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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 65943C433DF for ; Wed, 24 Jun 2020 14:11:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C4DC20781 for ; Wed, 24 Jun 2020 14:11:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593007904; bh=dZNin8SmpQq7p18Ft1Jea35GMdNCC7HEuuzLiyxrh8Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=R+5BbXLw9CROpXEQGjP9nc6eT9n210YQNm1ainqLWNp/wTYJPfrnxl7Sn9d90/1UA vxbuPE3nVCrfQgkMP3zqQQ7UL+4YBz342Qg/qjyF5O67aKl6/xvas9Wgb16yXesSkJ 0K8xrrwqaWXcMNr1llCTuBcMr/1KpYxRqqTLHjPM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391165AbgFXOLn (ORCPT ); Wed, 24 Jun 2020 10:11:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:47790 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388395AbgFXOLm (ORCPT ); Wed, 24 Jun 2020 10:11:42 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A54DE2076E; Wed, 24 Jun 2020 14:11:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593007902; bh=dZNin8SmpQq7p18Ft1Jea35GMdNCC7HEuuzLiyxrh8Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fJWXKwa+oiCswSJrlk0nUsRRcjJZTvJbk1QUt2J19HQvSy75D3MM8h43yhNwhFks+ RIIlbLOH6u0VB+IZN5vCizuHwbxa9qK+DYorhJgtXwA3RjuB9v8fCFEozXI2fzF+Lo v2Mm7zxAjso+NP/P8KcDJ6PRqpvyjUOHLo7BsDL0= Date: Wed, 24 Jun 2020 15:11:39 +0100 From: Mark Brown To: Andrzej Hajda Cc: Jernej Skrabec , "Rafael J. Wysocki" , Greg Kroah-Hartman , Bartlomiej Zolnierkiewicz , linux-kernel@vger.kernel.org, "open list:DRM DRIVERS" , Russell King - ARM Linux , Neil Armstrong , Jonas Karlman , andy.shevchenko@gmail.com, Laurent Pinchart , linux-arm-kernel@lists.infradead.org, Marek Szyprowski Subject: Re: [RESEND PATCH v5 4/5] drm/bridge/sii8620: fix resource acquisition error handling Message-ID: <20200624141139.GF5472@sirena.org.uk> References: <20200624114127.3016-1-a.hajda@samsung.com> <20200624114127.3016-5-a.hajda@samsung.com> <20200624132532.GC5472@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="27ZtN5FSuKKSZcBU" Content-Disposition: inline In-Reply-To: X-Cookie: So this is it. We're going to die. 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 --27ZtN5FSuKKSZcBU Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 24, 2020 at 03:43:10PM +0200, Andrzej Hajda wrote: >=20 > On 24.06.2020 15:25, Mark Brown wrote: > > If we silently ignore all deferred probe errors we make it hard for > > anyone who is experiencing issues with deferred probe to figure out what > > they're missing. We should at least be logging problems at debug level > > so there's something for people to go on without having to hack the > > kernel source. > But you can always do: > cat /sys/kernel/debug/devices_deferred > And you will find there deferred probe reason (thanks to patch 2/5). Right, my point is more that we shouldn't be promoting discarding the diagnostics entirely but rather saying that we want to redirect those somewhere else. > Eventually if you want it in dmesg anyway, one can adjust probe_err funct= ion > to log probe error on debug level as well. That would most likely be very useful as a boot option for problems that occur before we get a console up. --27ZtN5FSuKKSZcBU Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl7zXxsACgkQJNaLcl1U h9C/2wf/YBbKSbShg3LyXqrQ3TXwZGSL43JPPExpduhQPiAEn9LJIa1bgE640xzI 0v5GUg3chRw9YilP9SA5RZ9ODZNo1fw9TwXaIhTVJgbeqc8PVadTm96IOEJj9Tgg VSxnkPB4Az6RoG1462+Aov9q7/CaAfRmedwIECmapT16oJx+yh1cwzEkxez8koQM QyQHrYH4IrDb8W160DbdiDuW2hYQia+4BybDU5MJ6B85QmAq++aqb77ocgfL2mIs GYbKKyBTaPKw8VukABV8X5ZEBOM6xh5yGRJ8KIQmBQQi8cCM6HdEq0eOvwe30FaX nVihsz6PcEAZZwx/wBTXKxgmzZv3hQ== =iEvE -----END PGP SIGNATURE----- --27ZtN5FSuKKSZcBU--