| /* 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); |