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crypto: arm64/sm3-ce - Use API partial block handling

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Use the Crypto API partial block handling.

Also remove the unnecessary SIMD fallback path.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2025-04-18 11:00:48 +08:00
parent 8266393e9b
commit 6ba8c5f5a4
1 changed files with 8 additions and 40 deletions
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48
arch/arm64/crypto/sm3-ce-glue.c
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@ -6,14 +6,11 @@
*/
#include <asm/neon.h>
#include <asm/simd.h>
#include <linux/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sm3.h>
#include <crypto/sm3_base.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/module.h>
MODULE_DESCRIPTION("SM3 secure hash using ARMv8 Crypto Extensions");
@ -26,50 +23,20 @@ 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()) {
sm3_update(shash_desc_ctx(desc), data, len);
return 0;
}
int remain;
kernel_neon_begin();
sm3_base_do_update(desc, data, len, sm3_ce_transform);
remain = sm3_base_do_update_blocks(desc, data, len, sm3_ce_transform);
kernel_neon_end();
return 0;
}
static int sm3_ce_final(struct shash_desc *desc, u8 *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);
kernel_neon_end();
return sm3_base_finish(desc, out);
return remain;
}
static int sm3_ce_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *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();
if (len)
sm3_base_do_update(desc, data, len, sm3_ce_transform);
sm3_base_do_finalize(desc, sm3_ce_transform);
sm3_base_do_finup(desc, data, len, sm3_ce_transform);
kernel_neon_end();
return sm3_base_finish(desc, out);
}
@ -77,11 +44,12 @@ static struct shash_alg sm3_alg = {
.digestsize = SM3_DIGEST_SIZE,
.init = sm3_base_init,
.update = sm3_ce_update,
.final = sm3_ce_final,
.finup = sm3_ce_finup,
.descsize = sizeof(struct sm3_state),
.descsize = SM3_STATE_SIZE,
.base.cra_name = "sm3",
.base.cra_driver_name = "sm3-ce",
.base.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.base.cra_blocksize = SM3_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
.base.cra_priority = 400,