diff options
| author | Daniel Vetter | 2013-08-08 15:41:21 +0200 |
|---|---|---|
| committer | Dave Airlie | 2013-08-19 02:04:48 +0200 |
| commit | 7c510133d93dd6f15ca040733ba7b2891ed61fd1 (patch) | |
| tree | 82c22a7ef8058c7a1c212e89fb6156eaad3fa19e /include/drm/drmP.h | |
| parent | drm: disallow legacy dma ioctls for modesetting drivers (diff) | |
| download | kernel-qcow2-linux-7c510133d93dd6f15ca040733ba7b2891ed61fd1.tar.gz kernel-qcow2-linux-7c510133d93dd6f15ca040733ba7b2891ed61fd1.tar.xz kernel-qcow2-linux-7c510133d93dd6f15ca040733ba7b2891ed61fd1.zip | |
drm: mark context support as a legacy subsystem
So after a lot of digging around in git histories it looks like this
has only ever be used by dri1 render clients. Hence we can fully
disable the entire thing for modesetting drivers and so greatly reduce
the attack surface for potential exploits (or at least tools like
trinity ...).
Also add the drm_legacy prefix for functions which are called from
common code. To further reduce the impact on common code also extract
all the ctx release handling into a function (instead of only
releasing individual handles) and make ctxbitmap_cleanup return void -
it can never fail.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drmP.h')
| -rw-r--r-- | include/drm/drmP.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 1da25304c289..277f307e053d 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1313,9 +1313,10 @@ extern int drm_newctx(struct drm_device *dev, void *data, extern int drm_rmctx(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_ctxbitmap_init(struct drm_device *dev); -extern void drm_ctxbitmap_cleanup(struct drm_device *dev); -extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); +extern void drm_legacy_ctxbitmap_init(struct drm_device *dev); +extern void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev); +extern void drm_legacy_ctxbitmap_release(struct drm_device *dev, + struct drm_file *file_priv); extern int drm_setsareactx(struct drm_device *dev, void *data, struct drm_file *file_priv); |