Comment # 3 on bug 1070099 from Takashi Iwai

The messages are basically harmless by themselves.  The warnings were added by
the commit 4ebc7182743a4bef47cdd9d3e9f08cff943faa4f
    drm/amdkfd: Add more error printing to help bringup v2
while amdkfd driver silently failed formerly.