Re: [PATCH v2 00/10] drivers, provide a way to add sysfs groups easily

Dmitry Torokhov
2019-07-31T13:10:45Z

On Wed, Jul 31, 2019 at 02:43:39PM +0200, Greg Kroah-Hartman wrote:
> This patch originally started out just as a way for platform drivers to
> easily add a sysfs group in a race-free way, but thanks to Dmitry's
> patch, this series now is for all drivers in the kernel (hey, a unified
> driver model works!!!)
>
> I've only converted a few platform drivers here in this series to show
> how it works, but other busses can be converted after the first patch
> goes into the tree.
>
> Here's the original 00 message, for people to get an idea of what is
> going on here:
>
> If a platform driver wants to add a sysfs group, it has to do so in a
> racy way, adding it after the driver is bound. To resolve this issue,
> have the platform driver core do this for the driver, making the
> individual drivers logic smaller and simpler, and solving the race at
> the same time.
>
> All of these patches depend on the first patch. I'll take the first one
> through my driver-core tree, and any subsystem maintainer can either ack
> their individul patch and I will be glad to also merge it, or they can
> wait until after 5.4-rc1 when the core patch hits Linus's tree and then
> take it, it's up to them.

Maybe make an immutable branch off 5.2 with just patch 1/10 so that
subsystems (and the driver core tree itself) could pull it in at their
leisure into their "*-next" branches and did not have to wait till 5.4
or risk merge clashes?

Thanks.

--
Dmitry