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crypto: x86/ghash - use le128 instead of u128

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The u128 struct type is going away, so make ghash-clmulni-intel use
le128 instead.  Note that the field names a and b swapped, as they were
backwards with u128.  (a is meant to be high-order and b low-order.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2022-12-19 21:40:41 -08:00 • committed by Herbert Xu
parent 116db2704c
commit f1740751f7
2 changed files with 8 additions and 8 deletions
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4
arch/x86/crypto/ghash-clmulni-intel_asm.S
View file

@ -88,7 +88,7 @@ SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
RET
SYM_FUNC_END(__clmul_gf128mul_ble)
/* void clmul_ghash_mul(char *dst, const u128 *shash) */
/* void clmul_ghash_mul(char *dst, const le128 *shash) */
SYM_FUNC_START(clmul_ghash_mul)
FRAME_BEGIN
movups (%rdi), DATA
@ -104,7 +104,7 @@ SYM_FUNC_END(clmul_ghash_mul)
/*
* void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
* const u128 *shash);
* const le128 *shash);
*/
SYM_FUNC_START(clmul_ghash_update)
FRAME_BEGIN

12
arch/x86/crypto/ghash-clmulni-intel_glue.c
View file

@ -24,17 +24,17 @@
#define GHASH_BLOCK_SIZE 16
#define GHASH_DIGEST_SIZE 16
void clmul_ghash_mul(char *dst, const u128 *shash);
void clmul_ghash_mul(char *dst, const le128 *shash);
void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
const u128 *shash);
const le128 *shash);
struct ghash_async_ctx {
struct cryptd_ahash *cryptd_tfm;
};
struct ghash_ctx {
u128 shash;
le128 shash;
};
struct ghash_desc_ctx {
@ -64,11 +64,11 @@ static int ghash_setkey(struct crypto_shash *tfm,
a = get_unaligned_be64(key);
b = get_unaligned_be64(key + 8);
ctx->shash.a = (b << 1) | (a >> 63);
ctx->shash.b = (a << 1) | (b >> 63);
ctx->shash.a = cpu_to_le64((a << 1) | (b >> 63));
ctx->shash.b = cpu_to_le64((b << 1) | (a >> 63));
if (a >> 63)
ctx->shash.b ^= ((u64)0xc2) << 56;
ctx->shash.a ^= cpu_to_le64((u64)0xc2 << 56);
return 0;
}