fs: btrfs: Add more checksum algorithms

This mostly crossports crypto/hash.[ch] from btrfs-progs.

The differences are:
- No blake2 support
  No blake2 related library in U-Boot yet.

- Use uboot xxhash/sha256 directly
  No need to implement the code as U-Boot has already provided the
  interface.

This adds the support for the following csums:
- SHA256
- XXHASH

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

1 files changed, 0 insertions, 11 deletions

diff --git a/fs/btrfs/btrfs.h b/fs/btrfs/btrfs.h
index 25a8cf6a879..1aacbc8cbb8 100644
--- a/fs/btrfs/btrfs.h
+++ b/fs/btrfs/btrfs.h
@@ -23,17 +23,6 @@ struct btrfs_info {
 
 extern struct btrfs_info btrfs_info;
 
-/* hash.c */
-void btrfs_hash_init(void);
-u32 btrfs_crc32c(u32, const void *, size_t);
-u32 btrfs_csum_data(char *, u32, size_t);
-void btrfs_csum_final(u32, void *);
-
-static inline u64 btrfs_name_hash(const char *name, int len)
-{
-	return btrfs_crc32c((u32) ~1, name, len);
-}
-
 /* dev.c */
 extern struct blk_desc *btrfs_blk_desc;
 extern struct disk_partition *btrfs_part_info;