diff options
| author | Bhaktipriya Shridhar <bhaktipriya96@gmail.com> | 2016-03-08 23:29:37 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-11 22:09:09 -0800 |
| commit | fdd3836442c4be8f8dee42421b111ac1c13c170c (patch) | |
| tree | 339167b15f5f3ff1cdb27c8e76db81e13fe2d3a9 /drivers/staging/rtl8192e | |
| parent | 354605f4e6190ac2c80be5e1a1c7c80a2f7f30a1 (diff) | |
| download | linux-fdd3836442c4be8f8dee42421b111ac1c13c170c.tar.bz2 | |
staging: rtl8192e: Prefer using macro DIV_ROUND_UP
The macro DIV_ROUND_UP performs the computation
(((n) + (d) - 1) /(d)). It clarifies the divisor calculations.
This was done using the coccinelle script:
@@
expression e1;
expression e2;
@@
(
- ((e1) + e2 - 1) / (e2)
+ DIV_ROUND_UP(e1,e2)
|
- ((e1) + (e2 - 1)) / (e2)
+ DIV_ROUND_UP(e1,e2)
)
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8192e')
| -rw-r--r-- | drivers/staging/rtl8192e/rtllib_crypt_ccmp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c index 496de4f6a7bc..bc45cf098b04 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c @@ -233,7 +233,7 @@ static int rtllib_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); - blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); last = data_len % AES_BLOCK_LEN; for (i = 1; i <= blocks; i++) { @@ -319,7 +319,7 @@ static int rtllib_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); xor_block(mic, b, CCMP_MIC_LEN); - blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); last = data_len % AES_BLOCK_LEN; for (i = 1; i <= blocks; i++) { |