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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-05-16 22:20:34 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2006-06-26 17:34:39 +1000 |
| commit | 82062c72cd643c99a9e1c231270acbab986fd23f (patch) | |
| tree | 42c1900095bfa27c2f2b5af7566adc9caf7402bf | |
| parent | 6c2bb98bc33ae33c7a33a133a4cd5a06395fece5 (diff) | |
| download | linux-rt-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>
| -rw-r--r-- | drivers/crypto/padlock-aes.c | 10 |
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]); |