linux-kernel - [PATCH] drm: gud: replace WARN_ON/WARN_ON

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Message-ID: <20250914155308.2144-1-rubenru09@aol.com>
Date: Sun, 14 Sep 2025 16:50:52 +0100
From: Ruben Wauters <rubenru09@....com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>
Cc: Ruben Wauters <rubenru09@....com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm: gud: replace WARN_ON/WARN_ON_ONCE with drm versions

GUD is a drm driver, and therefore should use the drm versions of
WARN_ON and WARN_ON_ONCE. This patch replaces all instances of WARN_ON
and WARN_ON_ONCE with drm_WARN_ON and drm_WARN_ON_ONCE.

Signed-off-by: Ruben Wauters <rubenru09@....com>
---
 drivers/gpu/drm/gud/gud_connector.c |  8 ++++----
 drivers/gpu/drm/gud/gud_pipe.c      | 10 +++++-----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/gud/gud_connector.c b/drivers/gpu/drm/gud/gud_connector.c
index 4a15695fa933..62e349b06dbe 100644
--- a/drivers/gpu/drm/gud/gud_connector.c
+++ b/drivers/gpu/drm/gud/gud_connector.c
@@ -561,11 +561,11 @@ static int gud_connector_add_properties(struct gud_device *gdrm, struct gud_conn
 			continue; /* not a DRM property */
 
 		property = gud_connector_property_lookup(connector, prop);
-		if (WARN_ON(IS_ERR(property)))
+		if (drm_WARN_ON(drm, IS_ERR(property)))
 			continue;
 
 		state_val = gud_connector_tv_state_val(prop, &gconn->initial_tv_state);
-		if (WARN_ON(IS_ERR(state_val)))
+		if (drm_WARN_ON(drm, IS_ERR(state_val)))
 			continue;
 
 		*state_val = val;
@@ -593,7 +593,7 @@ int gud_connector_fill_properties(struct drm_connector_state *connector_state,
 			unsigned int *state_val;
 
 			state_val = gud_connector_tv_state_val(prop, &connector_state->tv);
-			if (WARN_ON_ONCE(IS_ERR(state_val)))
+			if (drm_WARN_ON_ONCE(connector_state->connector->dev, state_val))
 				return PTR_ERR(state_val);
 
 			val = *state_val;
@@ -667,7 +667,7 @@ static int gud_connector_create(struct gud_device *gdrm, unsigned int index,
 		return ret;
 	}
 
-	if (WARN_ON(connector->index != index))
+	if (drm_WARN_ON(drm, connector->index != index))
 		return -EINVAL;
 
 	if (flags & GUD_CONNECTOR_FLAGS_POLL_STATUS)
diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c
index 54d9aa9998e5..3a208e956dff 100644
--- a/drivers/gpu/drm/gud/gud_pipe.c
+++ b/drivers/gpu/drm/gud/gud_pipe.c
@@ -61,7 +61,7 @@ static size_t gud_xrgb8888_to_r124(u8 *dst, const struct drm_format_info *format
 	size_t len;
 	void *buf;
 
-	WARN_ON_ONCE(format->char_per_block[0] != 1);
+	drm_WARN_ON_ONCE(fb->dev, format->char_per_block[0] != 1);
 
 	/* Start on a byte boundary */
 	rect->x1 = ALIGN_DOWN(rect->x1, block_width);
@@ -138,7 +138,7 @@ static size_t gud_xrgb8888_to_color(u8 *dst, const struct drm_format_info *forma
 				pix = ((r >> 7) << 2) | ((g >> 7) << 1) | (b >> 7);
 				break;
 			default:
-				WARN_ON_ONCE(1);
+				drm_WARN_ON_ONCE(fb->dev, 1);
 				return len;
 			}
 
@@ -527,7 +527,7 @@ int gud_plane_atomic_check(struct drm_plane *plane,
 		drm_connector_list_iter_end(&conn_iter);
 	}
 
-	if (WARN_ON_ONCE(!connector_state))
+	if (drm_WARN_ON_ONCE(plane->dev, !connector_state))
 		return -ENOENT;
 
 	len = struct_size(req, properties,
@@ -539,7 +539,7 @@ int gud_plane_atomic_check(struct drm_plane *plane,
 	gud_from_display_mode(&req->mode, mode);
 
 	req->format = gud_from_fourcc(format->format);
-	if (WARN_ON_ONCE(!req->format)) {
+	if (drm_WARN_ON_ONCE(plane->dev, !req->format)) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -561,7 +561,7 @@ int gud_plane_atomic_check(struct drm_plane *plane,
 			val = new_plane_state->rotation;
 			break;
 		default:
-			WARN_ON_ONCE(1);
+			drm_WARN_ON_ONCE(plane->dev, 1);
 			ret = -EINVAL;
 			goto out;
 		}
-- 
2.49.1