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=-8.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 CA756C352AA for ; Wed, 2 Oct 2019 13:25:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9EF0821A4A for ; Wed, 2 Oct 2019 13:25:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="MXs6npPD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727800AbfJBNZe (ORCPT ); Wed, 2 Oct 2019 09:25:34 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:41668 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725851AbfJBNZe (ORCPT ); Wed, 2 Oct 2019 09:25:34 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x92DJRAr183582; Wed, 2 Oct 2019 13:25:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2019-08-05; bh=fnaqluJS7+jNKo+sOB2hvdoik1MKiOaiznVs/0wd7Co=; b=MXs6npPDLQui/GxD0IyNFtJQw1xdpRdorriOxmnfZPln/9faBkAjU5tSe4XwbkSFDpDm mnZfpnly6zTxdayCH60d/TW9sSAkf1ZZDhtjcmUjh768ocm4Mvk54erB+troAq90TNDL uH6FJI/uiOt4rQ7jMQPErTU12pUwOPAX9vw7umISTSPMOnjiRUXfMLfKMfAiPUcJRtui sh/JxhHT2fnDC+BbFicsthFyqBBP8gbpQw5cpdz30wHHy4Fup3H8gOPzlswKMfHCgn/z nUaHOngUxJxZQPQKaCS+SGLv20voNty3EN06YCEBFO4aavaqHowN+wTdDfMkmFWo4UZT Aw== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by aserp2120.oracle.com with ESMTP id 2v9yfqcvx8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Oct 2019 13:25:20 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x92DMmFk184316; Wed, 2 Oct 2019 13:25:20 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3030.oracle.com with ESMTP id 2vbsm3utr0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Oct 2019 13:25:20 +0000 Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x92DPIJJ025995; Wed, 2 Oct 2019 13:25:18 GMT Received: from kadam (/41.57.98.10) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 02 Oct 2019 06:25:18 -0700 Date: Wed, 2 Oct 2019 16:25:06 +0300 From: Dan Carpenter To: Colin King Cc: Thierry Reding , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , Maxime Ripard , Chen-Yu Tsai , linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] pwm: sun4i: redundant assignment to variable pval Message-ID: <20191002132506.GO22609@kadam> References: <20191002100844.10490-1-colin.king@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191002100844.10490-1-colin.king@canonical.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9397 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910020128 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9397 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910020128 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 02, 2019 at 11:08:44AM +0100, Colin King wrote: > From: Colin Ian King > > Variable pval is being assigned a value that is never read. The > assignment is redundant and hence can be removed. > > Addresses-Coverity: ("Unused value") > Signed-off-by: Colin Ian King > --- > drivers/pwm/pwm-sun4i.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c > index 6f5840a1a82d..53970d4ba695 100644 > --- a/drivers/pwm/pwm-sun4i.c > +++ b/drivers/pwm/pwm-sun4i.c > @@ -156,7 +156,6 @@ static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4i_pwm, > if (sun4i_pwm->data->has_prescaler_bypass) { > /* First, test without any prescaler when available */ > prescaler = PWM_PRESCAL_MASK; > - pval = 1; > /* > * When not using any prescaler, the clock period in nanoseconds > * is not an integer so round it half up instead of Are you sure? It looks used to me. regards, dan carpenter