WMI_CMD_HDR_IF_ID_MASK
info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
return le16_to_cpu(chdr->info1) & WMI_CMD_HDR_IF_ID_MASK;