =?us-ascii?q?mm0cyEIM9iniWLLg+AgQGBQIWgVQ6gVkzGggbFYMkUBkOjisWjkchAy84AgY?= =?us-ascii?q?KAQEDCY1EAQE?= X-IronPort-AV: E=Sophos;i="5.82,310,1613433600"; d="scan'208";a="867307959" Received: from alln-core-11.cisco.com ([173.36.13.133]) by rcdn-iport-7.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 06 Apr 2021 16:29:52 +0000 Received: from zorba ([10.24.14.212]) by alln-core-11.cisco.com (8.15.2/8.15.2) with ESMTPS id 136GTgP5005585 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 6 Apr 2021 16:29:44 GMT Date: Tue, 6 Apr 2021 09:29:42 -0700 From: Daniel Walker To: Rob Herring Cc: Christophe Leroy , Will Deacon , Daniel Gimpelevich , Andrew Morton , X86 ML , "open list:MIPS" , linuxppc-dev , xe-linux-external@cisco.com, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v2 3/7] powerpc: convert config files to generic cmdline Message-ID: <20210406162942.GR2469518@zorba> References: <20210309212944.GR109100@zorba> <20fd7d44-8c39-48bc-25c3-990be9d9d911@csgroup.eu> <20210325195956.GM109100@zorba> <20210330173254.GS109100@zorba> <20210330233137.GB2469518@zorba> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-SMTP-Client: 10.24.14.212, [10.24.14.212] X-Outbound-Node: alln-core-11.cisco.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 01, 2021 at 03:08:04PM -0500, Rob Herring wrote: > On Tue, Mar 30, 2021 at 6:31 PM Daniel Walker wrote: > > > > On Tue, Mar 30, 2021 at 03:13:04PM -0500, Rob Herring wrote: > > > On Tue, Mar 30, 2021 at 12:33 PM Daniel Walker wrote: > > > > > > > > On Thu, Mar 25, 2021 at 05:29:44PM -0600, Rob Herring wrote: > > > > > On Thu, Mar 25, 2021 at 2:00 PM Daniel Walker wrote: > > > > > > > > > > > > On Thu, Mar 25, 2021 at 01:03:55PM +0100, Christophe Leroy wrote: > > > > > > > > > > > > > > Ok, so you agree we don't need to provide two CMDLINE, one to be appended and one to be prepended. > > > > > > > > > > > > > > Let's only provide once CMDLINE as of today, and ask the user to select > > > > > > > whether he wants it appended or prepended or replacee. Then no need to > > > > > > > change all existing config to rename CONFIG_CMDLINE into either of the new > > > > > > > ones. > > > > > > > > > > > > > > That's the main difference between my series and Daniel's series. So I'll > > > > > > > finish taking Will's comment into account and we'll send out a v3 soon. > > > > > > > > > > > > It doesn't solve the needs of Cisco, I've stated many times your changes have > > > > > > little value. Please stop submitting them. > > > > > > > > > > Can you please outline what those needs are which aren't met? > > > > > > > > append AND prepend at the same time on all architectures. Christophe doesn't > > > > understand the need, and hence tries to minimize the feature set which is > > > > incompatible with Cisco needs and all the other out of tree users. > > > > > > Okay, but that's never been a feature in upstream. For upstream, we > > > refactor first and add features 2nd. In this case, the difference is > > > largely the kconfig and it would be better to not change the options > > > twice, but that's not a blocker for taking the refactoring. You won't > > > find a maintainer that's going to take adding a feature over cleanups > > > and unification. > > > > It kind of is a feature in upstream, it's a matter of opinion. Some platform > > used append and some use prepend, and it's likely because the maintainers needed > > one or the other for development. > > Which arch/platform upstream does both prepend and append at the same time? None do it at the same time, however x86 and mips have switched between the two. > > I'm not sure why you think I can't add the features in one go. It would be > > horrid to take Christophe's changes, then have to do basically all the same work > > a second time which is what Christophe's changes would force me to do. > > I didn't say it couldn't be done. In fact, I said it would be better > all at once: "it would be better to not change the options twice" > > But both of you ignoring comments and continuing to post competing > series is not going to get us there. TBC, I think Christophe's series > is much closer to being in shape to merge upstream. I'm not the one ignoring comments .. I've taken a number of comments from Christophe, but he still submits his own series.. Christophe series doesn't look good to me.. I suspect you like it cause it deletes lines from of. > > Say for example I implement this change only on one architecture. In that case > > the maintainer would be accepting a feature enhancement , but there would be no > > stopping it. I shouldn't have to go two strokes on one architecture, but each > > change I'm making is essentially a single architecture. They can go in all > > together or one at a time. > > Features do get implemented all the time on one arch. And then maybe a > 2nd and 3rd. At some point we decide no more copying, it needs to be > common and refactored. We're at that point for cmdline handling IMO. I don't think it can be done with one series all at once .. Daniel