Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759484Ab1EMVFu (ORCPT ); Fri, 13 May 2011 17:05:50 -0400 Received: from mail-gw0-f46.google.com ([74.125.83.46]:61568 "EHLO mail-gw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756590Ab1EMVFs (ORCPT ); Fri, 13 May 2011 17:05:48 -0400 Date: Fri, 13 May 2011 18:06:20 -0300 From: "Gustavo F. Padovan" To: Stephen Boyd Cc: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Marcel Holtmann Subject: Re: [PATCH 6/9] Bluetooth: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning Message-ID: <20110513210620.GB2187@joana> Mail-Followup-To: Stephen Boyd , linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Marcel Holtmann References: <1305244212-19183-1-git-send-email-sboyd@codeaurora.org> <1305244212-19183-7-git-send-email-sboyd@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1305244212-19183-7-git-send-email-sboyd@codeaurora.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1120 Lines: 35 Hi Stephen, * Stephen Boyd [2011-05-12 16:50:09 -0700]: > Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following > warning: > > In function 'copy_from_user', > inlined from 'rfcomm_sock_setsockopt' at > net/bluetooth/rfcomm/sock.c:705: > arch/x86/include/asm/uaccess_64.h:65: > warning: call to 'copy_from_user_overflow' declared with > attribute warning: copy_from_user() buffer size is not provably > correct > > presumably due to buf_size being signed causing GCC to fail to > see that buf_size can't become negative. > > Cc: Marcel Holtmann > Cc: Gustavo F. Padovan > Signed-off-by: Stephen Boyd > --- > net/bluetooth/rfcomm/sock.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) Applied, thanks. -- Gustavo F. Padovan http://profusion.mobi -- 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/