if (port_no) addr += SIS_SATA1_OFS; 
if (port_no) if (device == 0x182) addr += SIS182_SATA1_OFS; else addr += SIS180_SATA1_OFS; 
static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg){	unsigned int addr = SIS_SCR_BASE + (4 * sc_reg);	if (port_no)		addr += SIS_SATA1_OFS;	return addr;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/f2c853bca542f5ac0b036377637192a74f2091c2/sata_sis.c/buggy/drivers/scsi/sata_sis.c