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SubjectRe: [PATCH 0/6] driver core: Fix some issues related to device links
On Thu, Jan 31, 2019 at 11:09:51AM +0100, Rafael J. Wysocki wrote:
> On Thu, Jan 24, 2019 at 12:25 PM Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> >
> > Hi Greg at al,
> >
> > 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.
> >
> > This series does not fix all issues in device links that have become
> > apparent (generally speaking, the idea of returning an existing link
> > in case there is one already for the given consumer-supplier pair
> > doesn't play well with stateful links and their flags), so there will
> > be a follow-up series of patches to clean that up. Still, I don't see
> > a reason to sit on these fixes while working on the other patches, so
> > here they go.
>
> Any concerns regarding this lot?
>
> [Please note that patch 5 in the series was replaced with the v2 at
> https://patchwork.kernel.org/patch/10781205/]
>
> If not, and if you don't mind, I would like to queue it up next week,
> possibly along with the follow-up material posted on Monday
> (https://lore.kernel.org/lkml/2405639.4es7pRLqn0@aspire.rjw.lan/) if
> that is not problematic, so it gets some linux-next coverage before
> the next merge window.

Can I queue it up in my tree, given that I have a number of other driver
core patches in there, and I don't know how the merge issues will be if
we start to diverge.

Or do you need this for some other work?

thanks,

greg k-h

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