cpumask: remove unused cpu_mask_all

It's only defined for NR_CPUS > BITS_PER_LONG; cpu_all_mask is always
defined (and const).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/linux/cpumask.h |    3 ---
 init/main.c             |    5 -----
 2 files changed, 8 deletions(-)

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -331,9 +331,6 @@ static inline const struct cpumask *get_
 	[0 ... BITS_TO_LONGS(NR_CPUS)-2] = ~0UL,			\
 	[BITS_TO_LONGS(NR_CPUS)-1] = CPU_MASK_LAST_WORD			\
 } }
-
-/* cpu_mask_all is in init/main.c */
-extern cpumask_t cpu_mask_all;
 
 #endif
 
diff --git a/init/main.c b/init/main.c
--- a/init/main.c
+++ b/init/main.c
@@ -358,11 +358,6 @@ static inline void smp_prepare_cpus(unsi
 static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
-
-#if NR_CPUS > BITS_PER_LONG
-cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL;
-EXPORT_SYMBOL(cpu_mask_all);
-#endif
 
 /* Setup number of possible processor ids */
 int nr_cpu_ids __read_mostly = NR_CPUS;