use outdise defined variable can reduce the recaculate of the
count of planes, crtcs and connectors.
Signed-off-by: John Hunter <zhjwpku@xxxxxxxxx>
---
drivers/gpu/drm/drm_atomic_helper.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 39369ee..20376e6 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1301,8 +1301,11 @@ void drm_atomic_helper_swap_state(struct drm_device *dev,
struct drm_atomic_state *state)
{
int i;
+ int nconnectors = dev->mode_config.num_connector;
+ int ncrtcs = dev->mode_config.num_crtc;
+ int nplanes = dev->mode_config.num_total_plane;
- for (i = 0; i < dev->mode_config.num_connector; i++) {
+ for (i = 0; i < nconnectors; i++) {
struct drm_connector *connector = state->connectors[i];
if (!connector)
@@ -1313,7 +1316,7 @@ void drm_atomic_helper_swap_state(struct drm_device *dev,
connector->state->state = NULL;
}
- for (i = 0; i < dev->mode_config.num_crtc; i++) {
+ for (i = 0; i < ncrtcs; i++) {
struct drm_crtc *crtc = state->crtcs[i];
if (!crtc)
@@ -1324,7 +1327,7 @@ void drm_atomic_helper_swap_state(struct drm_device *dev,
crtc->state->state = NULL;
}
- for (i = 0; i < dev->mode_config.num_total_plane; i++) {
+ for (i = 0; i < nplanes; i++) {
struct drm_plane *plane = state->planes[i];
if (!plane)
--
1.9.1
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