atomic_add_int
atomic_add_int(volatile int *ulp, int v)
#define atomic_add_int(_p, _v) _atomic_add_int(_p, _v)
#define atomic_add_int(_p, _v) _atomic_add_int(_p, _v)
#define atomic_add_int UNIMPLEMENTED
#define atomic_add_int(_p, _v) ((void)atomic_add_int_nv((_p), (_v)))