[PATCH 1/3] driver core: Support asynchronous driver shutdown

[Greg KH]

On Thu, Dec 14, 2023 at 04:03:56PM -0800, Jeremy Allison wrote:
> From: Tanjore Suresh <tansuresh at google.com>
> 
> This changes the bus driver interface with additional entry points
> to enable devices to implement asynchronous shutdown. The existing
> synchronous interface to shutdown is unmodified and retained for
> backward compatibility. shutdown_pre is only called if a matching
> shutdown_post function is also registered, otherwise the synchronous
> synchronous interface is used.
> 
> This changes the common device shutdown code to enable devices to
> participate in asynchronous shutdown implementation.
> 
> Signed-off-by: Tanjore Suresh <tansuresh at google.com>
> Signed-off-by: Jeremy Allison <jallison at ciq.com>

Reviewed-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>