[Intel-gfx] [PATCH v4] drm/i915/tracing: Enable user interrupts while intel_engine_notify is active

[Chris Wilson]

Quoting Tvrtko Ursulin (2018-08-09 11:01:28)
> +#if IS_ENABLED(CONFIG_TRACEPOINTS)
> +
> +void i915_tracing_register(struct drm_i915_private *i915);
> +void i915_tracing_unregister(struct drm_i915_private *i915);
> +
> +int intel_engine_notify_tracepoint_register(void);
> +void intel_engine_notify_tracepoint_unregister(void);
> +
> +#else
> +
> +static inline void i915_tracing_register(struct drm_i915_private *i915) { }
> +static inline void i915_tracing_unregister(struct drm_i915_private *i915) { }
> +
> +static inline int intel_engine_notify_tracepoint_register(void) { }

I was blind, return 0;
Better keep the compiler happy before kbuild complains.
-Chris