[PATCH 4/5] drm/client: Remove unused drm_client_framebuffer_flush

[linux@treblig.org]

From: "Dr. David Alan Gilbert" <linux@treblig.org>

drm_client_framebuffer_flush() was explicitly added in 2020
by
commit c9c03e3cf072 ("drm/client: Add drm_client_framebuffer_flush()")
but has never been used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
---
 drivers/gpu/drm/drm_client.c | 33 ---------------------------------
 include/drm/drm_client.h     |  1 -
 2 files changed, 34 deletions(-)

diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index bfedcbf516db..5d10ad3c2ca5 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -552,39 +552,6 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer)
 }
 EXPORT_SYMBOL(drm_client_framebuffer_delete);
 
-/**
- * drm_client_framebuffer_flush - Manually flush client framebuffer
- * @buffer: DRM client buffer (can be NULL)
- * @rect: Damage rectangle (if NULL flushes all)
- *
- * This calls &drm_framebuffer_funcs->dirty (if present) to flush buffer changes
- * for drivers that need it.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect)
-{
-	if (!buffer || !buffer->fb || !buffer->fb->funcs->dirty)
-		return 0;
-
-	if (rect) {
-		struct drm_clip_rect clip = {
-			.x1 = rect->x1,
-			.y1 = rect->y1,
-			.x2 = rect->x2,
-			.y2 = rect->y2,
-		};
-
-		return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file,
-						0, 0, &clip, 1);
-	}
-
-	return buffer->fb->funcs->dirty(buffer->fb, buffer->client->file,
-					0, 0, NULL, 0);
-}
-EXPORT_SYMBOL(drm_client_framebuffer_flush);
-
 #ifdef CONFIG_DEBUG_FS
 static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data)
 {
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index bc0e66f9c425..560aae47e06d 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -165,7 +165,6 @@ struct drm_client_buffer {
 struct drm_client_buffer *
 drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format);
 void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
-int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect);
 int drm_client_buffer_vmap_local(struct drm_client_buffer *buffer,
 				 struct iosys_map *map_copy);
 void drm_client_buffer_vunmap_local(struct drm_client_buffer *buffer);
-- 
2.47.0