From 9c2b07e901e33a16993801ec0cedc94a37c436f7 Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Wed, 3 May 2023 14:03:39 +0800
Subject: [PATCH] btrfs-progs: crypto: remove unused blake2 code

We don't use the simple API and the self testing code.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 crypto/blake2b-ref.c | 109 -------------------------------------------
 1 file changed, 109 deletions(-)

diff --git a/crypto/blake2b-ref.c b/crypto/blake2b-ref.c
index eac4cf0c..c47c92ad 100644
--- a/crypto/blake2b-ref.c
+++ b/crypto/blake2b-ref.c
@@ -295,112 +295,3 @@ int blake2b_final( blake2b_state *S, void *out, size_t outlen )
   secure_zero_memory(buffer, sizeof(buffer));
   return 0;
 }
-
-/* inlen, at least, should be uint64_t. Others can be size_t. */
-int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
-{
-  blake2b_state S[1];
-
-  /* Verify parameters */
-  if ( NULL == in && inlen > 0 ) return -1;
-
-  if ( NULL == out ) return -1;
-
-  if( NULL == key && keylen > 0 ) return -1;
-
-  if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;
-
-  if( keylen > BLAKE2B_KEYBYTES ) return -1;
-
-  if( keylen > 0 )
-  {
-    if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
-  }
-  else
-  {
-    if( blake2b_init( S, outlen ) < 0 ) return -1;
-  }
-
-  blake2b_update( S, ( const uint8_t * )in, inlen );
-  blake2b_final( S, out, outlen );
-  return 0;
-}
-
-int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
-  return blake2b(out, outlen, in, inlen, key, keylen);
-}
-
-#if defined(SUPERCOP)
-int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
-{
-  return blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
-}
-#endif
-
-#if defined(BLAKE2B_SELFTEST)
-#include <string.h>
-#include "blake2-kat.h"
-int main( void )
-{
-  uint8_t key[BLAKE2B_KEYBYTES];
-  uint8_t buf[BLAKE2_KAT_LENGTH];
-  size_t i, step;
-
-  for( i = 0; i < BLAKE2B_KEYBYTES; ++i )
-    key[i] = ( uint8_t )i;
-
-  for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
-    buf[i] = ( uint8_t )i;
-
-  /* Test simple API */
-  for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
-  {
-    uint8_t hash[BLAKE2B_OUTBYTES];
-    blake2b( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
-
-    if( 0 != memcmp( hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
-    {
-      goto fail;
-    }
-  }
-
-  /* Test streaming API */
-  for(step = 1; step < BLAKE2B_BLOCKBYTES; ++step) {
-    for (i = 0; i < BLAKE2_KAT_LENGTH; ++i) {
-      uint8_t hash[BLAKE2B_OUTBYTES];
-      blake2b_state S;
-      uint8_t * p = buf;
-      size_t mlen = i;
-      int err = 0;
-
-      if( (err = blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
-        goto fail;
-      }
-
-      while (mlen >= step) {
-        if ( (err = blake2b_update(&S, p, step)) < 0 ) {
-          goto fail;
-        }
-        mlen -= step;
-        p += step;
-      }
-      if ( (err = blake2b_update(&S, p, mlen)) < 0) {
-        goto fail;
-      }
-      if ( (err = blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
-        goto fail;
-      }
-
-      if (0 != memcmp(hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES)) {
-        goto fail;
-      }
-    }
-  }
-
-  puts( "ok" );
-  return 0;
-fail:
-  puts("error");
-  return -1;
-}
-#endif