linux-kernel - Re: rtc-ds1742.c should use resource_size

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Date:	Fri, 14 Sep 2007 12:20:37 -0500
From:	Josh Boyer <jwboyer@...ux.vnet.ibm.com>
To:	David Gibson <david@...son.dropbear.id.au>
Cc:	Andrew Morton <akpm@...l.org>,
	Atsushi Nemoto <anemo@....ocn.ne.jp>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com
Subject: Re: rtc-ds1742.c should use resource_size_t for base address

On Fri, 14 Sep 2007 15:54:27 +1000
David Gibson <david@...son.dropbear.id.au> wrote:

> Currently the rtc driver, rtc-ds1742.c uses an unsigned long to store
> the base mmio address of the NVRAM/RTC.  This breaks on systems like
> PowerPC 440, which is a 32-bit core with 36-bit physical addresses: IO
> on the system, including the RTC, is typically above the 4GB point,
> and cannot fit into an unsigned long.
> 
> This patch fixes the problem by replacing the unsigned long with a
> resource_size_t.  Tested on Ebony (PPC440) (with additional patches to
> instantiate the ds1742 platform device appropriately).

Where would those additional patches be? :)

josh
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