From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F1498C282CE for ; Mon, 11 Feb 2019 15:42:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B6284222A7 for ; Mon, 11 Feb 2019 15:42:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549899730; bh=G59B3UYJamT/5nmsYuetps5TNxpDFGTDLkZmy+eM9TQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ZAxyFfyOSFx54c0HDnxha5vww/9X8xouSMgrPHUZwqlvmYklLbMS0yU+fK98z0BEU pG8tUn1XbX8lEu58Artv1xNtG+fMGH/hjznn2/eFlDlWK1NrPxpEYTwSH0vDwQdCFA B/OXF7AY+JcUA6KKkTLr4WaZJDJw3fEuKBOzWOto= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732889AbfBKOq7 (ORCPT ); Mon, 11 Feb 2019 09:46:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:60218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732327AbfBKOq6 (ORCPT ); Mon, 11 Feb 2019 09:46:58 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0950C2081B; Mon, 11 Feb 2019 14:46:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549896418; bh=G59B3UYJamT/5nmsYuetps5TNxpDFGTDLkZmy+eM9TQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W/auHruciavfFZ05/PWjQj5FKVgqPD0cw6tIfv7wtahcRS4bqE3vLVcj/uiugFUyj 9CV9UvOcTICO4ZEm4OOzMKxkb/ZyYTTfvZEcf29Z6j3CDacasW3B9mTGfbFEZgolBF AK5BKGhaLYnCiAP0L+WOBK6Cune7z37e3sk/JL3M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe Leroy , Michael Ellerman , Sasha Levin Subject: [PATCH 4.19 177/313] powerpc/uaccess: fix warning/error with access_ok() Date: Mon, 11 Feb 2019 15:17:37 +0100 Message-Id: <20190211141905.187234738@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190211141852.749630980@linuxfoundation.org> References: <20190211141852.749630980@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 05a4ab823983d9136a460b7b5e0d49ee709a6f86 ] With the following piece of code, the following compilation warning is encountered: if (_IOC_DIR(ioc) != _IOC_NONE) { int verify = _IOC_DIR(ioc) & _IOC_READ ? VERIFY_WRITE : VERIFY_READ; if (!access_ok(verify, ioarg, _IOC_SIZE(ioc))) { drivers/platform/test/dev.c: In function 'my_ioctl': drivers/platform/test/dev.c:219:7: warning: unused variable 'verify' [-Wunused-variable] int verify = _IOC_DIR(ioc) & _IOC_READ ? VERIFY_WRITE : VERIFY_READ; This patch fixes it by referencing 'type' in the macro allthough doing nothing with it. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/include/asm/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index bac225bb7f64..23bea99bf8d5 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -63,7 +63,7 @@ static inline int __access_ok(unsigned long addr, unsigned long size, #endif #define access_ok(type, addr, size) \ - (__chk_user_ptr(addr), \ + (__chk_user_ptr(addr), (void)(type), \ __access_ok((__force unsigned long)(addr), (size), get_fs())) /* -- 2.19.1