[Intel-gfx] [jbarnes:upstream-sync-points 2/2] drivers/gpu/drm/i915/i915_sync.c:43:12: sparse: symbol 'fence_lock' was not declared. Should it be static?

[kbuild test robot]

tree:   git://people.freedesktop.org/~jbarnes/linux upstream-sync-points
head:   97b242f63adaf11c3edf16b0282243cc4274eac8
commit: 97b242f63adaf11c3edf16b0282243cc4274eac8 [2/2] drm/i915: Android sync points for i915 v3
reproduce:
  # apt-get install sparse
  git checkout 97b242f63adaf11c3edf16b0282243cc4274eac8
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> drivers/gpu/drm/i915/i915_sync.c:43:12: sparse: symbol 'fence_lock' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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