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[RFC,11/20] crypto: arm/aes-neonbs - switch to library version of key expansion routine

Message ID 20190612124838.2492-12-ard.biesheuvel@linaro.org
State Superseded
Headers show
Series AES cleanup | expand

Commit Message

Ard Biesheuvel June 12, 2019, 12:48 p.m. UTC 
Switch to the new AES library that also provides an implementation of
the AES key expansion routine. This removes the dependency on the
generic AES cipher, allowing it to be omitted entirely in the future.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
 arch/arm/crypto/Kconfig           | 2 +-
 arch/arm/crypto/aes-neonbs-glue.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

-- 
2.20.1
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Patch

diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index a95322b59799..b24df84a1d7a 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -82,8 +82,8 @@  config CRYPTO_AES_ARM_BS
 	tristate "Bit sliced AES using NEON instructions"
 	depends on KERNEL_MODE_NEON
 	select CRYPTO_BLKCIPHER
+	select CRYPTO_LIB_AES
 	select CRYPTO_SIMD
-	select CRYPTO_AES
 	help
 	  Use a faster and more secure NEON based implementation of AES in CBC,
 	  CTR and XTS modes
diff --git a/arch/arm/crypto/aes-neonbs-glue.c b/arch/arm/crypto/aes-neonbs-glue.c
index 617c2c99ebfb..f43c9365b6a9 100644
--- a/arch/arm/crypto/aes-neonbs-glue.c
+++ b/arch/arm/crypto/aes-neonbs-glue.c
@@ -64,7 +64,7 @@  static int aesbs_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
 	struct crypto_aes_ctx rk;
 	int err;
 
-	err = crypto_aes_expand_key(&rk, in_key, key_len);
+	err = aes_expandkey(&rk, in_key, key_len);
 	if (err)
 		return err;
 
@@ -123,7 +123,7 @@  static int aesbs_cbc_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
 	struct crypto_aes_ctx rk;
 	int err;
 
-	err = crypto_aes_expand_key(&rk, in_key, key_len);
+	err = aes_expandkey(&rk, in_key, key_len);
 	if (err)
 		return err;