IL_LAST_OFDM_RATE
if (rate_idx > IL_LAST_OFDM_RATE)
rate_idx = IL_LAST_OFDM_RATE;
if (idx >= IL_FIRST_OFDM_RATE && idx <= IL_LAST_OFDM_RATE)
if (idx > IL_LAST_OFDM_RATE) {
idx = IL_LAST_OFDM_RATE;