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=-22.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 AB68DC4338F for ; Wed, 18 Aug 2021 15:11:23 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 657BB60FDA for ; Wed, 18 Aug 2021 15:11:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 657BB60FDA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EC01E6E90F; Wed, 18 Aug 2021 15:11:22 +0000 (UTC) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id C9E956E90F; Wed, 18 Aug 2021 15:11:21 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10080"; a="277367340" X-IronPort-AV: E=Sophos;i="5.84,330,1620716400"; d="scan'208";a="277367340" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2021 08:11:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,330,1620716400"; d="scan'208";a="678604955" Received: from irvmail001.ir.intel.com ([10.43.11.63]) by fmsmga006.fm.intel.com with ESMTP; 18 Aug 2021 08:11:19 -0700 Received: from [10.249.134.4] (mwajdecz-MOBL.ger.corp.intel.com [10.249.134.4]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 17IFBIRk029713; Wed, 18 Aug 2021 16:11:18 +0100 To: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org References: <20210701155513.2024-1-michal.wajdeczko@intel.com> <20210701155513.2024-3-michal.wajdeczko@intel.com> From: Michal Wajdeczko Message-ID: <7bdb20cf-550f-9c65-5c9b-60cc87de33b2@intel.com> Date: Wed, 18 Aug 2021 17:11:17 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Intel-gfx] [PATCH 2/4] drm/i915/guc: Print error name on CTB (de)registration failure X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On 18.08.2021 16:20, Daniel Vetter wrote: > On Thu, Jul 01, 2021 at 05:55:11PM +0200, Michal Wajdeczko wrote: >> Instead of plain error value (%d) print more user friendly error >> name (%pe). >> >> Signed-off-by: Michal Wajdeczko >> --- >> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 8 ++++---- >> 1 file changed, 4 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c >> index a26bb55c0898..18d52c39f0c2 100644 >> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c >> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c >> @@ -167,8 +167,8 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 type, >> err = guc_action_register_ct_buffer(ct_to_guc(ct), type, >> desc_addr, buff_addr, size); >> if (unlikely(err)) >> - CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n", >> - guc_ct_buffer_type_to_str(type), err); >> + CT_ERROR(ct, "Failed to register %s buffer (%pe)\n", >> + guc_ct_buffer_type_to_str(type), ERR_PTR(err)); > > errname() is what you want here, not this convoluted jumping through hoops > to fake an error pointer. nope, I was already trying that shortcut, but errname() is not exported so we fail with ERROR: modpost: "errname" [drivers/gpu/drm/i915/i915.ko] undefined! so unless we add that export we must follow initial approach [1] -Michal [1] https://cgit.freedesktop.org/drm/drm-tip/commit/?id=57f5677e535ba24b8926a7125be2ef8d7f09323c > > With that: Reviewed-by: Daniel Vetter >> return err; >> } >> >> @@ -195,8 +195,8 @@ static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type) >> int err = guc_action_deregister_ct_buffer(ct_to_guc(ct), type); >> >> if (unlikely(err)) >> - CT_ERROR(ct, "Failed to deregister %s buffer (err=%d)\n", >> - guc_ct_buffer_type_to_str(type), err); >> + CT_ERROR(ct, "Failed to deregister %s buffer (%pe)\n", >> + guc_ct_buffer_type_to_str(type), ERR_PTR(err)); >> return err; >> } >> >> -- >> 2.25.1 >> >> _______________________________________________ >> Intel-gfx mailing list >> Intel-gfx@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/intel-gfx >