linux-kernel - Re: [PATCH] Allocate pnp resources dynamically via krealloc

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Message-ID: <479DEE10.6060203@keyaccess.nl>
Date:	Mon, 28 Jan 2008 16:00:32 +0100
From:	Rene Herman <rene.herman@...access.nl>
To:	trenn@...e.de
CC:	Pekka Enberg <penberg@...helsinki.fi>, linux-acpi@...r.kernel.org,
	Len Brown <lenb@...nel.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Jean Delvare <khali@...ux-fr.org>,
	Jaroslav Kysela <perex@...ex.cz>
Subject: Re: [PATCH] Allocate pnp resources dynamically via krealloc	-	working
 version

On 28-01-08 15:21, Thomas Renninger wrote:

> I think I know what is going on.
> While pnpbios and pnpacpi theoretically do not have limits, isapnp has
> spec restrictions (AFAIK, I have not read this up, but taken over from
> previous implementation...).
> Therefore in isapnp I wanted to stay with:
> #define PNP_MAX_PORT            8
> #define PNP_MAX_MEM             4
> #define PNP_MAX_IRQ             2
> #define PNP_MAX_DMA             2
> but I have forgotten to malloc one portion for each at init time, or
> even better one portion as soon as one is needed.

Yup.

> As said, isapnp is more or less untested, thanks a lot for trying out.
> I will send an updated version soon.

I"m not sure of the flow of things by the way but if it makes better/nicer 
code to just pretend that ISAPnP is also unlimited then I'd say to simply do 
so. ISAPnP is getting obsolete anyway, not anything to optimise for...

Rene.
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