Re: [PATCH] driver core: platform: add device binding path 'driver_override'

[Greg KH <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>]

On Mon, Jun 02, 2014 at 07:42:58PM -0500, Kim Phillips wrote:
> Needed by platform device drivers, such as the upcoming
> vfio-platform driver, in order to bypass the existing OF, ACPI,
> id_table and name string matches, and successfully be able to be
> bound to any device, like so:
> 
> echo vfio-platform > /sys/bus/platform/devices/fff51000.ethernet/driver_override
> echo fff51000.ethernet > /sys/bus/platform/devices/fff51000.ethernet/driver/unbind
> echo fff51000.ethernet > /sys/bus/platform/drivers_probe
> 
> This mimics "PCI: Introduce new device binding path using
> pci_dev.driver_override", which is an interface enhancement
> for more deterministic PCI device binding, e.g., when in the
> presence of hotplug.
> 
> Reviewed-by: Alex Williamson <alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Reviewed-by: Alexander Graf <agraf-l3A5Bk7waGM@public.gmane.org>
> Reviewed-by: Stuart Yoder <stuart.yoder-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
> Signed-off-by: Kim Phillips <kim.phillips-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
> ---
> Greg,
> 
> This is largely identical to the PCI version of the same that has
> been accepted for v3.16 and ack'd by you:
> 
> https://lists.cs.columbia.edu/pipermail/kvmarm/2014-May/009674.html
> 
> and applied to Bjorn Helgaas' PCI tree:
> 
> https://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/commit/?h=pci/virtualization&id=782a985d7af26db39e86070d28f987cad21313c0
> 
> You are the platform driver core maintainer: can you apply this to
> your driver-core tree now?

Yes, I will after this merge window ends, it's too late for 3.16-rc1
with the window opening up a week early, sorry.

greg k-h