Use container_of() instead of type casting so that it keeps working even if base is moved inside the drm_writeback_connector struct.
Signed-off-by: Boris Brezillon boris.brezillon@bootlin.com Reviewed-by: Liviu Dudau liviu.dudau@arm.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- Changes in v4: - None
Changes in v3: - Add Daniel's and Liviu's R-b
Changes in v2: - New patch --- drivers/gpu/drm/drm_atomic.c | 4 +++- include/drm/drm_writeback.h | 6 ++++++ 2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 178842380f75..6ea20d5dee66 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -2423,6 +2423,7 @@ static int prepare_signaling(struct drm_device *dev, }
for_each_new_connector_in_state(state, conn, conn_state, i) { + struct drm_writeback_connector *wb_conn; struct drm_writeback_job *job; struct drm_out_fence_state *f; struct dma_fence *fence; @@ -2446,7 +2447,8 @@ static int prepare_signaling(struct drm_device *dev, f[*num_fences].out_fence_ptr = fence_ptr; *fence_state = f;
- fence = drm_writeback_get_out_fence((struct drm_writeback_connector *)conn); + wb_conn = drm_connector_to_writeback(conn); + fence = drm_writeback_get_out_fence(wb_conn); if (!fence) return -ENOMEM;
diff --git a/include/drm/drm_writeback.h b/include/drm/drm_writeback.h index a10fe556dfd4..23df9d463003 100644 --- a/include/drm/drm_writeback.h +++ b/include/drm/drm_writeback.h @@ -110,6 +110,12 @@ struct drm_writeback_job { struct dma_fence *out_fence; };
+static inline struct drm_writeback_connector * +drm_connector_to_writeback(struct drm_connector *connector) +{ + return container_of(connector, struct drm_writeback_connector, base); +} + int drm_writeback_connector_init(struct drm_device *dev, struct drm_writeback_connector *wb_connector, const struct drm_connector_funcs *con_funcs,