[PATCH] CONFIG_64BIT

This adds CONFIG_64BIT to allow us to disable non-64-bit safe drivers on
64-bit platforms and converts the I2O driver to use it.

arch/alpha/Kconfig

@@ -11,6 +11,9 @@ config ALPHA
 	  now Hewlett-Packard.  The Alpha Linux project has a home page at
 	  <http://www.alphalinux.org/>.
 
+config 64BIT
+	def_bool y
+
 config MMU
 	bool
 	default y

arch/ia64/Kconfig

@@ -18,6 +18,9 @@ config IA64
 	  page at <http://www.linuxia64.org/> and a mailing list at
 	  linux-ia64@linuxia64.org.
 
+config 64BIT
+	def_bool y
+
 config MMU
 	bool
 	default y

arch/mips/Kconfig

@@ -11,6 +11,9 @@ config MIPS64
 	  64-bit processing, otherwise say N.  You must say Y for kernels for
 	  SGI IP27 (Origin 200 and 2000).  If in doubt say N.
 
+config 64BIT
+	def_bool MIPS64
+
 config MIPS32
 	bool
 	depends on MIPS64 = 'n'

arch/parisc/Kconfig

@@ -103,6 +103,9 @@ config PARISC64
 	  enable this option otherwise. The 64bit kernel is significantly bigger
 	  and slower than the 32bit one.
 
+config 64BIT
+	def_bool PARISC64
+
 config PDC_NARROW
 	bool "32-bit firmware"
 	depends on PARISC64

arch/ppc64/Kconfig

@@ -3,6 +3,9 @@
 # see Documentation/kbuild/kconfig-language.txt.
 #
 
+config 64BIT
+	def_bool y
+
 config MMU
 	bool
 	default y

arch/s390/Kconfig

@@ -40,6 +40,9 @@ config ARCH_S390X
 	  Select this option if you have a 64 bit IBM zSeries machine
 	  and want to use the 64 bit addressing mode.
 
+config 64BIT
+	def_bool ARCH_S390X
+
 config ARCH_S390_31
 	bool
 	depends on ARCH_S390X = 'n'

arch/sparc64/Kconfig

@@ -5,6 +5,9 @@
 
 mainmenu "Linux/UltraSPARC Kernel Configuration"
 
+config 64BIT
+	def_bool y
+
 config MMU
 	bool
 	default y

arch/x86_64/Kconfig

@@ -16,6 +16,9 @@ config X86_64
 	  Port to the x86-64 architecture. x86-64 is a 64-bit extension to the
 	  classical 32-bit x86 architecture. For details see http://www.x86-64.org
 
+config 64BIT
+	def_bool y
+
 config X86
 	bool
 	default y

drivers/scsi/Kconfig

@@ -366,7 +366,7 @@ source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
 # All the I2O code and drivers do not seem to be 64bit safe.
 config SCSI_DPT_I2O
 	tristate "Adaptec I2O RAID support "
-	depends on !X86_64 && SCSI && BROKEN
+	depends on !64BIT && SCSI && BROKEN
 	help
 	  This driver supports all of Adaptec's I2O based RAID controllers as 
 	  well as the DPT SmartRaid V cards.  This is an Adaptec maintained