38 static u32 read_mbr_sig(u8 devno, struct edd_info *ei, u32 *mbrsig)  in read_mbr_sig()  argument
46 	sector_size = ei->params.bytes_per_sector;  in read_mbr_sig()
73 static int get_edd_info(u8 devno, struct edd_info *ei)  in get_edd_info()  argument
77 	memset(ei, 0, sizeof(*ei));  in get_edd_info()
93 	ei->device  = devno;  in get_edd_info()
94 	ei->version = oreg.ah;		 /* EDD version number */  in get_edd_info()
95 	ei->interface_support = oreg.cx; /* EDD functionality subsets */  in get_edd_info()
99 	ei->params.length = sizeof(ei->params);  in get_edd_info()
101 	ireg.si = (size_t)&ei->params;  in get_edd_info()
112 		ei->legacy_max_cylinder = oreg.ch + ((oreg.cl & 0xc0) << 2);  in get_edd_info()
113 		ei->legacy_max_head = oreg.dh;  in get_edd_info()
114 		ei->legacy_sectors_per_track = oreg.cl & 0x3f;  in get_edd_info()
131 	struct edd_info ei, *edp;  in query_edd()  local
165 		if (!get_edd_info(devno, &ei)  in query_edd()
167 			memcpy(edp, &ei, sizeof(ei));  in query_edd()
172 		if (do_mbr && !read_mbr_sig(devno, &ei, mbrptr++))  in query_edd()