crypto: aes - Export x86 AES encrypt/decrypt functions

Intel AES-NI AES acceleration instructions touch XMM state, to use
that in soft_irq context, general x86 AES implementation is used as
fallback. The first parameter is changed from struct crypto_tfm * to
struct crypto_aes_ctx * to make it easier to deal with 16 bytes
alignment requirement of AES-NI implementation.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 16 insertions, 4 deletions

diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c
index 71f457827116..49ae9fe32b22 100644
--- a/arch/x86/crypto/aes_glue.c
+++ b/arch/x86/crypto/aes_glue.c
@@ -5,17 +5,29 @@
 
 #include <crypto/aes.h>
 
-asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
-asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
+asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
+asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
+
+void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+{
+        aes_enc_blk(ctx, dst, src);
+}
+EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
+
+void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+{
+        aes_dec_blk(ctx, dst, src);
+}
+EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
 
 static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-        aes_enc_blk(tfm, dst, src);
+        aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
 }
 
 static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-        aes_dec_blk(tfm, dst, src);
+        aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
 }
 
 static struct crypto_alg aes_alg = {