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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Sun, 1 Mar 2020 06:33:17 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0216WJJ246334418 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 1 Mar 2020 06:32:19 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C5277AE051; Sun, 1 Mar 2020 06:33:16 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 523D5AE04D; Sun, 1 Mar 2020 06:33:16 +0000 (GMT) Received: from linux.ibm.com (unknown [9.148.8.81]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Sun, 1 Mar 2020 06:33:16 +0000 (GMT) Date: Sun, 1 Mar 2020 08:33:14 +0200 From: Mike Rapoport To: Colin King Cc: Andrew Morton , linux-mm@kvack.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/memblock: remove redundant assignment to variable max_addr References: <20200228235003.112718-1-colin.king@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200228235003.112718-1-colin.king@canonical.com> X-TM-AS-GCONF: 00 x-cbid: 20030106-0016-0000-0000-000002EBA91F X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030106-0017-0000-0000-0000334EE6AB Message-Id: <20200301063314.GA6636@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-01_01:2020-02-28,2020-03-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 mlxlogscore=999 malwarescore=0 impostorscore=0 suspectscore=1 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 priorityscore=1501 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003010050 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Feb 28, 2020 at 11:50:03PM +0000, Colin King wrote: > From: Colin Ian King > > The variable max_addr is being initialized with a value that is never > read and it is being updated later with a new value. The initialization > is redundant and can be removed. > > Addresses-Coverity: ("Unused value") > Signed-off-by: Colin Ian King Reviewed-by: Mike Rapoport > --- > mm/memblock.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/memblock.c b/mm/memblock.c > index eba94ee3de0b..4d06bbaded0f 100644 > --- a/mm/memblock.c > +++ b/mm/memblock.c > @@ -1698,7 +1698,7 @@ static phys_addr_t __init_memblock __find_max_addr(phys_addr_t limit) > > void __init memblock_enforce_memory_limit(phys_addr_t limit) > { > - phys_addr_t max_addr = PHYS_ADDR_MAX; > + phys_addr_t max_addr; > > if (!limit) > return; > -- > 2.25.0 > -- Sincerely yours, Mike.