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drm: disallow legacy sg ioctls for modesetting drivers 

Only the radeon/r128/ati ums drivers use this. Furthermore the cleanup
was already only done for UMS drivers. Also a quick check of the ATI
ddx git history shows that only the UMS code ever used this facility.

So we can safely disallow these pair of ioctls for modesetting
drivers.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
wifi-calibration
Daniel Vetter 2013-08-08 15:41:18 +02:00 committed by Dave Airlie
parent 3d914e8357
commit 8e194bbf96
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/drm_scatter.c
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@ -87,6 +87,9 @@ int drm_sg_alloc(struct drm_device *dev, void *data,
DRM_DEBUG("\n");
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (!drm_core_check_feature(dev, DRIVER_SG))
return -EINVAL;
@ -197,6 +200,9 @@ int drm_sg_free(struct drm_device *dev, void *data,
struct drm_scatter_gather *request = data;
struct drm_sg_mem *entry;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (!drm_core_check_feature(dev, DRIVER_SG))
return -EINVAL;