[PATCH 6/9] of: remove unused extern reference to devtree_lock

[Grant Likely]

Neither the powerpc nor the microblaze code use devtree_lock anymore.
Remove the extern reference.

Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
---

 arch/microblaze/include/asm/prom.h |    2 --
 arch/powerpc/kernel/prom.c         |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index ddc5c57..8b1ebd3 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -30,8 +30,6 @@ extern struct device_node *of_chosen;
 
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
 /* Other Prototypes */
 extern int early_uartlite_console(void);
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 5bbbdb2..4869c93 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -67,8 +67,6 @@ int __initdata iommu_force_on;
 unsigned long tce_alloc_start, tce_alloc_end;
 #endif
 
-extern rwlock_t devtree_lock;	/* temporary while merging */
-
 /* export that to outside world */
 struct device_node *of_chosen;
 

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