Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)
Signed-off-by: vignesh babu <vignesh.babu@xxxxxxxxx>
---
diff --git a/include/asm-sparc64/vio.h b/include/asm-sparc64/vio.h
index f7417e9..2cc65a9 100644
--- a/include/asm-sparc64/vio.h
+++ b/include/asm-sparc64/vio.h
@@ -8,6 +8,7 @@
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/list.h>
+#include <linux/log2.h>
#include <asm/ldc.h>
#include <asm/mdesc.h>
@@ -258,7 +259,7 @@ static inline u32 vio_dring_avail(struct vio_dring_state *dr,
unsigned int ring_size)
{
/* Ensure build-time power-of-2. */
- BUILD_BUG_ON(ring_size & (ring_size - 1));
+ BUILD_BUG_ON(!is_power_of_2(ring_size));
return (dr->pending -
((dr->prod - dr->cons) & (ring_size - 1)));
--
Vignesh Babu BM
_____________________________________________________________
"Why is it that every time I'm with you, makes me believe in magic?"
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