Hi Sean.
Any plans for the other users of DRM_WRITE<N>()? It seems like it'd be trivial to fix it up for via and mga. I don't really have any background on drm_os_linux.h, but it doesn't seem like it'd be that much more effort to just remove the whole thing.
During the drmP.h removal I also took care of drm_os_linux.h, so when the patches land then there will be no users left. I look forward to delete that file.
For via I only just posted the patches today. For mga they already landed in drm-misc-next.
I expect that we after next merge window can delete both drm_os_linux.h and drmP.h.
Sam