Re: [char-misc-next 01/11 V2] mei: bus: Initial MEI bus typeimplementation

From: Samuel Ortiz
Date: Mon Feb 11 2013 - 08:46:20 EST

Hi Arnd,

On Mon, Feb 11, 2013 at 11:50:26AM +0000, Arnd Bergmann wrote:
> On Sunday 10 February 2013, Samuel Ortiz wrote:
> > > >
> > > > /**
> > > > + * mei_bus_client
> > >
> > > I don't really understand this structure, please explain it better.
> > This is a structure that links the MEI bus client pointer passed to the driver
> > with the actual ME client. It also allows the ME driver to implement
> > technology specific ME protocol through the send/recv hooks.
> I think part of the confusion is that this is what in other subsystems
> is called a device, not a client. I believe I'm still confused in the
> same way that Greg is.
Ok, I understand where the confusion comes from now. Yes, for most of the
other subsystems, this is a device. Initially I tried to keep the MEI bus code
as little intrusive as possible and I didn't want to rename mei_device to
something else.

> You already have a 'struct mei_device', which refers to the PCI device
> that owns the bus, and has clients attached to it. While it may be
> a little confusing to people that already worked with the current
> mei code, I think it would help to rename the existing 'mei_device'
> to 'mei_host' or something else that feels appropriate, and introduce
> the new structure as 'mei_device' derived from 'struct device', again
> matching what most other subsystems do.
I understand, and I agree it would make sense. As we're aiming at having this
patchset merged during the next merge window, would it be ok to have this
renaming phase as a follow up patch ?

> Similarly, you can then rename 'mei_bus_driver' to 'mei_driver' to fit
> that logic, since I would consider a 'bus_driver' to be something
> that is responsible for the entire bus, not just for one device.
That would make sense as well, and I can have this done through patchset v4.


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