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

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Message-ID: <20071028201549.GA23138@fattire.cabal.ca>
Date:	Sun, 28 Oct 2007 16:15:49 -0400
From:	Kyle McMartin <kyle@...artin.ca>
To:	linux-arch@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] Only show RESOURCES_64BIT on relevant architectures

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>
---
diff --git a/mm/Kconfig b/mm/Kconfig
index c070ec0..c25a838 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -172,6 +172,7 @@ config MIGRATION

 config RESOURCES_64BIT
 	bool "64 bit Memory and IO resources (EXPERIMENTAL)" if (!64BIT && EXPERIMENTAL)
+	depends on (MIPS || PPC32 || X86_PAE) || 64BIT
 	default 64BIT
 	help
 	  This option allows memory and IO resources to be 64 bit.
-
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