[PATCH 0/6] Make remove() of any bus based driver void returned
Greg KH
gregkh at linuxfoundation.org
Tue Dec 6 03:00:52 AEDT 2022
On Mon, Dec 05, 2022 at 11:36:38PM +0800, Dawei Li wrote:
> For bus-based driver, device removal is implemented as:
> device_remove() => bus->remove() => driver->remove()
>
> Driver core needs no feedback from bus driver about the result of
> remove callback. In which case, commit fc7a6209d571 ("bus: Make
> remove callback return void") forces bus_type::remove be void-returned.
>
> Now we have the situation that both 1st & 2nd part of calling chain
> are void returned, so it does not make much sense for the last one
> (driver->remove) to return non-void to its caller.
>
> So the basic idea behind this patchset is making remove() callback of
> any bus-based driver to be void returned.
>
> This patchset includes changes for drivers below:
> 1. hyperv
> 2. macio
> 3. apr
> 4. xen
> 5. ac87
> 6. soundbus
Then that should be 6 different patchsets going to 6 different
subsystems. No need to make this seems like a unified set of patches at
all.
> Q: Why not platform drivers?
> A: Too many of them.(maybe 4K+)
That will have to be done eventually, right?
thanks,
greg k-h
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