Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: arm64/sm3-neon - Use API partial block handling
Use the Crypto API partial block handling.
Also remove the unnecessary SIMD fallback path.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+8
-40
+8
-40
arch/arm64/crypto/sm3-neon-glue.c
+8
-40
arch/arm64/crypto/sm3-neon-glue.c
···
6
6
*/
7
7
8
8
#include <asm/neon.h>
9
-
#include <asm/simd.h>
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-
#include <linux/unaligned.h>
11
9
#include <crypto/internal/hash.h>
12
-
#include <crypto/internal/simd.h>
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10
#include <crypto/sm3.h>
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11
#include <crypto/sm3_base.h>
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12
#include <linux/cpufeature.h>
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-
#include <linux/crypto.h>
13
+
#include <linux/kernel.h>
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14
#include <linux/module.h>
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15
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16
···
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23
static int sm3_neon_update(struct shash_desc *desc, const u8 *data,
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24
unsigned int len)
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{
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-
if (!crypto_simd_usable()) {
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-
sm3_update(shash_desc_ctx(desc), data, len);
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-
return 0;
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-
}
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+
int remain;
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kernel_neon_begin();
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-
sm3_base_do_update(desc, data, len, sm3_neon_transform);
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+
remain = sm3_base_do_update_blocks(desc, data, len, sm3_neon_transform);
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kernel_neon_end();
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-
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-
return 0;
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-
}
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-
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-
static int sm3_neon_final(struct shash_desc *desc, u8 *out)
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-
{
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-
if (!crypto_simd_usable()) {
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-
sm3_final(shash_desc_ctx(desc), out);
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-
return 0;
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-
}
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-
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-
kernel_neon_begin();
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-
sm3_base_do_finalize(desc, sm3_neon_transform);
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-
kernel_neon_end();
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-
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-
return sm3_base_finish(desc, out);
31
+
return remain;
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32
}
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33
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static int sm3_neon_finup(struct shash_desc *desc, const u8 *data,
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35
unsigned int len, u8 *out)
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36
{
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-
if (!crypto_simd_usable()) {
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-
struct sm3_state *sctx = shash_desc_ctx(desc);
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-
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-
if (len)
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-
sm3_update(sctx, data, len);
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-
sm3_final(sctx, out);
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-
return 0;
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-
}
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-
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37
kernel_neon_begin();
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-
if (len)
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-
sm3_base_do_update(desc, data, len, sm3_neon_transform);
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-
sm3_base_do_finalize(desc, sm3_neon_transform);
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+
sm3_base_do_finup(desc, data, len, sm3_neon_transform);
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39
kernel_neon_end();
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-
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40
return sm3_base_finish(desc, out);
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41
}
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42
···
41
74
.digestsize = SM3_DIGEST_SIZE,
42
75
.init = sm3_base_init,
43
76
.update = sm3_neon_update,
44
-
.final = sm3_neon_final,
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77
.finup = sm3_neon_finup,
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-
.descsize = sizeof(struct sm3_state),
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+
.descsize = SM3_STATE_SIZE,
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79
.base.cra_name = "sm3",
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80
.base.cra_driver_name = "sm3-neon",
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+
.base.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
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+
CRYPTO_AHASH_ALG_FINUP_MAX,
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83
.base.cra_blocksize = SM3_BLOCK_SIZE,
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84
.base.cra_module = THIS_MODULE,
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85
.base.cra_priority = 200,