/* General purpose hashing library
   *
   * That's a start of a kernel hashing library, which can be extended
   * with further algorithms in future. arch_fast_hash{2,}() will
   * eventually resolve to an architecture optimized implementation.
   *
   * Copyright 2013 Francesco Fusco <ffusco@redhat.com>
   * Copyright 2013 Daniel Borkmann <dborkman@redhat.com>
   * Copyright 2013 Thomas Graf <tgraf@redhat.com>
   * Licensed under the GNU General Public License, version 2.0 (GPLv2)
   */
  
  #include <linux/jhash.h>
  #include <linux/hash.h>
  #include <linux/cache.h>
  
  static struct fast_hash_ops arch_hash_ops __read_mostly = {
  	.hash  = jhash,
  	.hash2 = jhash2,
  };
  
  u32 arch_fast_hash(const void *data, u32 len, u32 seed)
  {
  	return arch_hash_ops.hash(data, len, seed);
  }
  EXPORT_SYMBOL_GPL(arch_fast_hash);
  
  u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed)
  {
  	return arch_hash_ops.hash2(data, len, seed);
  }
  EXPORT_SYMBOL_GPL(arch_fast_hash2);
  
  static int __init hashlib_init(void)
  {
  	setup_arch_fast_hash(&arch_hash_ops);
  	return 0;
  }
  early_initcall(hashlib_init);