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 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95325C636CC for ; Tue, 31 Jan 2023 15:02:22 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 68B1285A1A; Tue, 31 Jan 2023 16:02:19 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=andestech.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by phobos.denx.de (Postfix, from userid 109) id 1CF2A85AE6; Tue, 31 Jan 2023 16:01:25 +0100 (CET) Received: from Atcsqr.andestech.com (60-248-80-70.hinet-ip.hinet.net [60.248.80.70]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 04B9585AB0 for ; Tue, 31 Jan 2023 16:00:23 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=andestech.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=ycliang@andestech.com Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 30VF0AZQ026018; Tue, 31 Jan 2023 23:00:10 +0800 (+08) (envelope-from ycliang@andestech.com) Received: from ubuntu01 (10.0.12.75) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Tue, 31 Jan 2023 23:00:08 +0800 Date: Tue, 31 Jan 2023 15:00:05 +0000 From: Leo Liang To: Rick Chen CC: , , Subject: Re: [PATCH v3 2/2] riscv: memcpy: check src and dst before copy Message-ID: References: <20230104015628.29787-1-rick@andestech.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20230104015628.29787-1-rick@andestech.com> User-Agent: Mutt/2.0.5 (2021-01-21) X-Originating-IP: [10.0.12.75] X-DNSRBL: X-MAIL: Atcsqr.andestech.com 30VF0AZQ026018 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean On Wed, Jan 04, 2023 at 09:56:28AM +0800, Rick Chen wrote: > Add src and dst address checking, if they > are the same address, just return and don't > copy data anymore. > > Signed-off-by: Rick Chen > --- > Changes in v3 > - new patch: separate from [1/2] > --- > arch/riscv/lib/memcpy.S | 2 ++ > 1 file changed, 2 insertions(+) Reviewed-by: Leo Yu-Chi Liang