Commit 1523eaed authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: riscv/sm3 - Use API partial block handling 



Use the Crypto API partial block handling.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 045f17b4

arch/riscv/crypto/sm3-riscv64-glue.c

+16 −31
Original line number Diff line number Diff line
@@ -13,8 +13,9 @@ 
#include <asm/vector.h>

#include <crypto/internal/hash.h>

#include <crypto/internal/simd.h>

#include <crypto/sm3.h>

#include <crypto/sm3_base.h>

#include <linux/linkage.h>

#include <linux/kernel.h>

#include <linux/module.h>



/*
@@ -24,8 +25,8 @@ 
asmlinkage void sm3_transform_zvksh_zvkb(

	struct sm3_state *state, const u8 *data, int num_blocks);



static int riscv64_sm3_update(struct shash_desc *desc, const u8 *data,

			      unsigned int len)

static void sm3_block(struct sm3_state *state, const u8 *data,

		      int num_blocks)

{

	/*

	 * Ensure struct sm3_state begins directly with the SM3
@@ -35,52 +36,36 @@ static int riscv64_sm3_update(struct shash_desc *desc, const u8 *data, 


	if (crypto_simd_usable()) {

		kernel_vector_begin();

		sm3_base_do_update(desc, data, len, sm3_transform_zvksh_zvkb);

		sm3_transform_zvksh_zvkb(state, data, num_blocks);

		kernel_vector_end();

	} else {

		sm3_update(shash_desc_ctx(desc), data, len);

		sm3_block_generic(state, data, num_blocks);

	}

	return 0;

}



static int riscv64_sm3_finup(struct shash_desc *desc, const u8 *data,

			     unsigned int len, u8 *out)

static int riscv64_sm3_update(struct shash_desc *desc, const u8 *data,

			      unsigned int len)

{

	struct sm3_state *ctx;



	if (crypto_simd_usable()) {

		kernel_vector_begin();

		if (len)

			sm3_base_do_update(desc, data, len,

					   sm3_transform_zvksh_zvkb);

		sm3_base_do_finalize(desc, sm3_transform_zvksh_zvkb);

		kernel_vector_end();



		return sm3_base_finish(desc, out);

	return sm3_base_do_update_blocks(desc, data, len, sm3_block);

}



	ctx = shash_desc_ctx(desc);

	if (len)

		sm3_update(ctx, data, len);

	sm3_final(ctx, out);



	return 0;

}



static int riscv64_sm3_final(struct shash_desc *desc, u8 *out)

static int riscv64_sm3_finup(struct shash_desc *desc, const u8 *data,

			     unsigned int len, u8 *out)

{

	return riscv64_sm3_finup(desc, NULL, 0, out);

	sm3_base_do_finup(desc, data, len, sm3_block);

	return sm3_base_finish(desc, out);

}



static struct shash_alg riscv64_sm3_alg = {

	.init = sm3_base_init,

	.update = riscv64_sm3_update,

	.final = riscv64_sm3_final,

	.finup = riscv64_sm3_finup,

	.descsize = sizeof(struct sm3_state),

	.descsize = SM3_STATE_SIZE,

	.digestsize = SM3_DIGEST_SIZE,

	.base = {

		.cra_blocksize = SM3_BLOCK_SIZE,

		.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |

			     CRYPTO_AHASH_ALG_FINUP_MAX,

		.cra_priority = 300,

		.cra_name = "sm3",

		.cra_driver_name = "sm3-riscv64-zvksh-zvkb",