percpu: make alloc_percpu() handle array types

alloc_percpu() couldn't handle array types like "int [100]" due to the way return type was casted. Fix it by using typeof() instead. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Frederic Weisbecker <[email protected]> Reviewed-by: Christoph Lameter <[email protected]>
chewitt · Oct 29, 2009 · 64ef291 · 64ef291
1 parent 3f04ba8
commit 64ef291
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
@@ -164,8 +164,8 @@ static inline void *pcpu_lpage_remapped(void *kaddr)
 
 #endif /* CONFIG_SMP */
 
-#define alloc_percpu(type)	(type *)__alloc_percpu(sizeof(type), \
-						       __alignof__(type))
+#define alloc_percpu(type)	\
+	(typeof(type) *)__alloc_percpu(sizeof(type), __alignof__(type))
 
 /*
  * Optional methods for optimized non-lvalue per-cpu variable access.