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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 13 Sep 2018 01:48:20 +0100 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w8D0mJC914221356 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 13 Sep 2018 00:48:19 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 210BF4C044; Thu, 13 Sep 2018 03:48:10 +0100 (BST) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C0DCE4C040; Thu, 13 Sep 2018 03:48:09 +0100 (BST) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 13 Sep 2018 03:48:09 +0100 (BST) Received: from [9.102.33.156] (unknown [9.102.33.156]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 7611BA00FF; Thu, 13 Sep 2018 10:48:15 +1000 (AEST) Subject: Re: [PATCH v2 03/17] compat_ioctl: use correct compat_ptr() translation in drivers To: Arnd Bergmann , viro@zeniv.linux.org.uk Cc: linux-fsdevel@vger.kernel.org, Frederic Barrat , Greg Kroah-Hartman , Frank Haverkamp , "Guilherme G. Piccoli" , Kashyap Desai , Sumit Saxena , Shivasharan S , "James E.J. Bottomley" , "Martin K. Petersen" , Felipe Balbi , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org References: <20180912150142.157913-1-arnd@arndb.de> <20180912150142.157913-3-arnd@arndb.de> From: Andrew Donnellan Date: Thu, 13 Sep 2018 10:48:15 +1000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180912150142.157913-3-arnd@arndb.de> Content-Language: en-AU X-TM-AS-GCONF: 00 x-cbid: 18091300-4275-0000-0000-000002B991B0 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18091300-4276-0000-0000-000037C2C812 Message-Id: <11132252-c6ba-8b53-9314-f91e77574eba@au1.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-09-12_10:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=474 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809130006 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13/09/18 01:01, Arnd Bergmann wrote: > A handful of drivers all have a trivial wrapper around their ioctl > handler, but don't call the compat_ptr() conversion function at the > moment. In practice this does not matter, since none of them are used > on the s390 architecture and for all other architectures, compat_ptr() > does not do anything, but using the new generic_compat_ioctl_ptrarg > helper makes it more correct in theory, and simplifies the code. > > Signed-off-by: Arnd Bergmann For cxl: Acked-by: Andrew Donnellan -- Andrew Donnellan OzLabs, ADL Canberra andrew.donnellan@au1.ibm.com IBM Australia Limited