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Message-Id: <20210610134459.28541-3-tianjia.zhang@linux.alibaba.com>
Date: Thu, 10 Jun 2021 21:44:58 +0800
From: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
To: Herbert Xu <herbert@...dor.apana.org.au>,
"David S. Miller" <davem@...emloft.net>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
"H. Peter Anvin" <hpa@...or.com>,
Gilad Ben-Yossef <gilad@...yossef.com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
"Markku-Juhani O . Saarinen" <mjos@....fi>,
Jussi Kivilinna <jussi.kivilinna@....fi>, x86@...nel.org,
linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Cc: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Subject: [PATCH 2/3] crypto: arm64/sm4-ce - Make dependent on sm4 library instead of sm4-generic
SM4 library is abstracted from sm4-generic algorithm, sm4-ce can depend on
the SM4 library instead of sm4-generic, and some functions in sm4-generic
do not need to be exported.
Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
---
arch/arm64/crypto/Kconfig | 2 +-
arch/arm64/crypto/sm4-ce-glue.c | 14 +++++++++++---
crypto/sm4_generic.c | 15 ++++++---------
include/crypto/sm4.h | 5 -----
4 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index b8eb0453123d..55f19450091b 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -51,7 +51,7 @@ config CRYPTO_SM4_ARM64_CE
tristate "SM4 symmetric cipher (ARMv8.2 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
- select CRYPTO_SM4
+ select CRYPTO_LIB_SM4
config CRYPTO_GHASH_ARM64_CE
tristate "GHASH/AES-GCM using ARMv8 Crypto Extensions"
diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c
index 2754c875d39c..ba2261ec54d5 100644
--- a/arch/arm64/crypto/sm4-ce-glue.c
+++ b/arch/arm64/crypto/sm4-ce-glue.c
@@ -17,12 +17,20 @@ MODULE_LICENSE("GPL v2");
asmlinkage void sm4_ce_do_crypt(const u32 *rk, void *out, const void *in);
+int sm4_ce_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ return crypto_sm4_expand_key(ctx, in_key, key_len);
+}
+
static void sm4_ce_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
if (!crypto_simd_usable()) {
- crypto_sm4_encrypt(tfm, out, in);
+ crypto_sm4_do_crypt(ctx->rkey_enc, out, in);
} else {
kernel_neon_begin();
sm4_ce_do_crypt(ctx->rkey_enc, out, in);
@@ -35,7 +43,7 @@ static void sm4_ce_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
if (!crypto_simd_usable()) {
- crypto_sm4_decrypt(tfm, out, in);
+ crypto_sm4_do_crypt(ctx->rkey_dec, out, in);
} else {
kernel_neon_begin();
sm4_ce_do_crypt(ctx->rkey_dec, out, in);
@@ -54,7 +62,7 @@ static struct crypto_alg sm4_ce_alg = {
.cra_u.cipher = {
.cia_min_keysize = SM4_KEY_SIZE,
.cia_max_keysize = SM4_KEY_SIZE,
- .cia_setkey = crypto_sm4_set_key,
+ .cia_setkey = sm4_ce_setkey,
.cia_encrypt = sm4_ce_encrypt,
.cia_decrypt = sm4_ce_decrypt
}
diff --git a/crypto/sm4_generic.c b/crypto/sm4_generic.c
index 7d1c25244268..c06856110126 100644
--- a/crypto/sm4_generic.c
+++ b/crypto/sm4_generic.c
@@ -28,34 +28,31 @@
*
* Return: 0 on success; -EINVAL on failure (only happens for bad key lengths)
*/
-int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+static int sm4_setkey(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
return crypto_sm4_expand_key(ctx, in_key, key_len);
}
-EXPORT_SYMBOL_GPL(crypto_sm4_set_key);
/* encrypt a block of text */
-void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+static void sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_sm4_do_crypt(ctx->rkey_enc, out, in);
}
-EXPORT_SYMBOL_GPL(crypto_sm4_encrypt);
/* decrypt a block of text */
-void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+static void sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_sm4_do_crypt(ctx->rkey_dec, out, in);
}
-EXPORT_SYMBOL_GPL(crypto_sm4_decrypt);
static struct crypto_alg sm4_alg = {
.cra_name = "sm4",
@@ -69,9 +66,9 @@ static struct crypto_alg sm4_alg = {
.cipher = {
.cia_min_keysize = SM4_KEY_SIZE,
.cia_max_keysize = SM4_KEY_SIZE,
- .cia_setkey = crypto_sm4_set_key,
- .cia_encrypt = crypto_sm4_encrypt,
- .cia_decrypt = crypto_sm4_decrypt
+ .cia_setkey = sm4_setkey,
+ .cia_encrypt = sm4_encrypt,
+ .cia_decrypt = sm4_decrypt
}
}
};
diff --git a/include/crypto/sm4.h b/include/crypto/sm4.h
index 39273121c145..73c15179e4c6 100644
--- a/include/crypto/sm4.h
+++ b/include/crypto/sm4.h
@@ -45,9 +45,4 @@ int crypto_sm4_expand_key(struct crypto_sm4_ctx *ctx, const u8 *in_key,
*/
void crypto_sm4_do_crypt(const u32 *rk, u8 *out, const u8 *in);
-int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key,
- unsigned int key_len);
-void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in);
-void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in);
-
#endif
--
2.19.1.3.ge56e4f7
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