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[PATCH] Use sg_set_buf/sg_init_one where applicable

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This patch uses sg_set_buf/sg_init_one in some places where it was
duplicated.

Signed-off-by: David Hardeman <david@2gen.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
David Hardeman
2005-09-17 17:55:31 +10:00
committed by Herbert Xu
parent d32311fed7
commit 378f058cc4
10 changed files with 44 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
crypto/hmac.c
View File

@@ -18,18 +18,15 @@
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/scatterlist.h>
#include "internal.h"
static void hash_key(struct crypto_tfm *tfm, u8 *key, unsigned int keylen)
{
struct scatterlist tmp;
tmp.page = virt_to_page(key);
tmp.offset = offset_in_page(key);
tmp.length = keylen;
sg_set_buf(&tmp, key, keylen);
crypto_digest_digest(tfm, &tmp, 1, key);
}
int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
@@ -69,9 +66,7 @@ void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen)
for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
ipad[i] ^= 0x36;
tmp.page = virt_to_page(ipad);
tmp.offset = offset_in_page(ipad);
tmp.length = crypto_tfm_alg_blocksize(tfm);
sg_set_buf(&tmp, ipad, crypto_tfm_alg_blocksize(tfm));
crypto_digest_init(tfm);
crypto_digest_update(tfm, &tmp, 1);
@@ -103,16 +98,12 @@ void crypto_hmac_final(struct crypto_tfm *tfm, u8 *key,
for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
opad[i] ^= 0x5c;
tmp.page = virt_to_page(opad);
tmp.offset = offset_in_page(opad);
tmp.length = crypto_tfm_alg_blocksize(tfm);
sg_set_buf(&tmp, opad, crypto_tfm_alg_blocksize(tfm));
crypto_digest_init(tfm);
crypto_digest_update(tfm, &tmp, 1);
tmp.page = virt_to_page(out);
tmp.offset = offset_in_page(out);
tmp.length = crypto_tfm_alg_digestsize(tfm);
sg_set_buf(&tmp, out, crypto_tfm_alg_digestsize(tfm));
crypto_digest_update(tfm, &tmp, 1);
crypto_digest_final(tfm, out);

