linux-kernel - Re: [PATCH] kernel/resource.c: fix muxed resource handling in __request

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Date:	Mon, 22 Feb 2016 12:46:09 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Alan Cox <alan@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Vincent Pelletier <plr.vincent@...il.com>,
	Simon Guinot <simon.guinot@...uanux.org>,
	Giel van Schijndel <me@...tis.eu>,
	linux-gpio@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Vincent Donnefort <vdonnefort@...il.com>,
	Yoann Sculo <yoann@...lo.fr>
Subject: Re: [PATCH] kernel/resource.c: fix muxed resource handling in
 __request_region()

On 02/22/2016 05:49 AM, Alan Cox wrote:
>> we have some good alternatives in the form of bus and platform
>> drivers that
>> can manage the appropriate serialization and keep things from
>> stomping
>> on one another.
> 
> It's not used much, especially nowdays. The use case is basically multi
> I/O chips on the ISA/LPC bus with magic shared config register ports.
> 
> We have sufficiently few of those we could give muxed the boot and
> special case them if preferred.

Ah that's right, now I remember the context.  So where should we go from here then?  Just leave the ugly fix in or hack on old stuff and hope not to break it?

Jesse