Extern or forward variable declaration at drivers/gpu/drm/i915/i915_perf.h, line 14 References: drivers/gpu/drm/i915/i915_drv.c, line 659 drivers/gpu/drm/i915/i915_drv.c, line 958 drivers/gpu/drm/i915/i915_drv.c, line 982 drivers/gpu/drm/i915/i915_drv.c, line 1006 drivers/gpu/drm/i915/i915_drv.c, line 1012 drivers/gpu/drm/i915/i915_drv.c, line 1026 drivers/gpu/drm/i915/i915_drv.c, line 1038 drivers/gpu/drm/i915/i915_drv.c, line 1078 drivers/gpu/drm/i915/i915_drv.c, line 1093 drivers/gpu/drm/i915/i915_drv.c, line 1150 drivers/gpu/drm/i915/i915_drv.c, line 1218 drivers/gpu/drm/i915/i915_drv.c, line 1280 drivers/gpu/drm/i915/i915_drv.c, line 1696 drivers/gpu/drm/i915/i915_getparam.c, line 11 drivers/gpu/drm/i915/i915_perf.c, line 3722 drivers/gpu/drm/i915/i915_perf.c, line 4014 drivers/gpu/drm/i915/i915_perf.c, line 4167 drivers/gpu/drm/i915/i915_perf.h, line 14 drivers/gpu/drm/i915/i915_perf.h, line 29 drivers/gpu/drm/i915/i915_perf.h, line 31 drivers/gpu/drm/i915/i915_perf.h, line 33 drivers/gpu/drm/i915/i915_query.c, line 429