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 <tj@kernel.org>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 3d9ba92..519d687 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -164,8 +164,8 @@
#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.