DTRACE_LLQUANTIZE_NSTEP
uint16_t nsteps = DTRACE_LLQUANTIZE_NSTEP(arg);
nsteps = DTRACE_LLQUANTIZE_NSTEP(arg);
uint16_t nsteps = DTRACE_LLQUANTIZE_NSTEP(desc->dtad_arg);
uint16_t nsteps = DTRACE_LLQUANTIZE_NSTEP(arg);