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crypto: arm64/sm3-ce - make dependent on sm3 library 

SM3 generic library is stand-alone implementation, sm3-ce can depend
on the SM3 library instead of sm3-generic.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tianjia Zhang 2022-01-07 20:06:56 +08:00 committed by Herbert Xu
parent eb90686d5d
commit f3a03d319d
2 changed files with 21 additions and 9 deletions
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2
arch/arm64/crypto/Kconfig
View File

@ -45,7 +45,7 @@ config CRYPTO_SM3_ARM64_CE
tristate "SM3 digest algorithm (ARMv8.2 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SM3
select CRYPTO_LIB_SM3
config CRYPTO_SM4_ARM64_CE
tristate "SM4 symmetric cipher (ARMv8.2 Crypto Extensions)"

28
arch/arm64/crypto/sm3-ce-glue.c
View File

@ -26,8 +26,10 @@ asmlinkage void sm3_ce_transform(struct sm3_state *sst, u8 const *src,
static int sm3_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
if (!crypto_simd_usable())
return crypto_sm3_update(desc, data, len);
if (!crypto_simd_usable()) {
sm3_update(shash_desc_ctx(desc), data, len);
return 0;
}
kernel_neon_begin();
sm3_base_do_update(desc, data, len, sm3_ce_transform);
@ -38,8 +40,10 @@ static int sm3_ce_update(struct shash_desc *desc, const u8 *data,
static int sm3_ce_final(struct shash_desc *desc, u8 *out)
{
if (!crypto_simd_usable())
return crypto_sm3_finup(desc, NULL, 0, out);
if (!crypto_simd_usable()) {
sm3_final(shash_desc_ctx(desc), out);
return 0;
}
kernel_neon_begin();
sm3_base_do_finalize(desc, sm3_ce_transform);
@ -51,14 +55,22 @@ static int sm3_ce_final(struct shash_desc *desc, u8 *out)
static int sm3_ce_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (!crypto_simd_usable())
return crypto_sm3_finup(desc, data, len, out);
if (!crypto_simd_usable()) {
struct sm3_state *sctx = shash_desc_ctx(desc);
if (len)
sm3_update(sctx, data, len);
sm3_final(sctx, out);
return 0;
}
kernel_neon_begin();
sm3_base_do_update(desc, data, len, sm3_ce_transform);
if (len)
sm3_base_do_update(desc, data, len, sm3_ce_transform);
sm3_base_do_finalize(desc, sm3_ce_transform);
kernel_neon_end();
return sm3_ce_final(desc, out);
return sm3_base_finish(desc, out);
}
static struct shash_alg sm3_alg = {