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

10 files changed, 110 insertions, 91 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);
 }
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index c5ca2dc..5713c7e 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -37,10 +37,10 @@ struct s390_aes_ctx {
 	int key_len;
 };
 
-static int aes_set_key(void *ctx, 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)
 {
-	struct s390_aes_ctx *sctx = ctx;
+	struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	switch (key_len) {
 	case 16:
@@ -70,9 +70,9 @@ fail:
 	return -EINVAL;
 }
 
-static void aes_encrypt(void *ctx, u8 *out, const u8 *in)
+static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-	const struct s390_aes_ctx *sctx = ctx;
+	const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	switch (sctx->key_len) {
 	case 16:
@@ -90,9 +90,9 @@ static void aes_encrypt(void *ctx, u8 *out, const u8 *in)
 	}
 }
 
-static void aes_decrypt(void *ctx, u8 *out, const u8 *in)
+static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-	const struct s390_aes_ctx *sctx = ctx;
+	const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	switch (sctx->key_len) {
 	case 16:
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index e3c37aa..b3f7496 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -44,10 +44,10 @@ struct crypt_s390_des3_192_ctx {
 	u8 key[DES3_192_KEY_SIZE];
 };
 
-static int des_setkey(void *ctx, const u8 *key, unsigned int keylen,
-		      u32 *flags)
+static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
+		      unsigned int keylen, u32 *flags)
 {
-	struct crypt_s390_des_ctx *dctx = ctx;
+	struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
 	int ret;
 
 	/* test if key is valid (not a weak key) */
@@ -57,16 +57,16 @@ static int des_setkey(void *ctx, const u8 *key, unsigned int keylen,
 	return ret;
 }
 
-static void des_encrypt(void *ctx, u8 *out, const u8 *in)
+static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-	struct crypt_s390_des_ctx *dctx = ctx;
+	struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
 }
 
-static void des_decrypt(void *ctx, u8 *out, const u8 *in)
+static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-	struct crypt_s390_des_ctx *dctx = ctx;
+	struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
 }
@@ -166,11 +166,11 @@ static struct crypto_alg des_alg = {
  *   Implementers MUST reject keys that exhibit this property.
  *
  */
-static int des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen,
-			   u32 *flags)
+static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key,
+			   unsigned int keylen, u32 *flags)
 {
 	int i, ret;
-	struct crypt_s390_des3_128_ctx *dctx = ctx;
+	struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
 	const u8* temp_key = key;
 
 	if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
@@ -186,17 +186,17 @@ static int des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen,
 	return 0;
 }
 
-static void des3_128_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	struct crypt_s390_des3_128_ctx *dctx = ctx;
+	struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
 		      DES3_128_BLOCK_SIZE);
 }
 
-static void des3_128_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	struct crypt_s390_des3_128_ctx *dctx = ctx;
+	struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
 		      DES3_128_BLOCK_SIZE);
@@ -302,11 +302,11 @@ static struct crypto_alg des3_128_alg = {
  *   property.
  *
  */
-static int des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen,
-			   u32 *flags)
+static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
+			   unsigned int keylen, u32 *flags)
 {
 	int i, ret;
-	struct crypt_s390_des3_192_ctx *dctx = ctx;
+	struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
 	const u8* temp_key = key;
 
 	if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
@@ -325,17 +325,17 @@ static int des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen,
 	return 0;
 }
 
-static void des3_192_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	struct crypt_s390_des3_192_ctx *dctx = ctx;
+	struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
 		      DES3_192_BLOCK_SIZE);
 }
 
-static void des3_192_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-	struct crypt_s390_des3_192_ctx *dctx = ctx;
+	struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
 
 	crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
 		      DES3_192_BLOCK_SIZE);
diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c
index 98c896b..9d34a35 100644
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -40,28 +40,29 @@ struct crypt_s390_sha1_ctx {
 	u8 buffer[2 * SHA1_BLOCK_SIZE];
 };
 
