89 static void dmi_decode_table(u8 *buf,  in dmi_decode_table()  argument
93 	u8 *data = buf;  in dmi_decode_table()
103 	       (data - buf + sizeof(struct dmi_header)) <= dmi_len) {  in dmi_decode_table()
112 		while ((data - buf < dmi_len - 1) && (data[0] || data[1]))  in dmi_decode_table()
114 		if (data - buf < dmi_len - 1)  in dmi_decode_table()
133 	if (dmi_len > data - buf)  in dmi_decode_table()
134 		dmi_len = data - buf;  in dmi_decode_table()
142 	u8 *buf;  in dmi_walk_early()  local
145 	buf = dmi_early_remap(dmi_base, orig_dmi_len);  in dmi_walk_early()
146 	if (buf == NULL)  in dmi_walk_early()
149 	dmi_decode_table(buf, decode, NULL);  in dmi_walk_early()
151 	add_device_randomness(buf, dmi_len);  in dmi_walk_early()
153 	dmi_early_unmap(buf, orig_dmi_len);  in dmi_walk_early()
157 static int __init dmi_checksum(const u8 *buf, u8 len)  in dmi_checksum()  argument
163 		sum += buf[a];  in dmi_checksum()
443 static int __init print_filtered(char *buf, size_t len, const char *info)  in print_filtered()  argument
453 			c += scnprintf(buf + c, len - c, "%c", *p);  in print_filtered()
455 			c += scnprintf(buf + c, len - c, "\\x%02x", *p & 0xff);  in print_filtered()
459 static void __init dmi_format_ids(char *buf, size_t len)  in dmi_format_ids()  argument
464 	c += print_filtered(buf + c, len - c,  in dmi_format_ids()
466 	c += scnprintf(buf + c, len - c, " ");  in dmi_format_ids()
467 	c += print_filtered(buf + c, len - c,  in dmi_format_ids()
472 		c += scnprintf(buf + c, len - c, "/");  in dmi_format_ids()
473 		c += print_filtered(buf + c, len - c, board);  in dmi_format_ids()
475 	c += scnprintf(buf + c, len - c, ", BIOS ");  in dmi_format_ids()
476 	c += print_filtered(buf + c, len - c,  in dmi_format_ids()
478 	c += scnprintf(buf + c, len - c, " ");  in dmi_format_ids()
479 	c += print_filtered(buf + c, len - c,  in dmi_format_ids()
490 static int __init dmi_present(const u8 *buf)  in dmi_present()  argument
494 	if (memcmp(buf, "_SM_", 4) == 0 &&  in dmi_present()
495 	    buf[5] < 32 && dmi_checksum(buf, buf[5])) {  in dmi_present()
496 		smbios_ver = get_unaligned_be16(buf + 6);  in dmi_present()
497 		smbios_entry_point_size = buf[5];  in dmi_present()
498 		memcpy(smbios_entry_point, buf, smbios_entry_point_size);  in dmi_present()
517 	buf += 16;  in dmi_present()
519 	if (memcmp(buf, "_DMI_", 5) == 0 && dmi_checksum(buf, 15)) {  in dmi_present()
523 			dmi_ver = (buf[14] & 0xF0) << 4 | (buf[14] & 0x0F);  in dmi_present()
525 		dmi_num = get_unaligned_le16(buf + 12);  in dmi_present()
526 		dmi_len = get_unaligned_le16(buf + 6);  in dmi_present()
527 		dmi_base = get_unaligned_le32(buf + 8);  in dmi_present()
535 				memcpy(smbios_entry_point, buf,  in dmi_present()
553 static int __init dmi_smbios3_present(const u8 *buf)  in dmi_smbios3_present()  argument
555 	if (memcmp(buf, "_SM3_", 5) == 0 &&  in dmi_smbios3_present()
556 	    buf[6] < 32 && dmi_checksum(buf, buf[6])) {  in dmi_smbios3_present()
557 		dmi_ver = get_unaligned_be32(buf + 6) & 0xFFFFFF;  in dmi_smbios3_present()
559 		dmi_len = get_unaligned_le32(buf + 12);  in dmi_smbios3_present()
560 		dmi_base = get_unaligned_le64(buf + 16);  in dmi_smbios3_present()
561 		smbios_entry_point_size = buf[6];  in dmi_smbios3_present()
562 		memcpy(smbios_entry_point, buf, smbios_entry_point_size);  in dmi_smbios3_present()
579 	char buf[32];  in dmi_scan_machine()  local
599 			memcpy_fromio(buf, p, 32);  in dmi_scan_machine()
602 			if (!dmi_smbios3_present(buf)) {  in dmi_scan_machine()
617 		memcpy_fromio(buf, p, 32);  in dmi_scan_machine()
620 		if (!dmi_present(buf)) {  in dmi_scan_machine()
636 		memset(buf, 0, 16);  in dmi_scan_machine()
638 			memcpy_fromio(buf + 16, q, 16);  in dmi_scan_machine()
639 			if (!dmi_smbios3_present(buf) || !dmi_present(buf)) {  in dmi_scan_machine()
644 			memcpy(buf, buf + 16, 16);  in dmi_scan_machine()
655 			      struct bin_attribute *attr, char *buf,  in raw_table_read()  argument
658 	memcpy(buf, attr->private + pos, count);  in raw_table_read()
978 	u8 *buf;  in dmi_walk()  local
983 	buf = dmi_remap(dmi_base, dmi_len);  in dmi_walk()
984 	if (buf == NULL)  in dmi_walk()
987 	dmi_decode_table(buf, decode, private_data);  in dmi_walk()
989 	dmi_unmap(buf);  in dmi_walk()