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staging: rtl8192e: Prefer using macro DIV_ROUND_UP

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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>
This commit is contained in:
Bhaktipriya Shridhar 2016-03-08 23:29:37 +05:30 committed by Greg Kroah-Hartman
parent 354605f4e6
commit fdd3836442
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
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@ -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++) {