Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932953Ab1EMAFr (ORCPT ); Thu, 12 May 2011 20:05:47 -0400 Received: from mga01.intel.com ([192.55.52.88]:58108 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932356Ab1EMAFp (ORCPT ); Thu, 12 May 2011 20:05:45 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.64,361,1301900400"; d="scan'208";a="1573748" Subject: Re: [PATCH 2/9] iwlwifi: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning From: wwguy To: Stephen Boyd Cc: "John W. Linville" , "linux-kernel@vger.kernel.org" , Intel Linux Wireless , "linux-wireless@vger.kernel.org" , "netdev@vger.kernel.org" In-Reply-To: <1305244212-19183-3-git-send-email-sboyd@codeaurora.org> References: <1305244212-19183-1-git-send-email-sboyd@codeaurora.org> <1305244212-19183-3-git-send-email-sboyd@codeaurora.org> Content-Type: text/plain; charset="UTF-8" Date: Thu, 12 May 2011 17:02:36 -0700 Message-ID: <1305244956.3589.1.camel@wwguy-ubuntu> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1316 Lines: 35 On Thu, 2011-05-12 at 16:50 -0700, Stephen Boyd wrote: > Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following > warning: > > In file included from arch/x86/include/asm/uaccess.h:573, > from include/net/checksum.h:25, > from include/linux/skbuff.h:28, > from drivers/net/wireless/iwlwifi/iwl-agn-rs.c:28: > In function 'copy_from_user', > inlined from 'rs_sta_dbgfs_scale_table_write' at > drivers/net/wireless/iwlwifi/iwl-agn-rs.c:3099: > 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: Wey-Yi Guy > Signed-off-by: Stephen Boyd Signed-off-by: Wey-Yi Guy > --- > drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > Thank you Wey -- 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/