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=-8.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 183FAC35DF5 for ; Tue, 25 Feb 2020 05:42:29 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D42B720CC7 for ; Tue, 25 Feb 2020 05:42:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="A86mzctf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D42B720CC7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:49268 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6SzE-0008VM-0r for qemu-devel@archiver.kernel.org; Tue, 25 Feb 2020 00:42:28 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60457) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6Syd-0007sT-HR for qemu-devel@nongnu.org; Tue, 25 Feb 2020 00:41:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j6Syc-0006A1-IG for qemu-devel@nongnu.org; Tue, 25 Feb 2020 00:41:51 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:28015 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j6Syc-00069n-FF for qemu-devel@nongnu.org; Tue, 25 Feb 2020 00:41:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582609310; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vk9ybKTfqFyPt8H/hWiVLqk4DQGRcqNb//UpSaxQcqg=; b=A86mzctf6rgBoJ+A2+BzR191GlrZhKNKhQ8Yi/5luQADYp3LJHRWRCupE6yRGiUADO+baR rTYlBqCA1NMUMaNqBi+OkIG3HHwpRjQSzxjt50T1jXCrlXsGkBHnzZfdYxol/r5ji3uCQ8 KR5Q0iFTdW8qkPO9e3wJm5iJ2MBgUY8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-364-kyLzb73-OY-lN27p22XJJQ-1; Tue, 25 Feb 2020 00:41:46 -0500 X-MC-Unique: kyLzb73-OY-lN27p22XJJQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9FADC18AB2C0; Tue, 25 Feb 2020 05:41:44 +0000 (UTC) Received: from [10.72.13.170] (ovpn-13-170.pek2.redhat.com [10.72.13.170]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9018A5C651; Tue, 25 Feb 2020 05:41:39 +0000 (UTC) Subject: Re: [PATCH] hw/net/imx_fec: write TGSR and TCSR3 in imx_enet_write() To: Chen Qun , qemu-devel@nongnu.org, qemu-trivial@nongnu.org References: <20200225025923.19328-1-kuhn.chenqun@huawei.com> From: Jason Wang Message-ID: <9206dda7-0e12-b68e-87ca-1985b61381bc@redhat.com> Date: Tue, 25 Feb 2020 13:41:38 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20200225025923.19328-1-kuhn.chenqun@huawei.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, peter.chubb@nicta.com.au, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 2020/2/25 =E4=B8=8A=E5=8D=8810:59, Chen Qun wrote: > The current code causes clang static code analyzer generate warning: > hw/net/imx_fec.c:858:9: warning: Value stored to 'value' is never read > value =3D value & 0x0000000f; > ^ ~~~~~~~~~~~~~~~~~~ > hw/net/imx_fec.c:864:9: warning: Value stored to 'value' is never read > value =3D value & 0x000000fd; > ^ ~~~~~~~~~~~~~~~~~~ > > According to the definition of the function, the two =E2=80=9Cvalue=E2=80= =9D assignments > should be written to registers. > > Reported-by: Euler Robot > Signed-off-by: Chen Qun > --- > I'm not sure if this modification is correct, just from the function > definition, it is correct. > --- > hw/net/imx_fec.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c > index 6a124a154a..92f6215712 100644 > --- a/hw/net/imx_fec.c > +++ b/hw/net/imx_fec.c > @@ -855,13 +855,13 @@ static void imx_enet_write(IMXFECState *s, uint32_t= index, uint32_t value) > break; > case ENET_TGSR: > /* implement clear timer flag */ > - value =3D value & 0x0000000f; > + s->regs[index] =3D value & 0x0000000f; > break; > case ENET_TCSR0: > case ENET_TCSR1: > case ENET_TCSR2: > case ENET_TCSR3: > - value =3D value & 0x000000fd; > + s->regs[index] =3D value & 0x000000fd; > break; > case ENET_TCCR0: > case ENET_TCCR1: Applied. Thanks