From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C2D2351DB16; Wed, 30 Sep 2026 17:30:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790789457; cv=none; b=bHA9s8uSzkpTwcaGvYTD/8a5CYbXV+UDzOs5pXWj8EORf2imsPAqg9JXLdORR7PvWVt/yqgzrm2LNA8CxWLOIbPNIJMdszM2VxhdPuwCly6B9WVnZL8tfPnyqCh1a/yYgTNwotK2hKo1iU5HPz7J5zhYOw2EM0JZY6EI3b1Hbv0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790789457; c=relaxed/simple; bh=1cSrMyi6V58yqUmL13s0jIgqS73KUjHk09tGLnfDIVo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rt9FNrOSim9CdZby+ra6y1NXz/9KV3S1rRdE1nXJiG8r2rBGL2Q7LNpKiqjYvmlf6PmBrvr2x74UEZaJzpsQ3w3EwoZSgjaq++xvhVDKykpJRWzaFv3eyt3dSMLlna0pTMojt+YnHKwE2zRzJ+EBUX+RECvBY4ofucwQLeOK6ig= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=p6BkMSH/; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="p6BkMSH/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 260E01F000FF; Wed, 30 Sep 2026 17:30:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790789456; bh=bF5DToD6JuP6npYg0SmEAZeHW7yisjk3O0vCdh06j3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=p6BkMSH/xHoYyPUz8uCPSlgKeYQ6RIVRaqKb5G5fvxBKELoCzRR0O0iEkvehgj0yl i0B5D6xXkkd4xmW1A97F+vhOy87s5gtZ4UGcoXQjktBJKWWN/sNuzy4Pyzpw+huV95 K5jIvX6TiHa+5Er1MxVRSOCbnvsSMo37t4rmNNtU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ivan Lipski , Alex Deucher Subject: [PATCH 6.12 483/877] drm/amd/display: Bump frame warning limit for clang builds of dml Date: Wed, 30 Sep 2026 17:23:14 +0200 Message-ID: <20260930152425.088416427@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152414.738996857@linuxfoundation.org> References: <20260930152414.738996857@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ivan Lipski commit 18779dd84515db093fedb4ebaf0998c9b165a5fb upstream. [Why&How] When building the DML files with clang without any sanitizer or LTO, the following -Wframe-larger-than errors break the build under CONFIG_WERROR: display_mode_vba_30.c: error: stack frame size (2512) exceeds limit (2048) in 'dml30_ModeSupportAndSystemConfigurationFull' display_mode_vba_31.c: error: stack frame size (2416) exceeds limit (2048) in 'dml31_ModeSupportAndSystemConfigurationFull' display_mode_vba_314.c: error: stack frame size (2392) exceeds limit (2048) in 'dml314_ModeSupportAndSystemConfigurationFull' Clang consistently spills more than gcc, pushing the frame past the 2048 byte limit. Apply an existing approach of increasing the warn stack size to the non-sanitizer path so plain clang builds use a 3072 byte limit. Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5642 Signed-off-by: Ivan Lipski Signed-off-by: Alex Deucher (cherry picked from commit 21711b6e66bb7b41b1aec67b2d99aafe768c8fcb) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/dml/Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile @@ -36,7 +36,11 @@ ifneq ($(CONFIG_FRAME_WARN),0) frame_warn_limit := 3072 endif else - frame_warn_limit := 2048 + ifeq ($(CONFIG_CC_IS_CLANG),y) + frame_warn_limit := 3072 + else + frame_warn_limit := 2048 + endif endif ifeq ($(call test-lt, $(CONFIG_FRAME_WARN), $(frame_warn_limit)),y)