int eisa_enumerator()

in eisa_enumerator.c [480:515]

• 30 lines of code
• 6 McCabe index (conditional complexity)

int eisa_enumerator(unsigned long eeprom_addr,
		    struct resource *io_parent, struct resource *mem_parent) 
{
	int i;
	struct eeprom_header *eh;
	static char eeprom_buf[HPEE_MAX_LENGTH];
	
	for (i=0; i < HPEE_MAX_LENGTH; i++) {
		eeprom_buf[i] = gsc_readb(eeprom_addr+i);
	}
	
	printk(KERN_INFO "Enumerating EISA bus\n");
		    	
	eh = (struct eeprom_header*)(eeprom_buf);
	for (i=0;i<eh->num_slots;i++) {
		struct eeprom_eisa_slot_info *es;
		
		es = (struct eeprom_eisa_slot_info*)
			(&eeprom_buf[HPEE_SLOT_INFO(i)]);
	        
		if (-1==init_slot(i+1, es)) {
			continue;
		}
		
		if (es->config_data_offset < HPEE_MAX_LENGTH) {
			if (parse_slot_config(i+1, &eeprom_buf[es->config_data_offset],
					      es, io_parent, mem_parent)) {
				return -1;
			}
		} else {
			printk (KERN_WARNING "EISA EEPROM offset 0x%x out of range\n",es->config_data_offset);
			return -1;
		}
	}
	return eh->num_slots;
}