linux-kernel - Re: [PATCH] Stop ARM boards crashing when CUPS is loaded

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Message-id: <miltonm-arm-parport-1@bga.com>
Date:	Fri, 16 Jul 2010 11:23:55 -0500
From:	Milton Miller <miltonm@....com>
To:	Lee Jones <lee.jones@...onical.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Russell King <rmk@....linux.org.uk>,
	Martin Michlmayr <tbm@...ius.com>,
	Woody Suwalski <terraluna977@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] Stop ARM boards crashing when CUPS is loaded -
	2.6.35-rc5

On Fri Jul 16 2010 about 05:33:06 EST,  Lee Jones wrote:
> > The best solution is probably for the parport code to go through a
> > modernisation cycle like the serial code did, essentially using
> > platform devices to pass the base addresses. This would make the
> > driver more portable, and eliminates this problem entirely (because
> > platforms which don't have parports won't register the platform device(s)
> > necessary for parport to even probe illegal addresses.)
> 
> This sounds brilliant - when are you going to start? </kidding>

It has a long time ago ...

drivers/parport/parport_pc.c calls parport_pc_find_nonpci_ports,
which is in asm/parport.h

> 
> In all seriousness, do you think anyone is likely to undertake this
> work anytime soon? I am seeing this problem in a distribution which
> is due for release in October. I have no problem implementing a config
> change in the meantime, but as you say, a more _correct_ and portable
> solution should be sought.

Why not replace the arm asm/parport.h with asm-generic/parport.h which
already has a check for CONFIG_ISA, which appears to only be selected
on a few ARM platforms?

milton
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