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authorRobert P. J. Day <rpjday@crashcourse.ca>2007-11-07 02:24:33 -0800
committerDavid S. Miller <davem@davemloft.net>2007-11-07 02:24:33 -0800
commit6f78a19702574008bbd333237380fa85be1c9e5d (patch)
tree4f25e2fa7e46d630dd70f5be341d27540cb30126 /include/asm-sparc64/vio.h
parent9c969ffe1f1bb349e118a299f76f6bb0bbd6b05a (diff)
[SPARC64]: Use "is_power_of_2" macro for simplicity.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/vio.h')
-rw-r--r--include/asm-sparc64/vio.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-sparc64/vio.h b/include/asm-sparc64/vio.h
index f7417e91b170..d4de32f0f8af 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>
@@ -257,8 +258,7 @@ static inline void *vio_dring_entry(struct vio_dring_state *dr,
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)));