linux/crypto/scompress.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Synchronous Compression operations
 *
 * Copyright 2015 LG Electronics Inc.
 * Copyright (c) 2016, Intel Corporation
 * Author: Giovanni Cabiddu <[email protected]>
 */

#include <crypto/internal/acompress.h>
#include <crypto/internal/scompress.h>
#include <crypto/scatterwalk.h>
#include <linux/cryptouser.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
#include <net/netlink.h>

#include "compress.h"

struct scomp_scratch { … };

static DEFINE_PER_CPU(struct scomp_scratch, scomp_scratch) = …;

static const struct crypto_type crypto_scomp_type;
static int scomp_scratch_users;
static DEFINE_MUTEX(scomp_lock);

static int __maybe_unused crypto_scomp_report(
	struct sk_buff *skb, struct crypto_alg *alg)
{ … }

static void crypto_scomp_show(struct seq_file *m, struct crypto_alg *alg)
	__maybe_unused;

static void crypto_scomp_show(struct seq_file *m, struct crypto_alg *alg)
{ … }

static void crypto_scomp_free_scratches(void)
{ … }

static int crypto_scomp_alloc_scratches(void)
{ … }

static int crypto_scomp_init_tfm(struct crypto_tfm *tfm)
{ … }

static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
{ … }

static int scomp_acomp_compress(struct acomp_req *req)
{ … }

static int scomp_acomp_decompress(struct acomp_req *req)
{ … }

static void crypto_exit_scomp_ops_async(struct crypto_tfm *tfm)
{ … }

int crypto_init_scomp_ops_async(struct crypto_tfm *tfm)
{ … }

struct acomp_req *crypto_acomp_scomp_alloc_ctx(struct acomp_req *req)
{ … }

void crypto_acomp_scomp_free_ctx(struct acomp_req *req)
{ … }

static const struct crypto_type crypto_scomp_type = …;

int crypto_register_scomp(struct scomp_alg *alg)
{ … }
EXPORT_SYMBOL_GPL(…);

void crypto_unregister_scomp(struct scomp_alg *alg)
{ … }
EXPORT_SYMBOL_GPL(…);

int crypto_register_scomps(struct scomp_alg *algs, int count)
{ … }
EXPORT_SYMBOL_GPL(…);

void crypto_unregister_scomps(struct scomp_alg *algs, int count)
{ … }
EXPORT_SYMBOL_GPL(…);

MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;