+ if (side_unlikely(!(desc->flags & SIDE_EVENT_FLAG_VARIADIC))) {
+ printf("ERROR: unexpected non-variadic event description\n");
+ abort();
+ }
+ enabled = __atomic_load_n(desc->enabled, __ATOMIC_RELAXED);
+ if (side_unlikely(enabled & SIDE_EVENT_ENABLED_KERNEL_USER_EVENT_MASK)) {