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;
Subject: Re: [PATCH 08/10] nvdimm: Add driver for OpenCAPI Storage Class
 Memory
From:   "Alastair D'Silva" <alastair@au1.ibm.com>
To:     Andrew Donnellan <ajd@linux.ibm.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Frederic Barrat <fbarrat@linux.ibm.com>
Cc:     Oscar Salvador <osalvador@suse.com>,
        Michal Hocko <mhocko@suse.com>,
        David Hildenbrand <david@redhat.com>,
        Alexey Kardashevskiy <aik@ozlabs.ru>,
        Wei Yang <richard.weiyang@gmail.com>,
        Keith Busch <keith.busch@intel.com>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Paul Mackerras <paulus@samba.org>,
        Ira Weiny <ira.weiny@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Pavel Tatashin <pasha.tatashin@soleen.com>,
        Dave Jiang <dave.jiang@intel.com>,
        linux-nvdimm <linux-nvdimm@lists.01.org>,
        Vishal Verma <vishal.l.verma@intel.com>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
        Arnd Bergmann <arnd@arndb.de>, Greg Kurz <groug@kaod.org>,
        Nicholas Piggin <npiggin@gmail.com>, Qian Cai <cai@lca.pw>,
        =?ISO-8859-1?Q?C=E9dric?= Le Goater <clg@kaod.org>,
        Hari Bathini <hbathini@linux.ibm.com>,
        David Gibson <david@gibson.dropbear.id.au>,
        Linux MM <linux-mm@kvack.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Date:   Tue, 19 Nov 2019 13:48:26 +1100
In-Reply-To: <02374c9a-39fb-5693-3d9c-aa7e7674a6c1@linux.ibm.com>
References: <20191025044721.16617-1-alastair@au1.ibm.com>
         <20191025044721.16617-9-alastair@au1.ibm.com>
         <8232c1a6-d52a-6c32-6178-de082174a92a@linux.ibm.com>
         <CAPcyv4g9b6PyREurH9NcQf4BO2YcRGJPBZDqGKy-Vz91mBKjew@mail.gmail.com>
         <02374c9a-39fb-5693-3d9c-aa7e7674a6c1@linux.ibm.com>
Organization: IBM Australia
Content-Type: text/plain; charset="UTF-8"
User-Agent: Evolution 3.34.1 (3.34.1-1.fc31) 
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Message-Id: <7fd5a4571062a06da8f09f18300794b48ead5dc1.camel@au1.ibm.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, 2019-11-19 at 10:47 +1100, Andrew Donnellan wrote:
> On 15/11/19 3:35 am, Dan Williams wrote:
> > > Have you discussed with the directory owner if it's ok to split
> > > the
> > > driver over several files?
> > 
> > My thought is to establish drivers/opencapi/ and move this and the
> > existing drivers/misc/ocxl/ bits there.
> 
> Is there any other justification for this we can think of apart from
> not 
> wanting to put this driver in the nvdimm directory? OpenCAPI drivers 
> aren't really a category of driver unto themselves.
> 

There is a precedent for bus-based dirs, eg. drivers/(ide|w1|spi) all
contain drivers for both controllers & connected devices.

Fred, how do you feel about moving the generic OpenCAPI driver out of
drivers/misc?

-- 
Alastair D'Silva
Open Source Developer
Linux Technology Centre, IBM Australia
mob: 0423 762 819