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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 9C3A0C433DB for ; Thu, 4 Mar 2021 12:22:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6BDCE6023B for ; Thu, 4 Mar 2021 12:22:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240371AbhCDMVh (ORCPT ); Thu, 4 Mar 2021 07:21:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237383AbhCDMVY (ORCPT ); Thu, 4 Mar 2021 07:21:24 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24452C061574; Thu, 4 Mar 2021 04:20:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=48o+7Ew2TEHGhvXnSGIxTpLjlrQRRnA22kMV8wVA6Xw=; b=hKdnZ3TF7fJIicyODRx49bYmzm Rq2kGOJGMYUS/xHuikVhIFGSVSlVjlpsYjmqSj2SxmVmyxfEMnd7zhmQ4xSwkasfyC96RwabICyJv 9wniy/m0TSnUp7ZJtwM0HqhWOpN+LD3uggn5MngrkJFMrpcChnHLCJH3nqN/ch6pRCCdTKP3/7897 kLneOM40LamBpBCKxkcriN8L7eXU0rcnWagzJoAk5ZR1hkhN2B+uGejvfdzMS3c42V2yGi35zo3XC Q1mXPKOkipbNVTn9EP8oRVWkt/b/A34EMn5Q4Ksgt+xzBkqUuuva2kP0m33b+fsfriAxbxoKN5k0x iSCRrasg==; Received: from willy by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lHmvT-006ynq-Ex; Thu, 04 Mar 2021 12:18:06 +0000 Date: Thu, 4 Mar 2021 12:17:55 +0000 From: Matthew Wilcox To: Yang Li Cc: viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] xattr: switch to vmemdup_user() Message-ID: <20210304121755.GJ2723601@casper.infradead.org> References: <1614666741-16796-1-git-send-email-yang.lee@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1614666741-16796-1-git-send-email-yang.lee@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Tue, Mar 02, 2021 at 02:32:21PM +0800, Yang Li wrote: > Replace opencoded alloc and copy with vmemdup_user() > > fixed the following coccicheck: > ./fs/xattr.c:561:11-19: WARNING opportunity for vmemdup_user > > Reported-by: Abaci Robot > Signed-off-by: Yang Li Reviewed-by: Matthew Wilcox (Oracle)