drm/radeon: Use hweight32
Use hweight32 instead of counting for each bit
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index cda280d..169ecc9 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1424,13 +1424,7 @@
int r600_count_pipe_bits(uint32_t val)
{
- int i, ret = 0;
-
- for (i = 0; i < 32; i++) {
- ret += val & 1;
- val >>= 1;
- }
- return ret;
+ return hweight32(val);
}
static void r600_gpu_init(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 2514123..be85f75 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -721,12 +721,7 @@
static int r600_count_pipe_bits(uint32_t val)
{
- int i, ret = 0;
- for (i = 0; i < 32; i++) {
- ret += val & 1;
- val >>= 1;
- }
- return ret;
+ return hweight32(val);
}
static void r600_gfx_init(struct drm_device *dev,