drm: add drm_core_check_all_features() to check for a mask of features
Add new drm_core_check_all_features() function to check for a mask of features. All features in the mask are required. Redefine existing drm_core_check_feature() in terms of this function, using the drm_driver_feature enum for the parameter. v3: - add drm_core_check_all_features() (Thomas) v2: - fix kernel-doc (Ville) - add an extra variable for clarity (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200123124801.14958-1-jani.nikula@intel.com
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