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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 132E5C432BE for ; Tue, 24 Aug 2021 09:52:40 +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 C8C2C6101C for ; Tue, 24 Aug 2021 09:52:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C8C2C6101C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.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 23A48898B7; Tue, 24 Aug 2021 09:52:39 +0000 (UTC) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id CE94D898B7; Tue, 24 Aug 2021 09:52:37 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10085"; a="302859410" X-IronPort-AV: E=Sophos;i="5.84,346,1620716400"; d="scan'208";a="302859410" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2021 02:52:37 -0700 X-IronPort-AV: E=Sophos;i="5.84,346,1620716400"; d="scan'208";a="526567561" Received: from kmulhall-mobl2.ger.corp.intel.com (HELO localhost) ([10.252.39.114]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2021 02:52:34 -0700 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: References: <20210813171158.2665823-1-nathan@kernel.org> Cc: John Harrison , Matthew Brost , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, kernel-janitors@vger.kernel.org, Dan Carpenter To: Jani Nikula , Nathan Chancellor , Rodrigo Vivi From: Joonas Lahtinen Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Message-ID: <162979875184.5663.3119766810404831323@jlahtine-mobl.ger.corp.intel.com> User-Agent: alot/0.8.1 Date: Tue, 24 Aug 2021 12:52:31 +0300 Subject: Re: [Intel-gfx] [PATCH] drm/i915/selftest: Fix use of err in igt_reset_{fail, nop}_engine() 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" Quoting Nathan Chancellor (2021-08-23 22:08:37) > Ping? This is a pretty clear bug and it is not fixed in -next or > drm-intel at this point. Pushed to drm-intel-gt-next with my R-b. Regards, Joonas > On Fri, Aug 13, 2021 at 10:11:58AM -0700, Nathan Chancellor wrote: > > Clang warns: > >=20 > > In file included from drivers/gpu/drm/i915/gt/intel_reset.c:1514: > > drivers/gpu/drm/i915/gt/selftest_hangcheck.c:465:62: warning: variable > > 'err' is uninitialized when used here [-Wuninitialized] > > pr_err("[%s] Create context failed: %d!\n", engine->name, err); > > ^~~ > > ... > > drivers/gpu/drm/i915/gt/selftest_hangcheck.c:580:62: warning: variable > > 'err' is uninitialized when used here [-Wuninitialized] > > pr_err("[%s] Create context failed: %d!\n", engine->name, err); > > ^~~ > > ... > > 2 warnings generated. > >=20 > > This appears to be a copy and paste issue. Use ce directly using the %pe > > specifier to pretty print the error code so that err is not used > > uninitialized in these functions. > >=20 > > Fixes: 3a7b72665ea5 ("drm/i915/selftest: Bump selftest timeouts for han= gcheck") > > Reported-by: Dan Carpenter > > Signed-off-by: Nathan Chancellor > > --- > > drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > >=20 > > diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu= /drm/i915/gt/selftest_hangcheck.c > > index 08f011f893b2..2c1ed32ca5ac 100644 > > --- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c > > +++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c > > @@ -462,7 +462,7 @@ static int igt_reset_nop_engine(void *arg) > > =20 > > ce =3D intel_context_create(engine); > > if (IS_ERR(ce)) { > > - pr_err("[%s] Create context failed: %d!\n", engin= e->name, err); > > + pr_err("[%s] Create context failed: %pe!\n", engi= ne->name, ce); > > return PTR_ERR(ce); > > } > > =20 > > @@ -577,7 +577,7 @@ static int igt_reset_fail_engine(void *arg) > > =20 > > ce =3D intel_context_create(engine); > > if (IS_ERR(ce)) { > > - pr_err("[%s] Create context failed: %d!\n", engin= e->name, err); > > + pr_err("[%s] Create context failed: %pe!\n", engi= ne->name, ce); > > return PTR_ERR(ce); > > } > > =20 > >=20 > > base-commit: 927dfdd09d8c03ba100ed0c8c3915f8e1d1f5556 > > --=20 > > 2.33.0.rc2