52
crypto/tcrypt.c
View File

@@ -21,7 +21,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/scatterlist.h>
#include <linux/string.h>
#include <linux/crypto.h>
#include <linux/highmem.h>
@@ -86,7 +86,6 @@ static void hexdump(unsigned char *buf, unsigned int len)
static void test_hash(char *algo, struct hash_testvec *template,
unsigned int tcount)
{
char *p;
unsigned int i, j, k, temp;
struct scatterlist sg[8];
char result[64];
@@ -116,10 +115,7 @@ static void test_hash(char *algo, struct hash_testvec *template,
printk("test %u:\n", i + 1);
memset(result, 0, 64);
p = hash_tv[i].plaintext;
sg[0].page = virt_to_page(p);
sg[0].offset = offset_in_page(p);
sg[0].length = hash_tv[i].psize;
sg_set_buf(&sg[0], hash_tv[i].plaintext, hash_tv[i].psize);
crypto_digest_init(tfm);
if (tfm->crt_u.digest.dit_setkey) {
@@ -154,10 +150,8 @@ static void test_hash(char *algo, struct hash_testvec *template,
hash_tv[i].plaintext + temp,
hash_tv[i].tap[k]);
temp += hash_tv[i].tap[k];
p = &xbuf[IDX[k]];
sg[k].page = virt_to_page(p);
sg[k].offset = offset_in_page(p);
sg[k].length = hash_tv[i].tap[k];
sg_set_buf(&sg[k], &xbuf[IDX[k]],
hash_tv[i].tap[k]);
}
crypto_digest_digest(tfm, sg, hash_tv[i].np, result);
@@ -179,7 +173,6 @@ static void test_hash(char *algo, struct hash_testvec *template,
static void test_hmac(char *algo, struct hmac_testvec *template,
unsigned int tcount)
{
char *p;
unsigned int i, j, k, temp;
struct scatterlist sg[8];
char result[64];
@@ -210,11 +203,8 @@ static void test_hmac(char *algo, struct hmac_testvec *template,
printk("test %u:\n", i + 1);
memset(result, 0, sizeof (result));
p = hmac_tv[i].plaintext;
klen = hmac_tv[i].ksize;
sg[0].page = virt_to_page(p);
sg[0].offset = offset_in_page(p);
sg[0].length = hmac_tv[i].psize;
sg_set_buf(&sg[0], hmac_tv[i].plaintext, hmac_tv[i].psize);
crypto_hmac(tfm, hmac_tv[i].key, &klen, sg, 1, result);
@@ -243,10 +233,8 @@ static void test_hmac(char *algo, struct hmac_testvec *template,
hmac_tv[i].plaintext + temp,
hmac_tv[i].tap[k]);
temp += hmac_tv[i].tap[k];
p = &xbuf[IDX[k]];
sg[k].page = virt_to_page(p);
sg[k].offset = offset_in_page(p);
sg[k].length = hmac_tv[i].tap[k];
sg_set_buf(&sg[k], &xbuf[IDX[k]],
hmac_tv[i].tap[k]);
}
crypto_hmac(tfm, hmac_tv[i].key, &klen, sg,
@@ -270,7 +258,7 @@ static void test_cipher(char *algo, int mode, int enc,
{
unsigned int ret, i, j, k, temp;
unsigned int tsize;
char *p, *q;
char *q;
struct crypto_tfm *tfm;
char *key;
struct cipher_testvec *cipher_tv;
@@ -330,10 +318,8 @@ static void test_cipher(char *algo, int mode, int enc,
goto out;
}
p = cipher_tv[i].input;
sg[0].page = virt_to_page(p);
sg[0].offset = offset_in_page(p);
sg[0].length = cipher_tv[i].ilen;
sg_set_buf(&sg[0], cipher_tv[i].input,
cipher_tv[i].ilen);
if (!mode) {
crypto_cipher_set_iv(tfm, cipher_tv[i].iv,
@@ -389,10 +375,8 @@ static void test_cipher(char *algo, int mode, int enc,
cipher_tv[i].input + temp,
cipher_tv[i].tap[k]);
temp += cipher_tv[i].tap[k];
p = &xbuf[IDX[k]];
sg[k].page = virt_to_page(p);
sg[k].offset = offset_in_page(p);
sg[k].length = cipher_tv[i].tap[k];
sg_set_buf(&sg[k], &xbuf[IDX[k]],
cipher_tv[i].tap[k]);
}
if (!mode) {
@@ -436,9 +420,7 @@ static int test_cipher_jiffies(struct crypto_tfm *tfm, int enc, char *p,
int bcount;
int ret;
sg[0].page = virt_to_page(p);
sg[0].offset = offset_in_page(p);
sg[0].length = blen;
sg_set_buf(&sg[0], p, blen);
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
@@ -464,9 +446,7 @@ static int test_cipher_cycles(struct crypto_tfm *tfm, int enc, char *p,
int ret = 0;
int i;
sg[0].page = virt_to_page(p);
sg[0].offset = offset_in_page(p);
sg[0].length = blen;
sg_set_buf(&sg[0], p, blen);
local_bh_disable();
local_irq_disable();
@@ -709,9 +689,7 @@ static void test_crc32c(void)
for (i = 0; i < NUMVEC; i++) {
for (j = 0; j < VECSIZE; j++)
test_vec[i][j] = ++b;
sg[i].page = virt_to_page(test_vec[i]);
sg[i].offset = offset_in_page(test_vec[i]);
sg[i].length = VECSIZE;
sg_set_buf(&sg[i], test_vec[i], VECSIZE);
}
seed = SEEDTESTVAL;