From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754280Ab1G0Amr (ORCPT ); Tue, 26 Jul 2011 20:42:47 -0400 Received: from mga01.intel.com ([192.55.52.88]:6474 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753100Ab1G0Aex (ORCPT ); Tue, 26 Jul 2011 20:34:53 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,272,1309762800"; d="scan'208";a="34855483" From: Andi Kleen References: <20110726534.972201586@firstfloor.org> In-Reply-To: <20110726534.972201586@firstfloor.org> To: davej@redhat.com, sam@ravnborg.org, mmarek@suse.cz, ak@linux.intel.com, linux-kernel@vger.kernel.org, stable@kernel.org, tim.bird@am.sony.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] [1/98] kbuild: Disable -Wunused-but-set-variable for gcc 4.6.0 Message-Id: <20110727003453.01E212403FF@tassilo.jf.intel.com> Date: Tue, 26 Jul 2011 17:34:53 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.35-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Dave Jones [ upstream commit af0e5d565d2fffcd97d1e2d89669d627cc04e8b8 ] Disable the new -Wunused-but-set-variable that was added in gcc 4.6.0 It produces more false positives than useful warnings. This can still be enabled using W=1 [AK: dropped W=1 support in backport] Signed-off-by: Dave Jones Acked-by: Sam Ravnborg Tested-by: Sam Ravnborg Signed-off-by: Michal Marek Signed-off-by: Andi Kleen Index: linux-2.6.35.y/Makefile =================================================================== --- linux-2.6.35.y.orig/Makefile +++ linux-2.6.35.y/Makefile @@ -546,6 +546,9 @@ ifndef CONFIG_CC_STACKPROTECTOR KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) endif +# This warning generated too much noise in a regular build. +KBUILD_CFLAGS += $(call cc-option, -Wno-unused-but-set-variable) + ifdef CONFIG_FRAME_POINTER KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls else