From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754737Ab1BPV4E (ORCPT ); Wed, 16 Feb 2011 16:56:04 -0500 Received: from metis.ext.pengutronix.de ([92.198.50.35]:34029 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754170Ab1BPVz7 (ORCPT ); Wed, 16 Feb 2011 16:55:59 -0500 From: Marc Kleine-Budde To: kernel@pengutronix.de Cc: Greg Kroah-Hartman , Andrew Morton , linux-kernel@vger.kernel.org, Marc Kleine-Budde Subject: [PATCH 1/2] kernel.h: introduce BUILD_BUG_ON_NOT_SAME_TYPE Date: Wed, 16 Feb 2011 22:55:50 +0100 Message-Id: <1297893351-2900-2-git-send-email-mkl@pengutronix.de> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <1297893351-2900-1-git-send-email-mkl@pengutronix.de> References: <1297893351-2900-1-git-send-email-mkl@pengutronix.de> X-SA-Exim-Connect-IP: 2001:6f8:1178:4:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch introduces BUILD_BUG_ON_NOT_SAME_TYPE which forces a compilation error if the two supplied variables don't have the same type. Signed-off-by: Marc Kleine-Budde --- include/linux/kernel.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2fe6e84..b637d57 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -612,6 +612,8 @@ extern int __build_bug_on_failed; } while(0) #endif +#define BUILD_BUG_ON_NOT_SAME_TYPE(a, b) BUILD_BUG_ON(!__same_type((a), (b))); + /* Trap pasters of __FUNCTION__ at compile-time */ #define __FUNCTION__ (__func__) -- 1.7.2.3