drm/i915: Convert (void)I915_READ to POSTING_READ
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 16 Nov 2010 15:55:10 +0000 (15:55 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 16 Nov 2010 15:55:10 +0000 (15:55 +0000)
... and so hide the flushes from tracing.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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