-static void
-sha1_init(void *ctx)
+static void sha1_init(struct crypto_tfm *tfm)
 {
-	static const struct crypt_s390_sha1_ctx initstate = {
-		.state = {
-			0x67452301,
-			0xEFCDAB89,
-			0x98BADCFE,
-			0x10325476,
-			0xC3D2E1F0
-		},
+	struct crypt_s390_sha1_ctx *ctx = crypto_tfm_ctx(tfm);
+	static const u32 initstate[5] = {
+		0x67452301,
+		0xEFCDAB89,
+		0x98BADCFE,
+		0x10325476,
+		0xC3D2E1F0
 	};
-	memcpy(ctx, &initstate, sizeof(initstate));
+
+	ctx->count = 0;
+	memcpy(ctx->state, &initstate, sizeof(initstate));
+	ctx->buf_len = 0;
 }
 
-static void
-sha1_update(void *ctx, const u8 *data, unsigned int len)
+static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
+			unsigned int len)
 {
 	struct crypt_s390_sha1_ctx *sctx;
 	long imd_len;
 
-	sctx = ctx;
+	sctx = crypto_tfm_ctx(tfm);
 	sctx->count += len * 8; //message bit length
 
 	//anything in buffer yet? -> must be completed
@@ -110,10 +111,9 @@ pad_message(struct crypt_s390_sha1_ctx* sctx)
 }
 
 /* Add padding and return the message digest. */
-static void
-sha1_final(void* ctx, u8 *out)
+static void sha1_final(struct crypto_tfm *tfm, u8 *out)
 {
-	struct crypt_s390_sha1_ctx *sctx = ctx;
+	struct crypt_s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	//must perform manual padding
 	pad_message(sctx);
diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c
index 1ec5e92..f573df3 100644
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -31,9 +31,9 @@ struct s390_sha256_ctx {
 	u8 buf[2 * SHA256_BLOCK_SIZE];
 };
 
-static void sha256_init(void *ctx)
+static void sha256_init(struct crypto_tfm *tfm)
 {
-	struct s390_sha256_ctx *sctx = ctx;
+	struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	sctx->state[0] = 0x6a09e667;
 	sctx->state[1] = 0xbb67ae85;
@@ -44,12 +44,12 @@ static void sha256_init(void *ctx)
 	sctx->state[6] = 0x1f83d9ab;
 	sctx->state[7] = 0x5be0cd19;
 	sctx->count = 0;
-	memset(sctx->buf, 0, sizeof(sctx->buf));
 }
 
-static void sha256_update(void *ctx, const u8 *data, unsigned int len)
+static void sha256_update(struct crypto_tfm *tfm, const u8 *data,
+			  unsigned int len)
 {
-	struct s390_sha256_ctx *sctx = ctx;
+	struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
 	unsigned int index;
 	int ret;
 
@@ -108,9 +108,9 @@ static void pad_message(struct s390_sha256_ctx* sctx)
 }
 
 /* Add padding and return the message digest */
-static void sha256_final(void* ctx, u8 *out)
+static void sha256_final(struct crypto_tfm *tfm, u8 *out)
 {
-	struct s390_sha256_ctx *sctx = ctx;
+	struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	/* must perform manual padding */
 	pad_message(sctx);
diff --git a/arch/x86_64/crypto/aes-x86_64-asm.S b/arch/x86_64/crypto/aes-x86_64-asm.S
index 483cbb2..26b40de 100644
--- a/arch/x86_64/crypto/aes-x86_64-asm.S
+++ b/arch/x86_64/crypto/aes-x86_64-asm.S
@@ -15,6 +15,10 @@
 
 .text
 
+#include <asm/asm-offsets.h>
+
+#define BASE crypto_tfm_ctx_offset
+
 #define R1	%rax
 #define R1E	%eax
 #define R1X	%ax
@@ -46,19 +50,19 @@
 #define R10	%r10
 #define R11	%r11
 
