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[CRYPTO] scatterwalk: Move scatterwalk.h to linux/crypto

Browse Source 
The scatterwalk infrastructure is used by algorithms so it needs to
move out of crypto for future users that may live in drivers/crypto
or asm/*/crypto.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2007-12-07 18:52:49 +08:00
parent fe70f5dfe1
commit 42c271c6c5
8 changed files with 42 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
crypto/authenc.c
View File

@ -12,6 +12,7 @@
#include <crypto/algapi.h>
#include <crypto/authenc.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
@ -20,8 +21,6 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include "scatterwalk.h"
struct authenc_instance_ctx {
struct crypto_spawn auth;
struct crypto_spawn enc;

2
crypto/blkcipher.c
View File

@ -14,6 +14,7 @@
*
*/
#include <crypto/scatterwalk.h>
#include <linux/crypto.h>
#include <linux/errno.h>
#include <linux/hardirq.h>
@ -25,7 +26,6 @@
#include <linux/string.h>
#include "internal.h"
#include "scatterwalk.h"
enum {
BLKCIPHER_WALK_PHYS = 1 << 0,

3
crypto/digest.c
View File

@ -12,6 +12,7 @@
*
*/
#include <crypto/scatterwalk.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/hardirq.h>
@ -20,8 +21,6 @@
#include <linux/module.h>
#include <linux/scatterlist.h>
#include "internal.h"
static int init(struct hash_desc *desc)
{
struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);

3
crypto/gcm.c
View File

@ -10,13 +10,14 @@
#include <crypto/algapi.h>
#include <crypto/gf128mul.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "scatterwalk.h"
#include "internal.h"
struct gcm_instance_ctx {
struct crypto_spawn ctr;

29
crypto/internal.h
View File

@ -25,7 +25,6 @@
#include <linux/notifier.h>
#include <linux/rwsem.h>
#include <linux/slab.h>
#include <asm/kmap_types.h>
/* Crypto notification events. */
enum {
@ -50,34 +49,6 @@ extern struct list_head crypto_alg_list;
extern struct rw_semaphore crypto_alg_sem;
extern struct blocking_notifier_head crypto_chain;
static inline enum km_type crypto_kmap_type(int out)
{
enum km_type type;
if (in_softirq())
type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
else
type = out * (KM_USER1 - KM_USER0) + KM_USER0;
return type;
}
static inline void *crypto_kmap(struct page *page, int out)
{
return kmap_atomic(page, crypto_kmap_type(out));
}
static inline void crypto_kunmap(void *vaddr, int out)
{
kunmap_atomic(vaddr, crypto_kmap_type(out));
}
static inline void crypto_yield(u32 flags)
{
if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
cond_resched();
}
#ifdef CONFIG_PROC_FS
void __init crypto_init_proc(void);
void __exit crypto_exit_proc(void);

5
crypto/scatterwalk.c
View File

@ -13,6 +13,8 @@
* any later version.
*
*/
#include <crypto/scatterwalk.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
@ -20,9 +22,6 @@
#include <linux/highmem.h>
#include <linux/scatterlist.h>
#include "internal.h"
#include "scatterwalk.h"
static inline void memcpy_dir(void *buf, void *sgdata, size_t nbytes, int out)
{
void *src = out ? buf : sgdata;

2
crypto/xcbc.c
View File

@ -19,6 +19,7 @@
* Kazunori Miyazawa <miyazawa@linux-ipv6.org>
*/
#include <crypto/scatterwalk.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <linux/hardirq.h>
@ -27,7 +28,6 @@
#include <linux/rtnetlink.h>
#include <linux/slab.h>
#include <linux/scatterlist.h>
#include "internal.h"
static u_int32_t ks[12] = {0x01010101, 0x01010101, 0x01010101, 0x01010101,
0x02020202, 0x02020202, 0x02020202, 0x02020202,

36
crypto/scatterwalk.h → include/crypto/scatterwalk.h
View File

@ -1,9 +1,10 @@
/*
* Cryptographic API.
* Cryptographic scatter and gather helpers.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2002 Adam J. Richter <adam@yggdrasil.com>
* Copyright (c) 2004 Jean-Luc Cooke <jlcooke@certainkey.com>
* Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
@ -15,10 +16,41 @@
#ifndef _CRYPTO_SCATTERWALK_H
#define _CRYPTO_SCATTERWALK_H
#include <asm/kmap_types.h>
#include <crypto/algapi.h>
#include <linux/hardirq.h>
#include <linux/highmem.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include "internal.h"
static inline enum km_type crypto_kmap_type(int out)
{
enum km_type type;
if (in_softirq())
type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
else
type = out * (KM_USER1 - KM_USER0) + KM_USER0;
return type;
}
static inline void *crypto_kmap(struct page *page, int out)
{
return kmap_atomic(page, crypto_kmap_type(out));
}
static inline void crypto_kunmap(void *vaddr, int out)
{
kunmap_atomic(vaddr, crypto_kmap_type(out));
}
static inline void crypto_yield(u32 flags)
{
if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
cond_resched();
}
static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in,
struct scatter_walk *walk_out)