[PATCH] drm: Don't export the drm_gem_dumb_destroy() function

[Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>]

The drm_gem_dumb_destroy() isn't used in drivers, don't export it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
Changes since v1:

- Move function prototype from drm_gem.h to drm_internal.h
- Drop function documentation
- Replace uint32_t with u32
---
 drivers/gpu/drm/drm_dumb_buffers.c |  8 +++++---
 drivers/gpu/drm/drm_gem.c          | 12 +-----------
 drivers/gpu/drm/drm_internal.h     |  3 +++
 include/drm/drm_gem.h              |  3 ---
 4 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c
index d18a740fe0f1..ad17fa21cebb 100644
--- a/drivers/gpu/drm/drm_dumb_buffers.c
+++ b/drivers/gpu/drm/drm_dumb_buffers.c
@@ -29,6 +29,7 @@
 #include <drm/drm_mode.h>
 
 #include "drm_crtc_internal.h"
+#include "drm_internal.h"
 
 /**
  * DOC: overview
@@ -46,9 +47,10 @@
  * KMS frame buffers.
  *
  * To support dumb objects drivers must implement the &drm_driver.dumb_create
- * operation. &drm_driver.dumb_destroy defaults to drm_gem_dumb_destroy() if
- * not set and &drm_driver.dumb_map_offset defaults to
- * drm_gem_dumb_map_offset(). See the callbacks for further details.
+ * and &drm_driver.dumb_map_offset operations (the latter defaults to
+ * drm_gem_dumb_map_offset() if not set). Drivers that don't use GEM handles
+ * additionally need to implement the &drm_driver.dumb_destroy operation. See
+ * the callbacks for further details.
  *
  * Note that dumb objects may not be used for gpu acceleration, as has been
  * attempted on some ARM embedded platforms. Such drivers really must have
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 92f89cee213e..34b2f111c01c 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -335,22 +335,12 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 }
 EXPORT_SYMBOL_GPL(drm_gem_dumb_map_offset);
 
-/**
- * drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers
- * @file: drm file-private structure to remove the dumb handle from
- * @dev: corresponding drm_device
- * @handle: the dumb handle to remove
- *
- * This implements the &drm_driver.dumb_destroy kms driver callback for drivers
- * which use gem to manage their backing storage.
- */
 int drm_gem_dumb_destroy(struct drm_file *file,
 			 struct drm_device *dev,
-			 uint32_t handle)
+			 u32 handle)
 {
 	return drm_gem_handle_delete(file, handle);
 }
-EXPORT_SYMBOL(drm_gem_dumb_destroy);
 
 /**
  * drm_gem_handle_create_tail - internal functions to create a handle
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 81d386b5b92a..fad2249ee67b 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -191,6 +191,9 @@ void drm_gem_unpin(struct drm_gem_object *obj);
 int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 
+int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+			 u32 handle);
+
 /* drm_debugfs.c drm_debugfs_crc.c */
 #if defined(CONFIG_DEBUG_FS)
 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 5e6daa1c982f..240049566592 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -416,8 +416,5 @@ int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
 				     bool write);
 int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 			    u32 handle, u64 *offset);
-int drm_gem_dumb_destroy(struct drm_file *file,
-			 struct drm_device *dev,
-			 uint32_t handle);
 
 #endif /* __DRM_GEM_H__ */
-- 
Regards,

Laurent Pinchart

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