Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] tcrypt: Forbid tcrypt from being built-in
  [CRYPTO] aes: Add wrappers for assembly routines
  [CRYPTO] tcrypt: Speed benchmark support for digest algorithms
  [CRYPTO] tcrypt: Return -EAGAIN from module_init()
  [CRYPTO] api: Allow replacement when registering new algorithms
  [CRYPTO] api: Removed const from cra_name/cra_driver_name
  [CRYPTO] api: Added cra_init/cra_exit
  [CRYPTO] api: Fixed incorrect passing of context instead of tfm
  [CRYPTO] padlock: Rearrange context structure to reduce code size
  [CRYPTO] all: Pass tfm instead of ctx to algorithms
  [CRYPTO] digest: Remove unnecessary zeroing during init
  [CRYPTO] aes-i586: Get rid of useless function wrappers
  [CRYPTO] digest: Add alignment handling
  [CRYPTO] khazad: Use 32-bit reads on key

3 files changed, 27 insertions, 25 deletions

diff --git a/arch/i386/crypto/aes-i586-asm.S b/arch/i386/crypto/aes-i586-asm.S
index 911b153..f942f0c 100644
--- a/arch/i386/crypto/aes-i586-asm.S
+++ b/arch/i386/crypto/aes-i586-asm.S
@@ -36,22 +36,19 @@
 .file "aes-i586-asm.S"
 .text
 
-// aes_rval aes_enc_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])//
-// aes_rval aes_dec_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1])//
-	
-#define tlen 1024   // length of each of 4 'xor' arrays (256 32-bit words)
+#include <asm/asm-offsets.h>
 
-// offsets to parameters with one register pushed onto stack
-
-#define in_blk    8  // input byte array address parameter
-#define out_blk  12  // output byte array address parameter
-#define ctx      16  // AES context structure
+#define tlen 1024   // length of each of 4 'xor' arrays (256 32-bit words)
 
-// offsets in context structure
+/* offsets to parameters with one register pushed onto stack */
+#define tfm 8
+#define out_blk 12
+#define in_blk 16
 
-#define ekey     0   // encryption key schedule base address
-#define nrnd   256   // number of rounds
-#define dkey   260   // decryption key schedule base address
+/* offsets in crypto_tfm structure */
+#define ekey (crypto_tfm_ctx_offset + 0)
+#define nrnd (crypto_tfm_ctx_offset + 256)
+#define dkey (crypto_tfm_ctx_offset + 260)
 
 // register mapping for encrypt and decrypt subroutines
 
@@ -220,6 +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) */
 
 .global  aes_enc_blk
 
@@ -230,7 +228,7 @@
 
 aes_enc_blk:
 	push    %ebp
-	mov     ctx(%esp),%ebp      // pointer to context
+	mov     tfm(%esp),%ebp
 
 // CAUTION: the order and the values used in these assigns 
 // rely on the register mappings
@@ -295,6 +293,7 @@ aes_enc_blk:
 	ret
 
 // AES (Rijndael) Decryption Subroutine
+/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out_blk, const u8 *in_blk) */
 
 .global  aes_dec_blk
 
@@ -305,7 +304,7 @@ aes_enc_blk:
 
 aes_dec_blk:
 	push    %ebp
-	mov     ctx(%esp),%ebp       // pointer to context
+	mov     tfm(%esp),%ebp
 
 // CAUTION: the order and the values used in these assigns 
 // rely on the register mappings
diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c
index a50397b..d3806da 100644
--- a/arch/i386/crypto/aes.c
+++ b/arch/i386/crypto/aes.c
@@ -45,8 +45,8 @@
 #include <linux/crypto.h>
 #include <linux/linkage.h>
 
-asmlinkage void aes_enc_blk(const u8 *src, u8 *dst, void *ctx);
-asmlinkage void aes_dec_blk(const u8 *src, u8 *dst, void *ctx);
+asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 
 #define AES_MIN_KEY_SIZE	16
 #define AES_MAX_KEY_SIZE	32
@@ -378,12 +378,12 @@ static void gen_tabs(void)
 	k[8*(i)+11] = ss[3];						\
 }
 
-static int
-aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
+static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+		       unsigned int key_len, u32 *flags)
 {
 	int i;
 	u32 ss[8];
-	struct aes_ctx *ctx = ctx_arg;
+	struct aes_ctx *ctx = crypto_tfm_ctx(tfm);
 	const __le32 *key = (const __le32 *)in_key;
 
 	/* encryption schedule */
@@ -464,16 +464,16 @@ aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
 	return 0;
 }
 
-static inline void aes_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	aes_enc_blk(src, dst, ctx);
+	aes_enc_blk(tfm, dst, src);
 }
-static inline void aes_decrypt(void *ctx, u8 *dst, const u8 *src)
+
+static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	aes_dec_blk(src, dst, ctx);
+	aes_dec_blk(tfm, dst, src);
 }
 
-
 static struct crypto_alg aes_alg = {
 	.cra_name		=	"aes",
 	.cra_driver_name	=	"aes-i586",
diff --git a/arch/i386/kernel/asm-offsets.c b/arch/i386/kernel/asm-offsets.c
index 36d66e2..1c3a809 100644
--- a/arch/i386/kernel/asm-offsets.c
+++ b/arch/i386/kernel/asm-offsets.c
@@ -4,6 +4,7 @@
  * to extract and format the required data.
  */
 
+#include <linux/crypto.h>
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <linux/personality.h>
@@ -69,4 +70,6 @@ void foo(void)
 
 	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
 	DEFINE(VSYSCALL_BASE, __fix_to_virt(FIX_VSYSCALL));
+
+	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
 }