summaryrefslogtreecommitdiffstats
path: root/net/mac80211/aes_ccm.c
diff options
context:
space:
mode:
authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2007-08-28 15:50:33 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:48:37 -0700
commit172589ccdde41b59861c92c4a971b95514ef24e3 (patch)
treeae775e6db4cb85aad1c74b6d93ba359f9dfe88ea /net/mac80211/aes_ccm.c
parentc45248c70125cc374fdf264659643276c72801bf (diff)
[NET]: DIV_ROUND_UP cleanup (part two)
Hopefully captured all single statement cases under net/. I'm not too sure if there is some policy about #includes that are "guaranteed" (ie., in the current tree) to be available through some other #included header, so I just added linux/kernel.h to each changed file that didn't #include it previously. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/aes_ccm.c')
-rw-r--r--net/mac80211/aes_ccm.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index e55569bee7d..bf7ba128b96 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -7,6 +7,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
@@ -63,7 +64,7 @@ void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
s_0 = scratch + AES_BLOCK_LEN;
e = scratch + 2 * AES_BLOCK_LEN;
- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
last_len = data_len % AES_BLOCK_LEN;
aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
@@ -102,7 +103,7 @@ int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
s_0 = scratch + AES_BLOCK_LEN;
a = scratch + 2 * AES_BLOCK_LEN;
- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
last_len = data_len % AES_BLOCK_LEN;
aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);