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[CRYPTO] rmd: Use pointer form of endian swapping operations

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This patch converts the relevant code in the rmd implementations to
use the pointer form of the endian swapping operations.  This allows
certain architectures to generate more optimised code.  For example,
on sparc64 this more than halves the CPU cycles on a typical hashing
operation.

Based on a patch by David Miller.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2008-06-02 21:30:38 +10:00
parent 0936a94406
commit 5cdcc22f25
4 changed files with 8 additions and 8 deletions
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4
crypto/rmd128.c
View file

@ -44,7 +44,7 @@ struct rmd128_ctx {
#define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */ #define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */
#define ROUND(a, b, c, d, f, k, x, s) { \ #define ROUND(a, b, c, d, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \ (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
(a) = rol32((a), (s)); \ (a) = rol32((a), (s)); \
} }
@ -285,7 +285,7 @@ static void rmd128_final(struct crypto_tfm *tfm, u8 *out)
/* Store state in digest */ /* Store state in digest */
for (i = 0; i < 4; i++) for (i = 0; i < 4; i++)
dst[i] = cpu_to_le32(rctx->state[i]); dst[i] = cpu_to_le32p(&rctx->state[i]);
/* Wipe context */ /* Wipe context */
memset(rctx, 0, sizeof(*rctx)); memset(rctx, 0, sizeof(*rctx));

4
crypto/rmd160.c
View file

@ -47,7 +47,7 @@ struct rmd160_ctx {
#define F5(x, y, z) (x ^ (y | ~z)) #define F5(x, y, z) (x ^ (y | ~z))
#define ROUND(a, b, c, d, e, f, k, x, s) { \ #define ROUND(a, b, c, d, e, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \ (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
(a) = rol32((a), (s)) + (e); \ (a) = rol32((a), (s)) + (e); \
(c) = rol32((c), 10); \ (c) = rol32((c), 10); \
} }
@ -329,7 +329,7 @@ static void rmd160_final(struct crypto_tfm *tfm, u8 *out)
/* Store state in digest */ /* Store state in digest */
for (i = 0; i < 5; i++) for (i = 0; i < 5; i++)
dst[i] = cpu_to_le32(rctx->state[i]); dst[i] = cpu_to_le32p(&rctx->state[i]);
/* Wipe context */ /* Wipe context */
memset(rctx, 0, sizeof(*rctx)); memset(rctx, 0, sizeof(*rctx));

4
crypto/rmd256.c
View file

@ -44,7 +44,7 @@ struct rmd256_ctx {
#define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */ #define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */
#define ROUND(a, b, c, d, f, k, x, s) { \ #define ROUND(a, b, c, d, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \ (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
(a) = rol32((a), (s)); \ (a) = rol32((a), (s)); \
} }
@ -304,7 +304,7 @@ static void rmd256_final(struct crypto_tfm *tfm, u8 *out)
/* Store state in digest */ /* Store state in digest */
for (i = 0; i < 8; i++) for (i = 0; i < 8; i++)
dst[i] = cpu_to_le32(rctx->state[i]); dst[i] = cpu_to_le32p(&rctx->state[i]);
/* Wipe context */ /* Wipe context */
memset(rctx, 0, sizeof(*rctx)); memset(rctx, 0, sizeof(*rctx));

4
crypto/rmd320.c
View file

@ -47,7 +47,7 @@ struct rmd320_ctx {
#define F5(x, y, z) (x ^ (y | ~z)) #define F5(x, y, z) (x ^ (y | ~z))
#define ROUND(a, b, c, d, e, f, k, x, s) { \ #define ROUND(a, b, c, d, e, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \ (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
(a) = rol32((a), (s)) + (e); \ (a) = rol32((a), (s)) + (e); \
(c) = rol32((c), 10); \ (c) = rol32((c), 10); \
} }
@ -353,7 +353,7 @@ static void rmd320_final(struct crypto_tfm *tfm, u8 *out)
/* Store state in digest */ /* Store state in digest */
for (i = 0; i < 10; i++) for (i = 0; i < 10; i++)
dst[i] = cpu_to_le32(rctx->state[i]); dst[i] = cpu_to_le32p(&rctx->state[i]);
/* Wipe context */ /* Wipe context */
memset(rctx, 0, sizeof(*rctx)); memset(rctx, 0, sizeof(*rctx));