Re: [PATCH v2 0/9] driver core: Fix some device links issues and add "consumer autoprobe" flag
From: Rafael J. Wysocki
Date: Fri Feb 01 2019 - 04:46:13 EST
On Friday, February 1, 2019 10:05:36 AM CET Greg Kroah-Hartman wrote:
> On Fri, Feb 01, 2019 at 01:44:59AM +0100, Rafael J. Wysocki wrote:
> > Hi Greg at al,
> > This is a combination of the two device links series I have posted
> > recently (https://lore.kernel.org/lkml/2493187.oiOpCWJBV7@xxxxxxxxxxxxxx/
> > and https://lore.kernel.org/lkml/2405639.4es7pRLqn0@xxxxxxxxxxxxxx/) rebased
> > on top of your driver-core-next branch.
> > Recently I have been looking at the device links code because of the
> > recent discussion on possibly using them in the DRM subsystem (see for
> > example https://marc.info/?l=linux-pm&m=154832771905309&w=2) and I have
> > found a few issues in that code which should be addressed by this patch
> > series. Please refer to the patch changelogs for details.
> > None of the problems addressed here should be manifesting themselves in
> > mainline kernel today, but if there are more device links users in the
> > future, they most likely will be encountered sooner or later. Also they
> > need to be fixed for the DRM use case to be supported IMO.
> > On top of this the series makes device links support the "composite device"
> > use case in the DRM subsystem mentioned above (essentially, the last patch
> > in the series is for that purpose).
> All now queued up, thanks!