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authorChang S. Bae <chang.seok.bae@intel.com>2024-03-23 00:04:59 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2024-04-02 04:49:39 +0200
commite3299a4c1c4265535625df4d947ffd119f146bfc (patch)
tree4cc60a54e7d965735baf5f766c27e69d5455bb81 /arch/x86/crypto
parentcrypto: x86/aesni - Rearrange AES key size check (diff)
downloadlinux-e3299a4c1c4265535625df4d947ffd119f146bfc.tar.xz
linux-e3299a4c1c4265535625df4d947ffd119f146bfc.zip
crypto: x86/aesni - Update aesni_set_key() to return void
The aesni_set_key() implementation has no error case, yet its prototype specifies to return an error code. Modify the function prototype to return void and adjust the related code. Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86/crypto')
-rw-r--r--arch/x86/crypto/aesni-intel_asm.S5
-rw-r--r--arch/x86/crypto/aesni-intel_glue.c8
2 files changed, 6 insertions, 7 deletions
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 411d8c83e88a..7ecb55cae3d6 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1820,8 +1820,8 @@ SYM_FUNC_START_LOCAL(_key_expansion_256b)
SYM_FUNC_END(_key_expansion_256b)
/*
- * int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
- * unsigned int key_len)
+ * void aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
+ * unsigned int key_len)
*/
SYM_FUNC_START(aesni_set_key)
FRAME_BEGIN
@@ -1926,7 +1926,6 @@ SYM_FUNC_START(aesni_set_key)
sub $0x10, UKEYP
cmp TKEYP, KEYP
jb .Ldec_key_loop
- xor AREG, AREG
#ifndef __x86_64__
popl KEYP
#endif
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 8b3b17b065ad..0ea3abaaa645 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -87,8 +87,8 @@ static inline void *aes_align_addr(void *addr)
return PTR_ALIGN(addr, AESNI_ALIGN);
}
-asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
- unsigned int key_len);
+asmlinkage void aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
+ unsigned int key_len);
asmlinkage void aesni_enc(const void *ctx, u8 *out, const u8 *in);
asmlinkage void aesni_dec(const void *ctx, u8 *out, const u8 *in);
asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out,
@@ -241,9 +241,9 @@ static int aes_set_key_common(struct crypto_aes_ctx *ctx,
return err;
kernel_fpu_begin();
- err = aesni_set_key(ctx, in_key, key_len);
+ aesni_set_key(ctx, in_key, key_len);
kernel_fpu_end();
- return err;
+ return 0;
}
static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,