From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C633C43441 for ; Mon, 26 Nov 2018 11:33:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0499720862 for ; Mon, 26 Nov 2018 11:33:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=sirena.org.uk header.i=@sirena.org.uk header.b="WOubOMcz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0499720862 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726437AbeKZW1f (ORCPT ); Mon, 26 Nov 2018 17:27:35 -0500 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:57990 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726241AbeKZW1e (ORCPT ); Mon, 26 Nov 2018 17:27:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=dmxFwWPnMDckwt7Sd7UAoK+mhkXQF11jqeAqZMv03sA=; b=WOubOMczU3ZweTWam+9J7o3rL +3blhPJwJRkrQxcE6jvpp5y5MiYR5yh4DmkTa0cs4CtUjJwrfJ7PfbjUsPMyCGu1KtfFb89I4ilmT 0K4E6vZeOECZtY4x/ncf2axPYOuBKO/NzsHlXmMSIxRjmVQ+/jUGkf6FzM80unNwy02Ig=; Received: from cpc102320-sgyl38-2-0-cust46.18-2.cable.virginm.net ([82.37.168.47] helo=debutante.sirena.org.uk) by heliosphere.sirena.org.uk with esmtpa (Exim 4.89) (envelope-from ) id 1gRF8t-0003i5-26; Mon, 26 Nov 2018 11:33:31 +0000 Received: by debutante.sirena.org.uk (Postfix, from userid 1000) id B74EB112519F; Mon, 26 Nov 2018 11:33:30 +0000 (GMT) Date: Mon, 26 Nov 2018 11:33:30 +0000 From: Mark Brown To: Juri Lelli Cc: Daniel Lezcano , Sudeep Holla , rjw@rjwysocki.net, vincent.guittot@linaro.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , "Rafael J. Wysocki" , Kate Stewart , Thomas Gleixner , "Peter Zijlstra (Intel)" Subject: Re: [PATCH 2/4] base/drivers/arch_topology: Replace mutex with READ_ONCE / WRITE_ONCE Message-ID: <20181126113330.GB4871@sirena.org.uk> References: <1540830201-2947-1-git-send-email-daniel.lezcano@linaro.org> <1540830201-2947-2-git-send-email-daniel.lezcano@linaro.org> <20181123135807.GA14964@e107155-lin> <9cea4556-15f8-9377-305a-b629ba7e811f@linaro.org> <20181123162040.GB27793@e107155-lin> <1e013fee-e218-c489-9cd6-a384950d304f@linaro.org> <20181126082702.GA18469@localhost.localdomain> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ADZbWkCsHQ7r3kzd" Content-Disposition: inline In-Reply-To: <20181126082702.GA18469@localhost.localdomain> X-Cookie: In the next world, you're on your own. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --ADZbWkCsHQ7r3kzd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Nov 26, 2018 at 09:27:02AM +0100, Juri Lelli wrote: > is highly debatable). I also seem to remember that there might also be > cases where DT values cannot be changed at all for a (new?) platform > that happens to be using DTs shipped with an old revision; something > along these lines was mentioned (by Mark?) during the review process, > but exact details escape my mind ATM, apologies. Yeah, DTs might be in firmware which is either non-updatable or which people are reluctant to update due to it not being recoverable if the update goes wrong. --ADZbWkCsHQ7r3kzd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlv72gkACgkQJNaLcl1U h9CGYgf8Dh/pE712kwWEa17wo5LqzkNIBLtGbfDovc2+UPFjYEGf527IZOJFf6I+ iawerRZGUtTVhTB20rtqVIkjSChjMidwcGl+ThYtw3EPJYZD3natG5mxPkrxk5Kn U6o4qnnrNbUmuUJnlKRWxo1fGGC1Anl6/3Vaz/LuCNKZazAffJN5femDd1e229/t iuu9ozJ+EAQsF3P59q6toiTJzrVkGeRBSxFY5PLDnp5ReJ++IdNvJfj7gGYJwOUr D+6EyufzNeKwBI3yMNROAieIXHETPOULXbBuSTaLUAOG5vxwd4u1Lb8hk8G+Z278 WC183uYC61XBkQSuX4VYyYpP4ezRKQ== =TT65 -----END PGP SIGNATURE----- --ADZbWkCsHQ7r3kzd--