__BIT_ZERO
__BIT_ZERO(BRVLAN_SETSIZE, set);
#define BIT_ZERO(_s, p) __BIT_ZERO(_s, p)
__BIT_ZERO(_s, p); \
#define CPU_ZERO(p) __BIT_ZERO(CPU_SETSIZE, p)
#define CPU_ZERO_S(_s, p) __BIT_ZERO((_s) * 8, p)
#define DOMAINSET_ZERO(p) __BIT_ZERO(DOMAINSET_SETSIZE, p)