diff mbox

mac80211: simplify buffers in aes_128_cmac_vector

Message ID 1345464241-16608-1-git-send-email-johannes@sipsolutions.net (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Johannes Berg Aug. 20, 2012, 12:04 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

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>
---
 net/mac80211/aes_cmac.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
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Patch

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;