Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756714AbaFYWL7 (ORCPT ); Wed, 25 Jun 2014 18:11:59 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:44536 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754214AbaFYWL6 (ORCPT ); Wed, 25 Jun 2014 18:11:58 -0400 Message-ID: <53AB492D.9010107@gmail.com> Date: Thu, 26 Jun 2014 06:11:57 +0800 From: Chen Gang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Lennox Wu CC: Liqin Chen , Guenter Roeck , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] arch/score/include/asm/uaccess.h: Use standard clear_user() prototype References: <53A6CC0E.5010000@gmail.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/25/2014 11:29 PM, Lennox Wu wrote: > Thanks for the patch. > > Acked-by: Lennox Wu > Thank you for your work, and I shall continue, hope I can finish allmodconfig for score within next month (2014-07-31). Thanks. > 2014-06-22 20:29 GMT+08:00 Chen Gang : >> Use standard clear_user() just like another architectures, also match >> __clear_user() under score. >> >> The related warning (allmodconfig under score): >> >> CC [M] drivers/md/dm-ioctl.o >> drivers/md/dm-ioctl.c: In function 'copy_params': >> drivers/md/dm-ioctl.c:1728:33: warning: passing argument 1 of 'clear_user' from incompatible pointer type >> if (secure_data && clear_user(user, param_kernel->data_size)) >> ^ >> In file included from include/linux/uaccess.h:5:0, >> from include/linux/highmem.h:8, >> from include/linux/bio.h:23, >> from include/linux/device-mapper.h:11, >> from drivers/md/dm.h:14, >> from drivers/md/dm-ioctl.c:8: >> ./arch/score/include/asm/uaccess.h:364:29: note: expected 'char *' but argument is of type 'struct dm_ioctl *' >> static inline unsigned long clear_user(char *src, unsigned long size) >> ^ >> >> Signed-off-by: Chen Gang >> --- >> arch/score/include/asm/uaccess.h | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h >> index ab66ddd..259a539 100644 >> --- a/arch/score/include/asm/uaccess.h >> +++ b/arch/score/include/asm/uaccess.h >> @@ -361,7 +361,8 @@ copy_in_user(void *to, const void *from, unsigned long len) >> */ >> extern unsigned long __clear_user(void __user *src, unsigned long size); >> >> -static inline unsigned long clear_user(char *src, unsigned long size) >> +static inline unsigned long __must_check clear_user(void __user *src, >> + unsigned long size) >> { >> if (access_ok(VERIFY_WRITE, src, size)) >> return __clear_user(src, size); >> -- >> 1.9.2.459.g68773ac -- Chen Gang Open share and attitude like air water and life which God blessed -- 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/