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authorHerbert Xu <herbert@gondor.apana.org.au>2006-05-16 22:20:34 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-06-26 17:34:39 +1000
commit82062c72cd643c99a9e1c231270acbab986fd23f (patch)
tree42c1900095bfa27c2f2b5af7566adc9caf7402bf /drivers/crypto/padlock-aes.c
parent6c2bb98bc33ae33c7a33a133a4cd5a06395fece5 (diff)
downloadlinux-82062c72cd643c99a9e1c231270acbab986fd23f.tar.gz
[CRYPTO] padlock: Rearrange context structure to reduce code size
i386 assembly has more compact instructions for accessing 7-bit offsets. So by moving the large members to the end of the structure we can save quite a bit of code size. This patch shaves about 10% or 300 bytes off the padlock-aes file. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/padlock-aes.c')
-rw-r--r--drivers/crypto/padlock-aes.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index b98ad203d6cb..17ee684144f9 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -60,15 +60,14 @@
#define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t))
struct aes_ctx {
- uint32_t e_data[AES_EXTENDED_KEY_SIZE];
- uint32_t d_data[AES_EXTENDED_KEY_SIZE];
struct {
struct cword encrypt;
struct cword decrypt;
} cword;
- uint32_t *E;
- uint32_t *D;
+ u32 *D;
int key_length;
+ u32 E[AES_EXTENDED_KEY_SIZE];
+ u32 d_data[AES_EXTENDED_KEY_SIZE];
};
/* ====== Key management routines ====== */
@@ -313,8 +312,7 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
* itself we must supply the plain key for both encryption
* and decryption.
*/
- ctx->E = ctx->e_data;
- ctx->D = ctx->e_data;
+ ctx->D = ctx->E;
E_KEY[0] = le32_to_cpu(key[0]);
E_KEY[1] = le32_to_cpu(key[1]);