-#define prologue(FUNC,BASE,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
+#define prologue(FUNC,KEY,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
 	.global	FUNC;			\
 	.type	FUNC,@function;		\
 	.align	8;			\
 FUNC:	movq	r1,r2;			\
 	movq	r3,r4;			\
-	leaq	BASE+52(r8),r9;		\
+	leaq	BASE+KEY+52(r8),r9;	\
 	movq	r10,r11;		\
 	movl	(r7),r5 ## E;		\
 	movl	4(r7),r1 ## E;		\
 	movl	8(r7),r6 ## E;		\
 	movl	12(r7),r7 ## E;		\
-	movl	(r8),r10 ## E;		\
+	movl	BASE(r8),r10 ## E;	\
 	xorl	-48(r9),r5 ## E;	\
 	xorl	-44(r9),r1 ## E;	\
 	xorl	-40(r9),r6 ## E;	\
@@ -128,8 +132,8 @@ FUNC:	movq	r1,r2;			\
 	movl	r3 ## E,r1 ## E;	\
 	movl	r4 ## E,r2 ## E;
 
-#define entry(FUNC,BASE,B128,B192) \
-	prologue(FUNC,BASE,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
+#define entry(FUNC,KEY,B128,B192) \
+	prologue(FUNC,KEY,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
 
 #define return epilogue(R8,R2,R9,R7,R5,R6,R3,R4,R11)
 
@@ -147,9 +151,9 @@ FUNC:	movq	r1,r2;			\
 #define decrypt_final(TAB,OFFSET) \
 	round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4)
 
-/* void aes_encrypt(void *ctx, u8 *out, const u8 *in) */
+/* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */
 
-	entry(aes_encrypt,0,enc128,enc192)
+	entry(aes_enc_blk,0,enc128,enc192)
 	encrypt_round(aes_ft_tab,-96)
 	encrypt_round(aes_ft_tab,-80)
 enc192:	encrypt_round(aes_ft_tab,-64)
@@ -166,9 +170,9 @@ enc128:	encrypt_round(aes_ft_tab,-32)
 	encrypt_final(aes_fl_tab,112)
 	return
 
-/* void aes_decrypt(void *ctx, u8 *out, const u8 *in) */
+/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */
 
-	entry(aes_decrypt,240,dec128,dec192)
+	entry(aes_dec_blk,240,dec128,dec192)
 	decrypt_round(aes_it_tab,-96)
 	decrypt_round(aes_it_tab,-80)
 dec192:	decrypt_round(aes_it_tab,-64)
diff --git a/arch/x86_64/crypto/aes.c b/arch/x86_64/crypto/aes.c
index 6f77e770..68866fa 100644
--- a/arch/x86_64/crypto/aes.c
+++ b/arch/x86_64/crypto/aes.c
@@ -227,10 +227,10 @@ static void __init gen_tabs(void)
 	t ^= E_KEY[8 * i + 7]; E_KEY[8 * i + 15] = t;	\
 }
 
-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)
 {
-	struct aes_ctx *ctx = ctx_arg;
+	struct aes_ctx *ctx = crypto_tfm_ctx(tfm);
 	const __le32 *key = (const __le32 *)in_key;
 	u32 i, j, t, u, v, w;
 
@@ -283,8 +283,18 @@ static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len,
 	return 0;
 }
 
-extern void aes_encrypt(void *ctx_arg, u8 *out, const u8 *in);
-extern void aes_decrypt(void *ctx_arg, u8 *out, const u8 *in);
+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);
+
+static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	aes_enc_blk(tfm, dst, src);
+}
+
+static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+	aes_dec_blk(tfm, dst, src);
+}
 
 static struct crypto_alg aes_alg = {
 	.cra_name		=	"aes",
diff --git a/arch/x86_64/kernel/asm-offsets.c b/arch/x86_64/kernel/asm-offsets.c
index 38834bb..96687e2b 100644
--- a/arch/x86_64/kernel/asm-offsets.c
+++ b/arch/x86_64/kernel/asm-offsets.c
@@ -4,6 +4,7 @@
  * and format the required data.
  */
 
+#include <linux/crypto.h>
 #include <linux/sched.h> 
 #include <linux/stddef.h>
 #include <linux/errno.h> 
@@ -68,5 +69,7 @@ int main(void)
 	DEFINE(pbe_next, offsetof(struct pbe, next));
 	BLANK();
 	DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
+	BLANK();
+	DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
 	return 0;
 }