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(parent: b66ecd0) | patch
drm/i915: Check for error before calling cmpxchg()
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 6 Dec 2019 16:04:26 +0000 (16:04 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 6 Dec 2019 19:09:33 +0000 (19:09 +0000)
commit5e6a94713be051c491cd47c85263661af07b629c
treec6c1963adcf71fe70a916320ddc2b4391cc62be9tree | snapshot
parentb66ecd0438bf6079d08e8f2afea6114f468f56f4commit | diff
drm/i915: Check for error before calling cmpxchg()

Only do the locked compare of the existing fence->error if we actually
need to set an error. As we tend to call i915_sw_fence_set_error_once()
unconditionally, it saves on typing to put the common has-error check
into the inline.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191206160428.1503343-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_sw_fence.h diff | blob | history
Domain: System / Kernel;