From: Chris Snook <[email protected]>
Use volatile consistently in atomic.h on xtensa.
Signed-off-by: Chris Snook <[email protected]>
--- linux-2.6.23-rc3-orig/include/asm-xtensa/atomic.h 2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.23-rc3/include/asm-xtensa/atomic.h 2007-08-13 06:31:58.000000000 -0400
@@ -15,7 +15,7 @@
#include <linux/stringify.h>
-typedef struct { volatile int counter; } atomic_t;
+typedef struct { int counter; } atomic_t;
#ifdef __KERNEL__
#include <asm/processor.h>
@@ -47,7 +47,10 @@ typedef struct { volatile int counter; }
*
* Atomically reads the value of @v.
*/
-#define atomic_read(v) ((v)->counter)
+static inline int atomic_read(atomic_t *v)
+{
+ return *(volatile int *)&v->counter;
+}
/**
* atomic_set - set atomic variable
@@ -56,7 +59,10 @@ typedef struct { volatile int counter; }
*
* Atomically sets the value of @v to @i.
*/
-#define atomic_set(v,i) ((v)->counter = (i))
+static inline void atomic_set(atomic_t *v, int i)
+{
+ *(volatile int *)&v->counter = i;
+}
/**
* atomic_add - add integer to atomic variable
-
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