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[209.132.180.67]) by mx.google.com with ESMTP id p2si2130230edx.106.2019.10.09.19.30.27; Wed, 09 Oct 2019 19:30:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2019-08-05 header.b=oD01xZzz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732454AbfJJC1z (ORCPT + 99 others); Wed, 9 Oct 2019 22:27:55 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:34668 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726465AbfJJC1y (ORCPT ); Wed, 9 Oct 2019 22:27:54 -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 x9A2IqbR040330; Thu, 10 Oct 2019 02:27:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2019-08-05; bh=wbLroutOnvA812BxPr3bS3A0Ss61AI1f1pLVhnMY4VU=; b=oD01xZzzN8C953xNDw0ic8Mj64sNc9HfcKVfx3NWoPOMYql5gqv1QMZg7YYxuhA7n+LE APVtN6sixNEmpnBPStXqylYktb8GgDHsiBz4cFABCF9/c4+kgqp+gSQpRVJ263pES0Ls Zvcy5APbUspoTtdfU7KUeX/fnelbvhzaltyHz6F6bBX37aAzZ9czkFxZnP5ZMOBd9+G/ IuOwYu2d0PZky07A5sgXVd3/5DaQbew+tRc0ZEkZReJ7/FTJZpH8vIpnIUXyrbHfg0te HZLbM/eYfoGRJi+l6RFjaxq3thFOb9kAlvmEFhomMc2X3DtapxzA8/v866t+tOVyG/XQ 1A== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by aserp2120.oracle.com with ESMTP id 2vek4qr6my-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 10 Oct 2019 02:27:23 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9A2IWwM019077; Thu, 10 Oct 2019 02:25:23 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userp3030.oracle.com with ESMTP id 2vhrxchwfb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 10 Oct 2019 02:25:23 +0000 Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x9A2PJPT009595; Thu, 10 Oct 2019 02:25:19 GMT Received: from [192.168.1.222] (/71.63.128.209) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 09 Oct 2019 19:25:19 -0700 Subject: Re: [PATCH -next] userfaultfd: remove set but not used variable 'h' To: Wei Yang Cc: YueHaibing , Andrea Arcangeli , "Joel Fernandes (Google)" , Andrew Morton , Stephen Rothwell , Hugh Dickins , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org References: <20191009122740.70517-1-yuehaibing@huawei.com> <20191010012322.GB2167@richard> From: Mike Kravetz Message-ID: Date: Wed, 9 Oct 2019 19:25:18 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: <20191010012322.GB2167@richard> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9405 signatures=668684 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-1910100021 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9405 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 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-1910100021 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/9/19 6:23 PM, Wei Yang wrote: > On Wed, Oct 09, 2019 at 05:45:57PM -0700, Mike Kravetz wrote: >> On 10/9/19 5:27 AM, YueHaibing wrote: >>> Fixes gcc '-Wunused-but-set-variable' warning: >>> >>> mm/userfaultfd.c: In function '__mcopy_atomic_hugetlb': >>> mm/userfaultfd.c:217:17: warning: >>> variable 'h' set but not used [-Wunused-but-set-variable] >>> >>> It is not used since commit 78911d0e18ac ("userfaultfd: use vma_pagesize >>> for all huge page size calculation") >>> >> >> Thanks! That should have been removed with the recent cleanups. >> >>> Signed-off-by: YueHaibing >> >> Reviewed-by: Mike Kravetz > > If I am correct, this is removed in a recent patch. I'm having a hard time figuring out what is actually in the latest mmotm tree. Andrew added a build fixup patch ab169389eb5 in linux-next which adds the reference to h. Is there a patch after that to remove the reference? -- Mike Kravetz