From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756575Ab1IJArc (ORCPT ); Fri, 9 Sep 2011 20:47:32 -0400 Received: from mail209.messagelabs.com ([216.82.255.3]:55646 "EHLO mail209.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756093Ab1IJArb (ORCPT ); Fri, 9 Sep 2011 20:47:31 -0400 X-Env-Sender: hartleys@visionengravers.com X-Msg-Ref: server-14.tower-209.messagelabs.com!1315615650!16021855!1 X-Originating-IP: [216.166.12.98] X-StarScan-Version: 6.3.6; banners=-,-,- X-VirusChecked: Checked From: H Hartley Sweeten To: Linux Kernel Subject: question: attribute 'require_context' Date: Fri, 9 Sep 2011 17:47:18 -0700 User-Agent: KMail/1.9.9 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-ID: <201109091747.18525.hartleys@visionengravers.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello all, I'm trying to do an allyesconfig build of the kernel on an old debian box with gcc version, gcc (Debian 4.3.2-1.1) 4.3.2. Everything goes fine until the DRBD device driver gets compiled. At that point I get a bunch of error messages like this: drivers/block/drbd/drbd_int.h:974:39 error: attribute 'require_context': unknown attribute It looks like this is due to the following: #ifdef __CHECKER__ # define __protected_by(x) __attribute__((require_context(x,1,999,"rdwr"))) # define __protected_read_by(x) __attribute__((require_context(x,1,999,"read"))) # define __protected_write_by(x) __attribute__((require_context(x,1,999,"write"))) # define __must_hold(x) __attribute__((context(x,1,1), require_context(x,1,999,"call"))) #else # define __protected_by(x) # define __protected_read_by(x) # define __protected_write_by(x) # define __must_hold(x) #endif Is the require_context attribute something found in a later version of gcc? Thanks, Hartley