linux-kernel - Re: [PATCH] serial: relocate remaining serial drivers from tty/ to tty/serial/

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Date:	Wed, 4 Jan 2012 23:27:33 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Greg KH <gregkh@...e.de>
Cc:	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Jiri Slaby <jslaby@...e.cz>, alan@...ux.intel.com,
	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: [PATCH] serial: relocate remaining serial drivers from tty/ to tty/serial/

On Wednesday 04 January 2012, Greg KH wrote:
> > 
> > My thinking was that having a drivers/tty/serial dir and then
> > not having all the serial drivers in that dir violated the
> > principle of least surprise.  Is there a reason why the dir should
> > be the exclusive domain of drivers with a dependency on SERIAL_CORE?
> 
> Because that is what the directory is for?  :)
> 
> We have other "serial" like drivers all over the kernel, this was for
> the SERIAL_CORE drivers only at the moment.

My initial plan when moving some files to drivers/tty was to have a separate
directory for the non-SERIAL_CORE serial drivers next to drivers/tty/serial.

I would still prefer this solution, but I think we never agreed on a good
name for that directory. IIRC, I had suggested drivers/tty/legacy believing
that SERIAL_CORE was the modern way to implement a serial driver, but that
turned out not to be true and at lease one of these (bfin_jtag) is not
a legacy driver in practice.

Maybe drivers/tty/hw? I think that one has been suggested before, too.
I don't remember any argument against it and I think it would be nice
to separate the core implementation from actual device drivers.

	Arnd
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