[PATCH 1/5] Revert "Revert "drm/gem: Rename drm_gem_dumb_map_offset() to drm_gem_map_offset()""

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From: Sean Paul <seanpaul@xxxxxxxxxxxx>

This reverts commit 415d2e9e07574d3de63b8df77dc686e0ebf64865.

Mandatory review was missing from this patch.

Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_dumb_buffers.c      |  4 ++--
 drivers/gpu/drm/drm_gem.c               | 10 +++++++---
 drivers/gpu/drm/exynos/exynos_drm_gem.c |  3 +--
 include/drm/drm_gem.h                   |  4 ++--
 4 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c
index d18a740fe0f1..b55cfc9e8772 100644
--- a/drivers/gpu/drm/drm_dumb_buffers.c
+++ b/drivers/gpu/drm/drm_dumb_buffers.c
@@ -48,7 +48,7 @@
  * 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.
+ * drm_gem_map_offset(). 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
@@ -127,7 +127,7 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
 						    args->handle,
 						    &args->offset);
 	else
-		return drm_gem_dumb_map_offset(file_priv, dev, args->handle,
+		return drm_gem_map_offset(file_priv, dev, args->handle,
 					       &args->offset);
 }
 
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index afc38cece3f5..8cbfd60e09c0 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -298,7 +298,7 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
 EXPORT_SYMBOL(drm_gem_handle_delete);
 
 /**
- * drm_gem_dumb_map_offset - return the fake mmap offset for a gem object
+ * drm_gem_map_offset - return the fake mmap offset for a gem object
  * @file: drm file-private structure containing the gem object
  * @dev: corresponding drm_device
  * @handle: gem object handle
@@ -307,10 +307,14 @@ EXPORT_SYMBOL(drm_gem_handle_delete);
  * This implements the &drm_driver.dumb_map_offset kms driver callback for
  * drivers which use gem to manage their backing storage.
  *
+ * It can also be used by drivers using GEM BO implementations which
+ * have same restriction that imported objects cannot be mapped. The
+ * shmem backend is one example.
+ *
  * Returns:
  * 0 on success or a negative error code on failure.
  */
-int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
+int drm_gem_map_offset(struct drm_file *file, struct drm_device *dev,
 			    u32 handle, u64 *offset)
 {
 	struct drm_gem_object *obj;
@@ -336,7 +340,7 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(drm_gem_dumb_map_offset);
+EXPORT_SYMBOL_GPL(drm_gem_map_offset);
 
 /**
  * drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index d734d9d51762..bf0ad8e5a02b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -273,8 +273,7 @@ int exynos_drm_gem_map_ioctl(struct drm_device *dev, void *data,
 {
 	struct drm_exynos_gem_map *args = data;
 
-	return drm_gem_dumb_map_offset(file_priv, dev, args->handle,
-				       &args->offset);
+	return drm_gem_map_offset(file_priv, dev, args->handle, &args->offset);
 }
 
 struct exynos_drm_gem *exynos_drm_gem_get(struct drm_file *filp,
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index ae693c0666cd..0d6445fa9541 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -401,8 +401,8 @@ int drm_gem_fence_array_add(struct xarray *fence_array,
 int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
 				     struct drm_gem_object *obj,
 				     bool write);
-int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
-			    u32 handle, u64 *offset);
+int drm_gem_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);
-- 
Sean Paul, Software Engineer, Google / Chromium OS

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