Several places use (x + 7) / 8 to convert from a number of bits to a number
of bytes. Replace those with DIV_ROUND_UP(x, 8) instead, for consistency
with other parts of the same file.
Signed-off-by: Kevin Easton
---
net/key/af_key.c | 13 +++--
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/net/key/af_key.c b/net/key/af_key.c
index e62e52e..f3ebb84 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -822,12 +822,12 @@ static struct sk_buff *__pfkey_xfrm_state2msg(const
struct xfrm_state *x,
if (add_keys) {
if (x->aalg && x->aalg->alg_key_len) {
auth_key_size =
- PFKEY_ALIGN8((x->aalg->alg_key_len + 7) / 8);
+ PFKEY_ALIGN8(DIV_ROUND_UP(x->aalg->alg_key_len,
8));
size += sizeof(struct sadb_key) + auth_key_size;
}
if (x->ealg && x->ealg->alg_key_len) {
encrypt_key_size =
- PFKEY_ALIGN8((x->ealg->alg_key_len+7) / 8);
+ PFKEY_ALIGN8(DIV_ROUND_UP(x->ealg->alg_key_len,
8));
size += sizeof(struct sadb_key) + encrypt_key_size;
}
}
@@ -987,7 +987,8 @@ static struct sk_buff *__pfkey_xfrm_state2msg(const struct
xfrm_state *x,
key->sadb_key_exttype = SADB_EXT_KEY_AUTH;
key->sadb_key_bits = x->aalg->alg_key_len;
key->sadb_key_reserved = 0;
- memcpy(key + 1, x->aalg->alg_key, (x->aalg->alg_key_len+7)/8);
+ memcpy(key + 1, x->aalg->alg_key,
+ DIV_ROUND_UP(x->aalg->alg_key_len, 8));
}
/* encrypt key */
if (add_keys && encrypt_key_size) {
@@ -998,7 +999,7 @@ static struct sk_buff *__pfkey_xfrm_state2msg(const struct
xfrm_state *x,
key->sadb_key_bits = x->ealg->alg_key_len;
key->sadb_key_reserved = 0;
memcpy(key + 1, x->ealg->alg_key,
- (x->ealg->alg_key_len+7)/8);
+ DIV_ROUND_UP(x->ealg->alg_key_len, 8));
}
/* sa */
@@ -1193,7 +1194,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct
net *net,
goto out;
}
if (key)
- keysize = (key->sadb_key_bits + 7) / 8;
+ keysize = DIV_ROUND_UP(key->sadb_key_bits, 8);
x->aalg = kmalloc(sizeof(*x->aalg) + keysize, GFP_KERNEL);
if (!x->aalg) {
err = -ENOMEM;
@@ -1232,7 +1233,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct
net *net,
}
key = (struct sadb_key*)
ext_hdrs[SADB_EXT_KEY_ENCRYPT-1];
if (key)
- keysize = (key->sadb_key_bits + 7) / 8;
+ keysize = DIV_ROUND_UP(key->sadb_key_bits, 8);
x->ealg = kmalloc(sizeof(*x->ealg) + keysize,
GFP_KERNEL);
if (!x->ealg) {
err = -ENOMEM;
--
2.8.1
