251 static size_t read_lba(struct parsed_partitions *state,  in read_lba()  argument
255 	struct block_device *bdev = state->bdev;  in read_lba()
264 		unsigned char *data = read_part_sector(state, n++, &sect);  in read_lba()
287 static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,  in alloc_read_gpt_entries()  argument
304 	if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),  in alloc_read_gpt_entries()
322 static gpt_header *alloc_read_gpt_header(struct parsed_partitions *state,  in alloc_read_gpt_header()  argument
326 	unsigned ssz = bdev_logical_block_size(state->bdev);  in alloc_read_gpt_header()
332 	if (read_lba(state, lba, (u8 *) gpt, ssz) < ssz) {  in alloc_read_gpt_header()
351 static int is_gpt_valid(struct parsed_partitions *state, u64 lba,  in is_gpt_valid()  argument
359 	if (!(*gpt = alloc_read_gpt_header(state, lba)))  in is_gpt_valid()
373 			bdev_logical_block_size(state->bdev)) {  in is_gpt_valid()
376 			bdev_logical_block_size(state->bdev));  in is_gpt_valid()
412 	lastlba = last_lba(state->bdev);  in is_gpt_valid()
446 	if (!(*ptes = alloc_read_gpt_entries(state, *gpt)))  in is_gpt_valid()
597 static int find_valid_gpt(struct parsed_partitions *state, gpt_header **gpt,  in find_valid_gpt()  argument
604 	sector_t total_sectors = i_size_read(state->bdev->bd_inode) >> 9;  in find_valid_gpt()
610 	lastlba = last_lba(state->bdev);  in find_valid_gpt()
617 		read_lba(state, 0, (u8 *)legacymbr, sizeof(*legacymbr));  in find_valid_gpt()
629 	good_pgpt = is_gpt_valid(state, GPT_PRIMARY_PARTITION_TABLE_LBA,  in find_valid_gpt()
632 		good_agpt = is_gpt_valid(state,  in find_valid_gpt()
636                 good_agpt = is_gpt_valid(state, lastlba, &agpt, &aptes);  in find_valid_gpt()
692 int efi_partition(struct parsed_partitions *state)  in efi_partition()  argument
697 	unsigned ssz = bdev_logical_block_size(state->bdev) / 512;  in efi_partition()
699 	if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) {  in efi_partition()
707 	for (i = 0; i < le32_to_cpu(gpt->num_partition_entries) && i < state->limit-1; i++) {  in efi_partition()
715 		if (!is_pte_valid(&ptes[i], last_lba(state->bdev)))  in efi_partition()
718 		put_partition(state, i+1, start * ssz, size * ssz);  in efi_partition()
722 			state->parts[i + 1].flags = ADDPART_FLAG_RAID;  in efi_partition()
724 		info = &state->parts[i + 1].info;  in efi_partition()
738 		state->parts[i + 1].has_info = true;  in efi_partition()
742 	strlcat(state->pp_buf, "\n", PAGE_SIZE);  in efi_partition()