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Commit 8d38c4b4 authored by Daniel Vetter's avatar Daniel Vetter Committed by Dave Airlie
Browse files

drm: disallow legacy dma ioctls for modesetting drivers 



Now only legacy ums drivers have the DRIVER_HAVE_DMA driver feature
flag set, so strictly speaking the modesetting check is redundant. But
adding it has the upside that it makes it very clear that the dma
support is legacy stuff.

Reviewed-by: default avatarEric Anholt <eric@anholt.net>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent e2e99a82

drivers/gpu/drm/drm_bufs.c

+15 −0
Original line number Diff line number Diff line
@@ -1305,6 +1305,9 @@ int drm_addbufs(struct drm_device *dev, void *data, 
	struct drm_buf_desc *request = data;

	int ret;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))

		return -EINVAL;
@@ -1348,6 +1351,9 @@ int drm_infobufs(struct drm_device *dev, void *data, 
	int i;

	int count;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))

		return -EINVAL;
@@ -1427,6 +1433,9 @@ int drm_markbufs(struct drm_device *dev, void *data, 
	int order;

	struct drm_buf_entry *entry;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))

		return -EINVAL;
@@ -1472,6 +1481,9 @@ int drm_freebufs(struct drm_device *dev, void *data, 
	int idx;

	struct drm_buf *buf;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))

		return -EINVAL;
@@ -1524,6 +1536,9 @@ int drm_mapbufs(struct drm_device *dev, void *data, 
	struct drm_buf_map *request = data;

	int i;



	if (drm_core_check_feature(dev, DRIVER_MODESET))

		return -EINVAL;



	if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))

		return -EINVAL;