CPU_FLS
lbs = CPU_FLS(&c) - 1;
if (CPU_FLS(&mask) < mp_ncpus && CPU_FLS(&mask) >= 64)
if (error == 0 && size < howmany(CPU_FLS(cpuset), NBBY))
if (cpusetsize < howmany(CPU_FLS(mask), NBBY))
cg->cg_last = CPU_FLS(&cg->cg_mask) - 1;
last_valid = CPU_FLS(&ctx->ifc_cpus) - 1;
last_valid = CPU_FLS(&ctx->ifc_cpus) - 1;