X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=include%2Fasm-sparc64%2Fvio.h;h=d4de32f0f8afdb849495f29aff26f3c0f004f7d3;hb=90888816ba1bf1c4eff1e7e4220c1afc802f0fd3;hp=f7417e91b1706bb79c438446b8b941e5ddb7c9ef;hpb=939ab20152390c8ccccfa6fac0830405ca91d903;p=cascardo%2Flinux.git

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)));