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authorHerbert Xu <herbert@gondor.apana.org.au>2005-10-30 21:25:15 +1100
committerDavid S. Miller <davem@sunset.davemloft.net>2006-01-09 14:15:34 -0800
commit06ace7a9bafeb9047352707eb79e8eaa0dfdf5f2 (patch)
treefa22bbc2e8ea5bee00b6aec353783144b6f8735a /crypto/wp512.c
parent2df15fffc612b53b2c8e4ff3c981a82441bc00ae (diff)
downloadlinux-06ace7a9bafeb9047352707eb79e8eaa0dfdf5f2.tar.gz
[CRYPTO] Use standard byte order macros wherever possible
A lot of crypto code needs to read/write a 32-bit/64-bit words in a specific gender. Many of them open code them by reading/writing one byte at a time. This patch converts all the applicable usages over to use the standard byte order macros. This is based on a previous patch by Denis Vlasenko. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/wp512.c')
-rw-r--r--crypto/wp512.c32
1 files changed, 8 insertions, 24 deletions
diff --git a/crypto/wp512.c b/crypto/wp512.c
index fd6e20e1f291..b226a126cfae 100644
--- a/crypto/wp512.c
+++ b/crypto/wp512.c
@@ -22,8 +22,10 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
+#include <asm/byteorder.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
+#include <linux/types.h>
#define WP512_DIGEST_SIZE 64
#define WP384_DIGEST_SIZE 48
@@ -778,19 +780,10 @@ static void wp512_process_buffer(struct wp512_ctx *wctx) {
u64 block[8]; /* mu(buffer) */
u64 state[8]; /* the cipher state */
u64 L[8];
- u8 *buffer = wctx->buffer;
+ const __be64 *buffer = (const __be64 *)wctx->buffer;
- for (i = 0; i < 8; i++, buffer += 8) {
- block[i] =
- (((u64)buffer[0] ) << 56) ^
- (((u64)buffer[1] & 0xffL) << 48) ^
- (((u64)buffer[2] & 0xffL) << 40) ^
- (((u64)buffer[3] & 0xffL) << 32) ^
- (((u64)buffer[4] & 0xffL) << 24) ^
- (((u64)buffer[5] & 0xffL) << 16) ^
- (((u64)buffer[6] & 0xffL) << 8) ^
- (((u64)buffer[7] & 0xffL) );
- }
+ for (i = 0; i < 8; i++)
+ block[i] = be64_to_cpu(buffer[i]);
state[0] = block[0] ^ (K[0] = wctx->hash[0]);
state[1] = block[1] ^ (K[1] = wctx->hash[1]);
@@ -1069,7 +1062,7 @@ static void wp512_final(void *ctx, u8 *out)
u8 *bitLength = wctx->bitLength;
int bufferBits = wctx->bufferBits;
int bufferPos = wctx->bufferPos;
- u8 *digest = out;
+ __be64 *digest = (__be64 *)out;
buffer[bufferPos] |= 0x80U >> (bufferBits & 7);
bufferPos++;
@@ -1088,17 +1081,8 @@ static void wp512_final(void *ctx, u8 *out)
memcpy(&buffer[WP512_BLOCK_SIZE - WP512_LENGTHBYTES],
bitLength, WP512_LENGTHBYTES);
wp512_process_buffer(wctx);
- for (i = 0; i < WP512_DIGEST_SIZE/8; i++) {
- digest[0] = (u8)(wctx->hash[i] >> 56);
- digest[1] = (u8)(wctx->hash[i] >> 48);
- digest[2] = (u8)(wctx->hash[i] >> 40);
- digest[3] = (u8)(wctx->hash[i] >> 32);
- digest[4] = (u8)(wctx->hash[i] >> 24);
- digest[5] = (u8)(wctx->hash[i] >> 16);
- digest[6] = (u8)(wctx->hash[i] >> 8);
- digest[7] = (u8)(wctx->hash[i] );
- digest += 8;
- }
+ for (i = 0; i < WP512_DIGEST_SIZE/8; i++)
+ digest[i] = cpu_to_be64(wctx->hash[i]);
wctx->bufferBits = bufferBits;
wctx->bufferPos = bufferPos;
}