592 	if (le16_to_cpu(b->bpb.bytes_per_sector) < 0x100 ||  in is_boot_sector_ntfs()
593 			le16_to_cpu(b->bpb.bytes_per_sector) > 0x1000)  in is_boot_sector_ntfs()
596 	switch (b->bpb.sectors_per_cluster) {  in is_boot_sector_ntfs()
603 	if ((u32)le16_to_cpu(b->bpb.bytes_per_sector) *  in is_boot_sector_ntfs()
604 			b->bpb.sectors_per_cluster > NTFS_MAX_CLUSTER_SIZE)  in is_boot_sector_ntfs()
607 	if (le16_to_cpu(b->bpb.reserved_sectors) ||  in is_boot_sector_ntfs()
608 			le16_to_cpu(b->bpb.root_entries) ||  in is_boot_sector_ntfs()
609 			le16_to_cpu(b->bpb.sectors) ||  in is_boot_sector_ntfs()
610 			le16_to_cpu(b->bpb.sectors_per_fat) ||  in is_boot_sector_ntfs()
611 			le32_to_cpu(b->bpb.large_sectors) || b->bpb.fats)  in is_boot_sector_ntfs()
758 	vol->sector_size = le16_to_cpu(b->bpb.bytes_per_sector);  in parse_ntfs_boot_sector()
771 	ntfs_debug("sectors_per_cluster = 0x%x", b->bpb.sectors_per_cluster);  in parse_ntfs_boot_sector()
772 	sectors_per_cluster_bits = ffs(b->bpb.sectors_per_cluster) - 1;  in parse_ntfs_boot_sector()
775 	nr_hidden_sects = le32_to_cpu(b->bpb.hidden_sectors);  in parse_ntfs_boot_sector()