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, 9 insertions, 9 deletions

diff --git a/arch/x86/crypto/aes-i586-asm_32.S b/arch/x86/crypto/aes-i586-asm_32.S
index 5252c3880177..b949ec2f9af4 100644
--- a/arch/x86/crypto/aes-i586-asm_32.S
+++ b/arch/x86/crypto/aes-i586-asm_32.S
@@ -41,14 +41,14 @@
 #define tlen 1024   // length of each of 4 'xor' arrays (256 32-bit words)
 
 /* offsets to parameters with one register pushed onto stack */
-#define tfm 8
+#define ctx 8
 #define out_blk 12
 #define in_blk 16
 
-/* offsets in crypto_tfm structure */
-#define klen (crypto_tfm_ctx_offset + 480)
-#define ekey (crypto_tfm_ctx_offset + 0)
-#define dkey (crypto_tfm_ctx_offset + 240)
+/* offsets in crypto_aes_ctx structure */
+#define klen (480)
+#define ekey (0)
+#define dkey (240)
 
 // register mapping for encrypt and decrypt subroutines
 
@@ -217,7 +217,7 @@
         do_col (table, r5,r0,r1,r4, r2,r3);             /* idx=r5 */
 
 // AES (Rijndael) Encryption Subroutine
-/* void aes_enc_blk(struct crypto_tfm *tfm, u8 *out_blk, const u8 *in_blk) */
+/* void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */
 
 .global  aes_enc_blk
 
@@ -228,7 +228,7 @@
 
 aes_enc_blk:
         push    %ebp
-        mov     tfm(%esp),%ebp
+        mov     ctx(%esp),%ebp
 
 // CAUTION: the order and the values used in these assigns 
 // rely on the register mappings
@@ -292,7 +292,7 @@ aes_enc_blk:
         ret
 
 // AES (Rijndael) Decryption Subroutine
-/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out_blk, const u8 *in_blk) */
+/* void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */
 
 .global  aes_dec_blk
 
@@ -303,7 +303,7 @@ aes_enc_blk:
 
 aes_dec_blk:
         push    %ebp
-        mov     tfm(%esp),%ebp
+        mov     ctx(%esp),%ebp
 
 // CAUTION: the order and the values used in these assigns 
 // rely on the register mappings