Re: [PATCH v2 3/6] rust: device: Support testing devices for equality

[Greg Kroah-Hartman]

On Tue, Feb 03, 2026 at 03:46:32PM +0000, Matthew Maurer wrote:
> This allows device drivers to check if, for example, an auxiliary
> devices is one of its children by comparing the parent field, or
> checking if a device parameter is its own device.

Ok, but why?  This says what it does, but I have no context as to why
this would be needed.

What driver wants to know this?

thanks,

greg k-h