[PATCH 00/10] drm/uapi: Validate mode flags/type, and deprecate some of them

[Ville Syrjälä]

On Tue, Nov 14, 2017 at 08:32:48PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> I recently realized that we're not validating the mode flags/type
> passed in from userspace. Let's try to fix that.
> 
> I'd also like to entirely eliminate some of the more crazy mode flags.
> PIXMUX and BCAST look pretty easy, so I've targetted them first.
> 
> Ideally I'd like to kill DBLCLK, CLKDIV2, HSKEW, DBLSCAN, and vscan
> as well. IMO there's no good reason to expose any of that to userspace,
> and instead it should all be handled internally by the drivers.
> Unfortunately all of those seem to be used to some degree by a handful
> of drivers.
> 
> I also tried to nuke some of the crazy mode types.
> 
> Cc: Jose Abreu <Jose.Abreu at synopsys.com>
> Cc: Adam Jackson <ajax at redhat.com>
> Cc: Keith Packard <keithp at keithp.com>
> 
> Ville Syrjälä (10):
>   drm/modes: Move 3D stereo flag check into drm_mode_validate_basic()
>   drm/uapi: Validate the mode flags/type
>   drm/uapi: Deprecate DRM_MODE_FLAG_PIXMUX
>   drm/uapi: Deprecate DRM_MODE_FLAG_BCAST
>   drm/modes: Fix description of DRM_MODE_TYPE_USERDEF
>   drm/modes: Kill off the oddball DRM_MODE_TYPE_CRTC_C vs.
>     DRM_MODE_TYPE_BUILTIN handling
>   drm/modes: Kill DRM_MODE_TYPE_CLOCK_CRTC_C define
>   drm/uapi: Deprecate nonsense kms mode types
>   drm/modes: Provide global mode_valid hook
>   drm/i915: Provide a device level .mode_valid() hook

Entire series pushed to drm-misc-next. Thanks for the reviews.

> 
>  drivers/gpu/drm/drm_atomic.c         |  2 +-
>  drivers/gpu/drm/drm_crtc.c           |  2 +-
>  drivers/gpu/drm/drm_modes.c          | 60 +++++++++++++++++++++++++-----------
>  drivers/gpu/drm/drm_probe_helper.c   |  2 +-
>  drivers/gpu/drm/i915/intel_crt.c     |  3 --
>  drivers/gpu/drm/i915/intel_display.c | 27 ++++++++++++++++
>  drivers/gpu/drm/i915/intel_dsi.c     |  5 ---
>  drivers/gpu/drm/i915/intel_dvo.c     |  3 --
>  drivers/gpu/drm/i915/intel_fbc.c     |  3 +-
>  drivers/gpu/drm/i915/intel_hdmi.c    |  3 --
>  drivers/gpu/drm/i915/intel_sdvo.c    |  3 --
>  include/drm/drm_mode_config.h        | 12 ++++++++
>  include/drm/drm_modes.h              | 24 +++++++--------
>  include/uapi/drm/drm_mode.h          | 30 ++++++++++++++----
>  14 files changed, 120 insertions(+), 59 deletions(-)
> 
> -- 
> 2.13.6

-- 
Ville Syrjälä
Intel OTC