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netfilter: nf_tables: kill nft_data_cmp()

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Only needlessly complicates things due to requiring specific argument
types. Use memcmp directly.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Patrick McHardy 2015-04-11 02:27:34 +01:00 committed by Pablo Neira Ayuso
parent fad136ea0d
commit e562d860d7
4 changed files with 7 additions and 15 deletions
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7
include/net/netfilter/nf_tables.h
View File

@ -69,13 +69,6 @@ struct nft_regs {
};
};
static inline int nft_data_cmp(const struct nft_data *d1,
const struct nft_data *d2,
unsigned int len)
{
return memcmp(d1->data, d2->data, len);
}
static inline void nft_data_copy(struct nft_data *dst,
const struct nft_data *src)
{

2
net/netfilter/nft_cmp.c
View File

@ -31,7 +31,7 @@ static void nft_cmp_eval(const struct nft_expr *expr,
const struct nft_cmp_expr *priv = nft_expr_priv(expr);
int d;
d = nft_data_cmp(&regs->data[priv->sreg], &priv->data, priv->len);
d = memcmp(&regs->data[priv->sreg], &priv->data, priv->len);
switch (priv->op) {
case NFT_CMP_EQ:
if (d != 0)

2
net/netfilter/nft_hash.c
View File

@ -62,7 +62,7 @@ static inline int nft_hash_cmp(struct rhashtable_compare_arg *arg,
const struct nft_hash_cmp_arg *x = arg->key;
const struct nft_hash_elem *he = ptr;
if (nft_data_cmp(nft_set_ext_key(&he->ext), x->key, x->set->klen))
if (memcmp(nft_set_ext_key(&he->ext), x->key, x->set->klen))
return 1;
if (nft_set_elem_expired(&he->ext))
return 1;

11
net/netfilter/nft_rbtree.c
View File

@ -45,7 +45,7 @@ static bool nft_rbtree_lookup(const struct nft_set *set,
while (parent != NULL) {
rbe = rb_entry(parent, struct nft_rbtree_elem, node);
d = nft_data_cmp(nft_set_ext_key(&rbe->ext), key, set->klen);
d = memcmp(nft_set_ext_key(&rbe->ext), key, set->klen);
if (d < 0) {
parent = parent->rb_left;
interval = rbe;
@ -91,9 +91,9 @@ static int __nft_rbtree_insert(const struct nft_set *set,
while (*p != NULL) {
parent = *p;
rbe = rb_entry(parent, struct nft_rbtree_elem, node);
d = nft_data_cmp(nft_set_ext_key(&rbe->ext),
nft_set_ext_key(&new->ext),
set->klen);
d = memcmp(nft_set_ext_key(&rbe->ext),
nft_set_ext_key(&new->ext),
set->klen);
if (d < 0)
p = &parent->rb_left;
else if (d > 0)
@ -153,8 +153,7 @@ static void *nft_rbtree_deactivate(const struct nft_set *set,
while (parent != NULL) {
rbe = rb_entry(parent, struct nft_rbtree_elem, node);
d = nft_data_cmp(nft_set_ext_key(&rbe->ext), &elem->key,
set->klen);
d = memcmp(nft_set_ext_key(&rbe->ext), &elem->key, set->klen);
if (d < 0)
parent = parent->rb_left;
else if (d > 0)