diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2005-10-30 21:25:15 +1100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-01-09 14:15:34 -0800 |
| commit | 06ace7a9bafeb9047352707eb79e8eaa0dfdf5f2 (patch) | |
| tree | fa22bbc2e8ea5bee00b6aec353783144b6f8735a /arch/x86_64 | |
| parent | 2df15fffc612b53b2c8e4ff3c981a82441bc00ae (diff) | |
[CRYPTO] Use standard byte order macros wherever possible
A lot of crypto code needs to read/write a 32-bit/64-bit words in a
specific gender. Many of them open code them by reading/writing one
byte at a time. This patch converts all the applicable usages over
to use the standard byte order macros.
This is based on a previous patch by Denis Vlasenko.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/crypto/aes.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/arch/x86_64/crypto/aes.c b/arch/x86_64/crypto/aes.c index acfdaa28791e..19996854b490 100644 --- a/arch/x86_64/crypto/aes.c +++ b/arch/x86_64/crypto/aes.c @@ -74,8 +74,6 @@ static inline u8 byte(const u32 x, const unsigned n) return x >> (n << 3); } -#define u32_in(x) le32_to_cpu(*(const __le32 *)(x)) - struct aes_ctx { u32 key_length; @@ -234,6 +232,7 @@ static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) { struct aes_ctx *ctx = ctx_arg; + const __le32 *key = (const __le32 *)in_key; u32 i, j, t, u, v, w; if (key_len != 16 && key_len != 24 && key_len != 32) { @@ -243,10 +242,10 @@ static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, ctx->key_length = key_len; - D_KEY[key_len + 24] = E_KEY[0] = u32_in(in_key); - D_KEY[key_len + 25] = E_KEY[1] = u32_in(in_key + 4); - D_KEY[key_len + 26] = E_KEY[2] = u32_in(in_key + 8); - D_KEY[key_len + 27] = E_KEY[3] = u32_in(in_key + 12); + D_KEY[key_len + 24] = E_KEY[0] = le32_to_cpu(key[0]); + D_KEY[key_len + 25] = E_KEY[1] = le32_to_cpu(key[1]); + D_KEY[key_len + 26] = E_KEY[2] = le32_to_cpu(key[2]); + D_KEY[key_len + 27] = E_KEY[3] = le32_to_cpu(key[3]); switch (key_len) { case 16: @@ -256,17 +255,17 @@ static int aes_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, break; case 24: - E_KEY[4] = u32_in(in_key + 16); - t = E_KEY[5] = u32_in(in_key + 20); + E_KEY[4] = le32_to_cpu(key[4]); + t = E_KEY[5] = le32_to_cpu(key[5]); for (i = 0; i < 8; ++i) loop6 (i); break; case 32: - E_KEY[4] = u32_in(in_key + 16); - E_KEY[5] = u32_in(in_key + 20); - E_KEY[6] = u32_in(in_key + 24); - t = E_KEY[7] = u32_in(in_key + 28); + E_KEY[4] = le32_to_cpu(key[4]); + E_KEY[5] = le32_to_cpu(key[5]); + E_KEY[6] = le32_to_cpu(key[6]); + t = E_KEY[7] = le32_to_cpu(key[7]); for (i = 0; i < 7; ++i) loop8(i); break; |