[PATCH 3/4] proc: unify PROC_DEVICETREE config

[Andres Salomon <dilinger@queued.net>]

Microblaze and PPC both use PROC_DEVICETREE, and OLPC will as well.. put
the Kconfig option into fs/ rather than in arch/*/Kconfig.

Signed-off-by: Andres Salomon <dilinger@queued.net>
---
 arch/microblaze/Kconfig |    8 --------
 arch/powerpc/Kconfig    |    8 --------
 fs/proc/Kconfig         |    8 ++++++++
 3 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 76818f9..b66c962 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -128,14 +128,6 @@ config OF
 	def_bool y
 	select OF_FLATTREE
 
-config PROC_DEVICETREE
-	bool "Support for device tree in /proc"
-	depends on PROC_FS
-	help
-	  This option adds a device-tree directory under /proc which contains
-	  an image of the device tree that the kernel copies from Open
-	  Firmware or other boot firmware. If unsure, say Y here.
-
 endmenu
 
 menu "Advanced setup"
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 328774b..8a56e8b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -578,14 +578,6 @@ config SCHED_SMT
 	  when dealing with POWER5 cpus at a cost of slightly increased
 	  overhead in some places. If unsure say N here.
 
-config PROC_DEVICETREE
-	bool "Support for device tree in /proc"
-	depends on PROC_FS
-	help
-	  This option adds a device-tree directory under /proc which contains
-	  an image of the device tree that the kernel copies from Open
-	  Firmware or other boot firmware. If unsure, say Y here.
-
 config CMDLINE_BOOL
 	bool "Default bootloader kernel arguments"
 
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 50f8f06..858a859 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -39,6 +39,14 @@ config PROC_VMCORE
         help
         Exports the dump image of crashed kernel in ELF format.
 
+config PROC_DEVICETREE
+	bool "Support for device tree in /proc"
+	depends on PROC_FS && (PPC || MICROBLAZE)
+	help
+	  This option adds a device-tree directory under /proc which contains
+	  an image of the device tree that the kernel copies from Open
+	  Firmware or other boot firmware. If unsure, say Y here.
+
 config PROC_SYSCTL
 	bool "Sysctl support (/proc/sys)" if EMBEDDED
 	depends on PROC_FS
-- 
1.5.6.5