From: Tejun Heo <tj@kernel.org>
Date: Wed, 12 May 2010 10:10:39 +0000 (+0200)
Subject: ia64: add sparse annotation to __ia64_per_cpu_var()
X-Git-Tag: v2.6.35-rc1~486^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=308eb7add8adaca8088c28a3f7610069b70d1ad6;p=profile%2Fcommon%2Fkernel-common.git

ia64: add sparse annotation to __ia64_per_cpu_var()

ia64 has its own optimized percpu accessor - __ia64_per_cpu_var().
Add percpu sparse annotations to it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
---

diff --git a/arch/ia64/include/asm/percpu.h b/arch/ia64/include/asm/percpu.h
index f7c00a5..1bd4082 100644
--- a/arch/ia64/include/asm/percpu.h
+++ b/arch/ia64/include/asm/percpu.h
@@ -39,7 +39,10 @@ extern void *per_cpu_init(void);
  * On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly
  * more efficient.
  */
-#define __ia64_per_cpu_var(var)	var
+#define __ia64_per_cpu_var(var) (*({					\
+	__verify_pcpu_ptr(&(var));					\
+	((typeof(var) __kernel __force *)&(var));			\
+}))
 
 #include <asm-generic/percpu.h>