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=-16.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 0414AC4338F for ; Mon, 23 Aug 2021 19:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE372613D0 for ; Mon, 23 Aug 2021 19:08:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231516AbhHWTJZ (ORCPT ); Mon, 23 Aug 2021 15:09:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:46594 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230192AbhHWTJY (ORCPT ); Mon, 23 Aug 2021 15:09:24 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F3728613CF; Mon, 23 Aug 2021 19:08:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629745721; bh=PLG7FBxLuX3/LDs1ORyJPnau1dlijqlSmrYO3kxYDQY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=UZBMhhNaNnCs4NE6zyqjsZZQxflcfOT+aeFIwthe59yd++NKXgNiiDUNewOphuTcl FRpHqiSUWD3fCHobPQPxMuCt8YX5UyPw1HkOInJbUZ7jQwoWOMB1eEKdzo3LR3PqPU 6Zi6xRwAO3tMbQAMGtJFo+wnAisYpNOtZbMkBcZNFCRD1eEpLwxGq71kYRvwRd/jAp POWEVkB21/X2AqkjLwAdpJPNZ/6bJh9lrE6kowljzhbZfkN0GuSxv6VV3FY51zV7uc 6e6nGlj10YjA06DZ8O4S360qjcLgVoReT8FKoUGwz9SSiTk1CgjHF2A6zVKZUGhXCi pslslOiTjA18A== Date: Mon, 23 Aug 2021 12:08:37 -0700 From: Nathan Chancellor To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi 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 Subject: Re: [Intel-gfx] [PATCH] drm/i915/selftest: Fix use of err in igt_reset_{fail, nop}_engine() Message-ID: References: <20210813171158.2665823-1-nathan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210813171158.2665823-1-nathan@kernel.org> Precedence: bulk List-ID: X-Mailing-List: kernel-janitors@vger.kernel.org Ping? This is a pretty clear bug and it is not fixed in -next or drm-intel at this point. On Fri, Aug 13, 2021 at 10:11:58AM -0700, Nathan Chancellor wrote: > Clang warns: > > 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. > > 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. > > Fixes: 3a7b72665ea5 ("drm/i915/selftest: Bump selftest timeouts for hangcheck") > 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(-) > > 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) > > ce = intel_context_create(engine); > if (IS_ERR(ce)) { > - pr_err("[%s] Create context failed: %d!\n", engine->name, err); > + pr_err("[%s] Create context failed: %pe!\n", engine->name, ce); > return PTR_ERR(ce); > } > > @@ -577,7 +577,7 @@ static int igt_reset_fail_engine(void *arg) > > ce = intel_context_create(engine); > if (IS_ERR(ce)) { > - pr_err("[%s] Create context failed: %d!\n", engine->name, err); > + pr_err("[%s] Create context failed: %pe!\n", engine->name, ce); > return PTR_ERR(ce); > } > > > base-commit: 927dfdd09d8c03ba100ed0c8c3915f8e1d1f5556 > -- > 2.33.0.rc2