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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-09 18:08:37 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-09 18:08:37 -0500
commita90fcf311199b0199e94e78fca899abf2aeb852b (patch)
tree0b916c9f11006d4452eefa2013a4c63a9ed4d43f /include
parentc5b875e354a54e2b5ba24eecae69bf94e025edd5 (diff)
parent6f78a19702574008bbd333237380fa85be1c9e5d (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Use "is_power_of_2" macro for simplicity. [SPARC]: Remove duplicate includes.
Diffstat (limited to 'include')
-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 @@
8#include <linux/spinlock.h> 8#include <linux/spinlock.h>
9#include <linux/completion.h> 9#include <linux/completion.h>
10#include <linux/list.h> 10#include <linux/list.h>
11#include <linux/log2.h>
11 12
12#include <asm/ldc.h> 13#include <asm/ldc.h>
13#include <asm/mdesc.h> 14#include <asm/mdesc.h>
@@ -257,8 +258,7 @@ static inline void *vio_dring_entry(struct vio_dring_state *dr,
257static inline u32 vio_dring_avail(struct vio_dring_state *dr, 258static inline u32 vio_dring_avail(struct vio_dring_state *dr,
258 unsigned int ring_size) 259 unsigned int ring_size)
259{ 260{
260 /* Ensure build-time power-of-2. */ 261 BUILD_BUG_ON(!is_power_of_2(ring_size));
261 BUILD_BUG_ON(ring_size & (ring_size - 1));
262 262
263 return (dr->pending - 263 return (dr->pending -
264 ((dr->prod - dr->cons) & (ring_size - 1))); 264 ((dr->prod - dr->cons) & (ring_size - 1)));