235 static size_t read_lba(struct parsed_partitions *state,  in read_lba()  argument
240 		(queue_logical_block_size(state->disk->queue) / 512);  in read_lba()
242 	if (!buffer || lba > last_lba(state->disk))  in read_lba()
248 		unsigned char *data = read_part_sector(state, n++, &sect);  in read_lba()
271 static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,  in alloc_read_gpt_entries()  argument
288 	if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),  in alloc_read_gpt_entries()
306 static gpt_header *alloc_read_gpt_header(struct parsed_partitions *state,  in alloc_read_gpt_header()  argument
310 	unsigned ssz = queue_logical_block_size(state->disk->queue);  in alloc_read_gpt_header()
316 	if (read_lba(state, lba, (u8 *) gpt, ssz) < ssz) {  in alloc_read_gpt_header()
335 static int is_gpt_valid(struct parsed_partitions *state, u64 lba,  in is_gpt_valid()  argument
343 	if (!(*gpt = alloc_read_gpt_header(state, lba)))  in is_gpt_valid()
357 			queue_logical_block_size(state->disk->queue)) {  in is_gpt_valid()
360 			queue_logical_block_size(state->disk->queue));  in is_gpt_valid()
396 	lastlba = last_lba(state->disk);  in is_gpt_valid()
430 	if (!(*ptes = alloc_read_gpt_entries(state, *gpt)))  in is_gpt_valid()
581 static int find_valid_gpt(struct parsed_partitions *state, gpt_header **gpt,  in find_valid_gpt()  argument
588 	struct gendisk *disk = state->disk;  in find_valid_gpt()
590 	sector_t total_sectors = get_capacity(state->disk);  in find_valid_gpt()
596 	lastlba = last_lba(state->disk);  in find_valid_gpt()
603 		read_lba(state, 0, (u8 *)legacymbr, sizeof(*legacymbr));  in find_valid_gpt()
615 	good_pgpt = is_gpt_valid(state, GPT_PRIMARY_PARTITION_TABLE_LBA,  in find_valid_gpt()
618 		good_agpt = is_gpt_valid(state,  in find_valid_gpt()
622                 good_agpt = is_gpt_valid(state, lastlba, &agpt, &aptes);  in find_valid_gpt()
630 			good_agpt = is_gpt_valid(state, agpt_sector,  in find_valid_gpt()
713 int efi_partition(struct parsed_partitions *state)  in efi_partition()  argument
718 	unsigned ssz = queue_logical_block_size(state->disk->queue) / 512;  in efi_partition()
720 	if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) {  in efi_partition()
728 	for (i = 0; i < le32_to_cpu(gpt->num_partition_entries) && i < state->limit-1; i++) {  in efi_partition()
735 		if (!is_pte_valid(&ptes[i], last_lba(state->disk)))  in efi_partition()
738 		put_partition(state, i+1, start * ssz, size * ssz);  in efi_partition()
742 			state->parts[i + 1].flags = ADDPART_FLAG_RAID;  in efi_partition()
744 		info = &state->parts[i + 1].info;  in efi_partition()
751 		state->parts[i + 1].has_info = true;  in efi_partition()
755 	strlcat(state->pp_buf, "\n", PAGE_SIZE);  in efi_partition()