[PATCH] mac80211: simplify buffers in aes_128_cmac_vector
From: Johannes Berg <johannes@sipsolutions.net>
Date: 2012-08-20 12:04:06
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Johannes Berg <redacted> 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 <redacted> --- net/mac80211/aes_cmac.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
index 8dfd70d..a04752e 100644
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c@@ -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;
--
1.7.10.4