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A long time ago we turned off the warning as it was too painful, we had too much broken code. Turn it back on now as we are mostly clean and need to prevent returning to such orangeness. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Imre Deak <imre.deak@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170302074157.21631-2-chris@chris-wilson.co.uk Reviewed-by: Imre Deak <imre.deak@intel.com>