RATE_MCS_CODE_MSK  845 drivers/net/wireless/intel/iwlegacy/4965-rs.c 		mac_idx &= RATE_MCS_CODE_MSK;	/* Remove # of streams */
RATE_MCS_CODE_MSK  933 drivers/net/wireless/intel/iwlwifi/dvm/rs.c 		mac_index &= RATE_MCS_CODE_MSK;	/* Remove # of streams */