linux-kernel - Re: [PATCH 20/26] 8250: Serial driver changes to support future Cavium OCTEON serial patches.

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Date:	Thu, 20 Nov 2008 20:02:12 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	David Daney <ddaney@...iumnetworks.com>
Cc:	linux-mips@...ux-mips.org, linux-serial@...r.kernel.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	David Daney <ddaney@...iumnetworks.com>,
	Tomaso Paoletti <tpaoletti@...iumnetworks.com>
Subject: Re: [PATCH 20/26] 8250: Serial driver changes to support future
 Cavium OCTEON serial patches.

On Tue, 18 Nov 2008 14:24:14 -0800
David Daney <ddaney@...iumnetworks.com> wrote:

> In order to use Cavium OCTEON specific serial i/o drivers, we first
> patch the 8250 driver to use replaceable I/O functions.  Compatible
> I/O functions are added for existing iotypeS.
> 
> An added benefit of this change is that it makes it easy to factor
> some of the existing special cases out to board/SOC specific support
> code.
> 
> The alternative is to load up 8250.c with a bunch of OCTEON specific
> iotype code and bug work-arounds.

Neither are pretty but this looks the better option I agree. Only niggle
is the use of "_fn" - Linux generally doesn't put types into variable
names.
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