4185 New hash algorithm support

@@ -211,10 +211,11 @@
 extern void fletcher_2_native(const void *, uint64_t, zio_cksum_t *);
 extern void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *);
 extern void fletcher_4_native(const void *, uint64_t, zio_cksum_t *);
 extern void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *);
 extern void zio_checksum_SHA256(const void *, uint64_t, zio_cksum_t *);
+extern void zio_checksum_SHA512(const void *, uint64_t, zio_cksum_t *);
 extern int lzjb_decompress(void *, void *, size_t, size_t);
 extern int lz4_decompress(void *, void *, size_t, size_t);
 
 #endif  /* FSYS_ZFS */