libdrm: drm_mode.h needs to be updated to match kernel version

[rufus hamade <rufus@xxxxxxxxxxxxxx>]

Hi All,

We just recently noticed a problem with the version of drm_mode.h found in the mesa/drm git repository.  In changeset c601444a90, Thomas Hellstrom updated xf86drmMode.h to add some new mode defines introduced in recent kernels.  But he didn't update include/drm/drm_mode.h at the same time.  This means that if you use the libdrm versions of the headers, you don't get the new defines, and Thomas' change essentially has no effect.

Also, does this suggest that the fallback mechanism in xf86drmMode.h is not really effective?  I can see a case where new libdrm uses an old version of drm_mode.h, which means a bunch of the new defines (e.g., DRM_MODE_CONNECTOR_VIRTUAL) won't get defined.  Perhaps a better scheme is to test each individual define separately, and define it if it is not set? 

Or perhaps I am missing something?  I'd appreciate any insights if you have any.

rufus

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