void *addr;
void __iomem *addr;
static u32 sil24_scr_read(struct ata_port *ap, unsigned sc_reg){	void *scr_addr = (void *)ap->ioaddr.scr_addr;	if (sc_reg < ARRAY_SIZE(sil24_scr_map)) {		void *addr;		addr = scr_addr + sil24_scr_map[sc_reg] * 4;		return readl(scr_addr + sil24_scr_map[sc_reg] * 4);	}	return 0xffffffffU;}