From patchwork Tue Nov 19 14:22:11 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yann Droneaud X-Patchwork-Id: 3202421 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E7E779F26C for ; Tue, 19 Nov 2013 14:23:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 43E0020222 for ; Tue, 19 Nov 2013 14:23:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9D0D7202B8 for ; Tue, 19 Nov 2013 14:23:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752786Ab3KSOXN (ORCPT ); Tue, 19 Nov 2013 09:23:13 -0500 Received: from smtp3-g21.free.fr ([212.27.42.3]:59506 "EHLO smtp3-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823Ab3KSOXL (ORCPT ); Tue, 19 Nov 2013 09:23:11 -0500 Received: from localhost.localdomain (unknown [37.162.20.20]) by smtp3-g21.free.fr (Postfix) with ESMTP id 6F549A622B; Tue, 19 Nov 2013 15:23:02 +0100 (CET) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by localhost.localdomain (8.14.7/8.14.7) with ESMTP id rAJEMuJO025841; Tue, 19 Nov 2013 15:22:57 +0100 Received: (from ydroneaud@localhost) by localhost.localdomain (8.14.7/8.14.7/Submit) id rAJEMsUW025840; Tue, 19 Nov 2013 15:22:54 +0100 From: Yann Droneaud To: Roland Dreier , Roland Dreier Cc: Yann Droneaud , linux-rdma@vger.kernel.org Subject: [PATCH for-next 1/2] IB/core: const'ify inbuf in struct ib_udata Date: Tue, 19 Nov 2013 15:22:11 +0100 Message-Id: X-Mailer: git-send-email 1.8.4.2 In-Reply-To: References: In-Reply-To: References: <1384866781.20207.7.camel@localhost.localdomain> <528b3984.SVGs20ZWpcuR/Jls%fengguang.wu@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Userspace input buffer is not modified by kernel, let it be 'const'. It also a prerequisite to remove the implicit cast from INIT_UDATA(). Signed-off-by: Yann Droneaud Link: http://marc.info/?i=cover.1384869925.git.ydroneaud@opteya.com Link: http://mid.gmane.org/cover.1376847403.git.ydroneaud@opteya.com --- drivers/infiniband/core/uverbs.h | 2 +- include/rdma/ib_verbs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index bdc842e..9879568 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -49,7 +49,7 @@ #define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ do { \ - (udata)->inbuf = (void __user *) (ibuf); \ + (udata)->inbuf = (const void __user *) (ibuf); \ (udata)->outbuf = (void __user *) (obuf); \ (udata)->inlen = (ilen); \ (udata)->outlen = (olen); \ diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 979874c..61e1935 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -978,7 +978,7 @@ struct ib_uobject { }; struct ib_udata { - void __user *inbuf; + const void __user *inbuf; void __user *outbuf; size_t inlen; size_t outlen;