linux-kernel - Re: [PATCH] Only show RESOURCES_64BIT on relevant architectures

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Date:	Sun, 28 Oct 2007 18:09:49 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	kyle@...artin.ca
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Only show RESOURCES_64BIT on relevant architectures

From: Kyle McMartin <kyle@...artin.ca>
Date: Sun, 28 Oct 2007 16:15:49 -0400

> To quote lolcats: CONFIG_RESOURCES_64BIT DO NOT WANT!
> 
> I *think* I have the logic of this right... Anyway, I was annoyed by
> having to do the bloody ugly casts to unsigned long long in
> arch-specific code. As near as I can tell, we only want this selectable
> in the case of PAE on x86, and some random PPC and MIPS embedded boards.
> 
> For everyone else, it should be whatever the value of 64BIT is.
> 
> And I can be happy and continue using unsigned long and going about my
> merry business.
> 
> Signed-off-by: Kyle McMartin <kyle@...artin.ca>

32-bit sparc has 36-bit physical addresses and thus needs
64-bit resources too
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