From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-mips-owner@kernel.org>
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=-10.2 required=3.0 tests=BAYES_00,
	HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,
	SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 7125BC63798
	for <linux-mips@archiver.kernel.org>; Thu, 22 Jul 2021 13:00:27 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by mail.kernel.org (Postfix) with ESMTP id 59F6161287
	for <linux-mips@archiver.kernel.org>; Thu, 22 Jul 2021 13:00:27 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S231995AbhGVMTv (ORCPT <rfc822;linux-mips@archiver.kernel.org>);
        Thu, 22 Jul 2021 08:19:51 -0400
Received: from verein.lst.de ([213.95.11.211]:34032 "EHLO verein.lst.de"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S231840AbhGVMTu (ORCPT <rfc822;linux-mips@vger.kernel.org>);
        Thu, 22 Jul 2021 08:19:50 -0400
Received: by verein.lst.de (Postfix, from userid 2407)
        id 7EA5168B05; Thu, 22 Jul 2021 15:00:22 +0200 (CEST)
Date:   Thu, 22 Jul 2021 15:00:22 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Arnd Bergmann <arnd@kernel.org>
Cc:     linux-arch@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
        "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Anton Ivanov <anton.ivanov@cambridgegreys.com>,
        Brian Cain <bcain@codeaurora.org>,
        Chris Zankel <chris@zankel.net>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Christoph Hellwig <hch@lst.de>, Guo Ren <guoren@kernel.org>,
        Heiko Carstens <hca@linux.ibm.com>,
        Helge Deller <deller@gmx.de>, Jeff Dike <jdike@addtoit.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Max Filippov <jcmvbkbc@gmail.com>,
        Michal Simek <monstr@monstr.eu>,
        Richard Weinberger <richard@nod.at>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org,
        linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
        linux-s390@vger.kernel.org, linux-snps-arc@lists.infradead.org,
        linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org,
        uclinux-h8-devel@lists.sourceforge.jp
Subject: Re: [PATCH v3 3/9] hexagon: use generic strncpy/strnlen from_user
Message-ID: <20210722130022.GC26225@lst.de>
References: <20210722124814.778059-1-arnd@kernel.org> <20210722124814.778059-4-arnd@kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20210722124814.778059-4-arnd@kernel.org>
User-Agent: Mutt/1.5.17 (2007-11-01)
Precedence: bulk
List-ID: <linux-mips.vger.kernel.org>
X-Mailing-List: linux-mips@vger.kernel.org

On Thu, Jul 22, 2021 at 02:48:08PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> Remove the hexagon implementation of strncpy/strnlen and instead use
> the generic version.  The hexagon version reads the data twice for
> strncpy() by doing an extra strnlen(), and it apparently lacks a check
> for user_addr_max().
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>