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(parent: 951468f) | patch
drm/i915: Rewrite ABS_DIFF() in a safer manner
authorDamien Lespiau <damien.lespiau@intel.com>
Thu, 4 Sep 2014 11:27:23 +0000 (12:27 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 4 Sep 2014 13:08:53 +0000 (15:08 +0200)
commit2789339044fb6dfbee0c8cd77e26438b80e333ee
tree072046d5f05e726246db377fc63e0d31aedeaeabtree | snapshot (tar.gz zip)
parent951468f33118d1183fd22a5e8450b80a5afc0dd9commit | diff
drm/i915: Rewrite ABS_DIFF() in a safer manner

The new version of the macro does a few things better:
  - protect the arguments,
  - only evaluate the arguments once,
  - check that the arguments are of the same type,

Change LC_FREQ_2K to be a unsigned 64bit constant and removed the '()'
from the caller as a result.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_ddi.c diff | blob | blame | history