/* * Copyright (C) 2014 Filipe David Borba Manana * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License v2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #include #include #include "hash.h" static struct crypto_shash *tfm; int __init btrfs_hash_init(void) { tfm = crypto_alloc_shash("crc32c", 0, 0); return PTR_ERR_OR_ZERO(tfm); } const char* btrfs_crc32c_impl(void) { return crypto_tfm_alg_driver_name(crypto_shash_tfm(tfm)); } void btrfs_hash_exit(void) { crypto_free_shash(tfm); } u32 btrfs_crc32c(u32 crc, const void *address, unsigned int length) { SHASH_DESC_ON_STACK(shash, tfm); u32 *ctx = (u32 *)shash_desc_ctx(shash); int err; shash->tfm = tfm; shash->flags = 0; *ctx = crc; err = crypto_shash_update(shash, address, length); BUG_ON(err); return *ctx; } ='nds-private-remove' selected='selected'>nds-private-remove net-next plumbingsTobias Klauser

path: root/tools/perf/Documentation/Build.txt

Age	Commit message (Expand)	Author	Files	Lines