diff options
| author | Robert Noland <rnoland@2hip.net> | 2008-10-03 13:56:50 -0400 |
|---|---|---|
| committer | Robert Noland <rnoland@2hip.net> | 2008-10-03 13:56:50 -0400 |
| commit | 4c92abfa8d0b9f2ab14e6b915bdffd47fd2e2474 (patch) | |
| tree | 3e4e02e5c3a507ec9b249e9a68334e8c72c4cb7c /bsd-core | |
| parent | 81952c7dd18d8fc4617fe4cb761fdf830de5244f (diff) | |
[FreeBSD] Do a bit of optimization on drm_order()
Diffstat (limited to 'bsd-core')
| -rw-r--r-- | bsd-core/drm_bufs.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/bsd-core/drm_bufs.c b/bsd-core/drm_bufs.c index c9b5dc4e..60f57cfd 100644 --- a/bsd-core/drm_bufs.c +++ b/bsd-core/drm_bufs.c @@ -1099,11 +1099,12 @@ int drm_mapbufs(struct drm_device *dev, void *data, struct drm_file *file_priv) int drm_order(unsigned long size) { int order; - unsigned long tmp; - for (order = 0, tmp = size; tmp >>= 1; ++order); + if (size == 0) + return 0; - if (size & ~(1 << order)) + order = ffsl(size) - 1; + if (size & ~(1ul << order)) ++order; return order; |