Quoting Jackie Li (2018-02-06 00:02:41)
> +static inline bool __reg_locked(struct drm_i915_private *dev_priv,
> + i915_reg_t reg)
> +{
> + /* Explicitly cast the return value to bool. */
You already did by using bool.
> + return !!(I915_READ(reg) & GUC_WOPCM_REG_LOCKED);
i.e. this is equivalent as defined by the C spec to
return I915_READ(reg) & GUC_WOPCM_REG_LOCKED;
-Chris
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