diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_utils.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_utils.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index 94f136d8a5fd..00b55252ef51 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -430,4 +430,17 @@ static inline bool timer_expired(const struct timer_list *t) return READ_ONCE(t->expires) && !timer_pending(t); } +/* + * This is a lookalike for IS_ENABLED() that takes a kconfig value, + * e.g. CONFIG_DRM_I915_SPIN_REQUEST, and evaluates whether it is non-zero + * i.e. whether the configuration is active. Wrapping up the config inside + * a boolean context prevents clang and smatch from complaining about potential + * issues in confusing logical-&& with bitwise-& for constants. + * + * Sadly IS_ENABLED() itself does not work with kconfig values. + * + * Returns 0 if @config is 0, 1 if set to any value. + */ +#define IS_ACTIVE(config) ((config) != 0) + #endif /* !__I915_UTILS_H */ |