Hi,
Finally got around to it. This patchset implements some updates to the drm ioctl handler that were first raised by Daniel Vetter in [1]. Namely:
- Flush concurrent processes that can change the modeset when DRM masters are set/dropped or a lease is revoked - Unexport drm_ioctl_permit()
Thoughts and comments would be very appreciated.
Link: https://lore.kernel.org/lkml/YN9kAFcfGoB13x7f@phenom.ffwll.local/ [1]
Best wishes, Desmond
Desmond Cheong Zhi Xi (2): drm: avoid races with modesetting rights drm: unexport drm_ioctl_permit
drivers/gpu/drm/drm_auth.c | 17 +++++++++--- drivers/gpu/drm/drm_client_modeset.c | 10 ++++--- drivers/gpu/drm/drm_drv.c | 2 ++ drivers/gpu/drm/drm_fb_helper.c | 20 ++++++++------ drivers/gpu/drm/drm_internal.h | 5 ++-- drivers/gpu/drm/drm_ioctl.c | 40 +++++++++++++++------------- include/drm/drm_device.h | 11 ++++++++ include/drm/drm_ioctl.h | 8 +++++- 8 files changed, 77 insertions(+), 36 deletions(-)