From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH percpu#for-next] percpu: remove compile warnings caused by __verify_pcpu_ptr() Date: Wed, 18 Nov 2009 18:05:41 +0900 Message-ID: <4B03B8E5.7000706@kernel.org> References: <20091112174558.128cea97.sfr@canb.auug.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:60463 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754895AbZKRJGT (ORCPT ); Wed, 18 Nov 2009 04:06:19 -0500 In-Reply-To: <20091112174558.128cea97.sfr@canb.auug.org.au> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Rothwell Cc: Rusty Russell , Christoph Lameter , Ingo Molnar , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org If percpu pointer is const, __verify_pcpu_ptr() triggers warnings like the following. drivers/net/loopback.c: In function 'loopback_get_stats': drivers/net/loopback.c:109: warning: initialization discards qualifiers from pointer target type Fix it by adding const to the verification target pointer used in __verify_pcpu_ptr(). Signed-off-by: Tejun Heo Reported-by: Stephen Rothwell --- Sorry about the delay. Patch committed to percpu#for-next. Thanks. include/linux/percpu-defs.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index 1fa36eb..68567c0 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -24,7 +24,7 @@ * input parameter is a percpu pointer. */ #define __verify_pcpu_ptr(ptr) do { \ - void __percpu *__vpp_verify = (typeof(ptr))NULL; \ + const void __percpu *__vpp_verify = (typeof(ptr))NULL; \ (void)__vpp_verify; \ } while (0) -- 1.6.4.2