[PATCH v2 2/5] drm/solomon: Use drm_WARN_ON_ONCE instead of WARN_ON

[Iker Pedrosa]

To prevent log spam, convert all instances to the DRM-specific
drm_WARN_ON_ONCE() macro. This ensures that a warning is emitted only
the first time the condition is met for a given device instance, which
is the desired behavior within the graphics subsystem.

Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Iker Pedrosa <ikerpedrosam@xxxxxxxxx>
---
 drivers/gpu/drm/solomon/ssd130x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
index d98015d6d28505d028ee958831e3cefdb8a9c397..5b0d5bbc7f9fabd8430226e88cdee9e22ac7ad96 100644
--- a/drivers/gpu/drm/solomon/ssd130x.c
+++ b/drivers/gpu/drm/solomon/ssd130x.c
@@ -1393,7 +1393,7 @@ static void ssd130x_primary_plane_reset(struct drm_plane *plane)
 {
 	struct ssd130x_plane_state *ssd130x_state;
 
-	WARN_ON(plane->state);
+	drm_WARN_ON_ONCE(plane->dev, plane->state);
 
 	ssd130x_state = kzalloc(sizeof(*ssd130x_state), GFP_KERNEL);
 	if (!ssd130x_state)
@@ -1408,7 +1408,7 @@ static struct drm_plane_state *ssd130x_primary_plane_duplicate_state(struct drm_
 	struct ssd130x_plane_state *old_ssd130x_state;
 	struct ssd130x_plane_state *ssd130x_state;
 
-	if (WARN_ON(!plane->state))
+	if (drm_WARN_ON_ONCE(plane->dev, !plane->state))
 		return NULL;
 
 	old_ssd130x_state = to_ssd130x_plane_state(plane->state);
@@ -1558,7 +1558,7 @@ static void ssd130x_crtc_reset(struct drm_crtc *crtc)
 {
 	struct ssd130x_crtc_state *ssd130x_state;
 
-	WARN_ON(crtc->state);
+	drm_WARN_ON_ONCE(crtc->dev, crtc->state);
 
 	ssd130x_state = kzalloc(sizeof(*ssd130x_state), GFP_KERNEL);
 	if (!ssd130x_state)
@@ -1572,7 +1572,7 @@ static struct drm_crtc_state *ssd130x_crtc_duplicate_state(struct drm_crtc *crtc
 	struct ssd130x_crtc_state *old_ssd130x_state;
 	struct ssd130x_crtc_state *ssd130x_state;
 
-	if (WARN_ON(!crtc->state))
+	if (drm_WARN_ON_ONCE(crtc->dev, !crtc->state))
 		return NULL;
 
 	old_ssd130x_state = to_ssd130x_crtc_state(crtc->state);

-- 
2.51.0