Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756863Ab2JXQlj (ORCPT ); Wed, 24 Oct 2012 12:41:39 -0400 Received: from nm9.access.bullet.mail.sp2.yahoo.com ([98.139.44.136]:30450 "EHLO nm9.access.bullet.mail.sp2.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935221Ab2JXQkI (ORCPT ); Wed, 24 Oct 2012 12:40:08 -0400 X-Yahoo-Newman-Id: 845324.79197.bm@smtp105.sbc.mail.gq1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: b55g8SQVM1nSdYyiVv_jNIKF7019afaQKHUIYsA2_6jpIuo vor1pKFHmRbrwbGi6jbZEYI3CTN3RoWWAiOi0ZEvNInAlE.4_1C9ww8vFG6a M7itMhBhmT_AMj1nksBMr6xXCMCqhNHQD5.xZ3bWirSXB2cKunkNWGpAxjDk dXK8mwSugYQlExyXcQiDj6bMpgNPlyLhPurunxKHte5NYSWpqQUzXGrKxq6T 44IjhSJ1GKmPHwyC14Ss7.IV8QUz6v.zOB4LLCdjWDu9vlWsESo7x5sHH.b7 .s4fR_qGKgFRsjxxeq3D2D9v.5.IwKUfwJRPYiIYoE73dzQ7S17XFl45F5pV Ad.6KlGn5TFevGCOg_R.1E2SUJ1_3_p2WlVN3oqEIco.MdKBKGmYM.km2VIn _OgHa_Ahj7HAI_QwU_yz6WsZJkBFK96qQNTBu9D7_5plUsXlsR8lNqOBD6f4 Y2aUbfVSskWrNiuYWwZBnec.ERuZQJrtWMejW8gtQALXcw0X1Getl5P6990V tYfId8GrVKmn_kOxC1uls15KGOZn4Fintv510bLKNQQKRn9iIBz1lxzedSSw cRD0hZsswE3yq9NEgOTg- X-Yahoo-SMTP: xXkkXk6swBBAi.5wfkIWFW3ugxbrqyhyk_b4Z25Sfu.XGQ-- From: danielfsantos@att.net To: LKML , Andi Kleen , Andrea Arcangeli , Andrew Morton , Christopher Li , Daniel Santos , David Daney , David Howells , Joe Perches , Josh Triplett , Konstantin Khlebnikov , linux-sparse@vger.kernel.org, Michel Lespinasse , Paul Gortmaker , Pavel Pisa , Peter Zijlstra , Steven Rostedt , Borislav Petkov , David Rientjes Subject: [PATCH v3 02/10] compiler-gcc.h: Add gcc-recommended GCC_VERSION macro Date: Wed, 24 Oct 2012 11:33:53 -0500 Message-Id: <1351096441-12388-2-git-send-email-daniel.santos@pobox.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1351096132-12244-1-git-send-email-daniel.santos@pobox.com> References: <1351096132-12244-1-git-send-email-daniel.santos@pobox.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1645 Lines: 52 Throughout compiler*.h, many version checks are made. These can be simplified by using the macro that gcc's documentation recommends. However, my primary reason for adding this is that I need bug-check macros that are enabled at certain gcc versions and it's cleaner to use this macro than the tradition method: if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ => 2) If you add patch level, it gets this ugly: if __GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 2 || \ __GNUC_MINOR__ == 2 __GNUC_PATCHLEVEL__ >= 1)) As opposed to: if GCC_VERSION >= 40201 While having separate headers for gcc 3 & 4 eliminates some of this verbosity, they can still be cleaned up by this. See also: http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html Signed-off-by: Daniel Santos Acked-by: Borislav Petkov Acked-by: David Rientjes --- include/linux/compiler-gcc.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 6a6d7ae..24545cd 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -5,6 +5,9 @@ /* * Common definitions for all gcc versions go here. */ +#define GCC_VERSION (__GNUC__ * 10000 \ + + __GNUC_MINOR__ * 100 \ + + __GNUC_PATCHLEVEL__) /* Optimization barrier */ -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/