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mac80211: simplify buffers in aes_128_cmac_vector

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There's no need to use a single scratch buffer and
calculate offsets into it, just use two separate
buffers for the separate variables.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-08-19 14:51:44 +02:00
parent 8b3d1cc213
commit d348f69f59
1 changed files with 1 additions and 5 deletions
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6
net/mac80211/aes_cmac.c
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@ -38,14 +38,10 @@ static void gf_mulx(u8 *pad)
static void aes_128_cmac_vector(struct crypto_cipher *tfm, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac)
{
u8 scratch[2 * AES_BLOCK_SIZE];
u8 *cbc, *pad;
u8 cbc[AES_BLOCK_SIZE], pad[AES_BLOCK_SIZE];
const u8 *pos, *end;
size_t i, e, left, total_len;
cbc = scratch;
pad = scratch + AES_BLOCK_SIZE;
memset(cbc, 0, AES_BLOCK_SIZE);
total_len = 0;