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Date: Fri, 21 Jun 2019 18:19:36 +0200 (CEST)
From: Sebastian Ott <sebott@linux.ibm.com>
Subject: Re: [PATCH] s390/cio: introduce driver_override on the css bus
In-Reply-To: <20190613110815.17251-1-cohuck@redhat.com>
References: <20190613110815.17251-1-cohuck@redhat.com>
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Sender: linux-s390-owner@vger.kernel.org
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To: Cornelia Huck <cohuck@redhat.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Heiko Carstens <heiko.carstens@de.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org

On Thu, 13 Jun 2019, Cornelia Huck wrote:
> Sometimes, we want to control which of the matching drivers
> binds to a subchannel device (e.g. for subchannels we want to
> handle via vfio-ccw).
> 
> For pci devices, a mechanism to do so has been introduced in
> 782a985d7af2 ("PCI: Introduce new device binding path using
> pci_dev.driver_override"). It makes sense to introduce the
> driver_override attribute for subchannel devices as well, so
> that we can easily extend the 'driverctl' tool (which makes
> use of the driver_override attribute for pci).
> 
> Note that unlike pci we still require a driver override to
> match the subchannel type; matching more than one subchannel
> type is probably not useful anyway.
> 
> Signed-off-by: Cornelia Huck <cohuck@redhat.com>

Reviewed-by: Sebastian Ott <sebott@linux.ibm.com>

Should I take that via our git tree or do you have other patches depending 
on this one?