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netfilter: ipset: use swap macro instead of _manually_ swapping values

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Make use of the swap macro and remove unnecessary variables tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Gustavo A. R. Silva 2017-10-30 17:19:25 -05:00 committed by Pablo Neira Ayuso
parent a3c90f7a23
commit c045337751
3 changed files with 6 additions and 18 deletions
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8
net/netfilter/ipset/ip_set_bitmap_ip.c
View file

@ -263,12 +263,8 @@ bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &last_ip);
if (ret)
return ret;
if (first_ip > last_ip) {
u32 tmp = first_ip;
first_ip = last_ip;
last_ip = tmp;
}
if (first_ip > last_ip)
swap(first_ip, last_ip);
} else if (tb[IPSET_ATTR_CIDR]) {
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);

8
net/netfilter/ipset/ip_set_bitmap_ipmac.c
View file

@ -337,12 +337,8 @@ bitmap_ipmac_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &last_ip);
if (ret)
return ret;
if (first_ip > last_ip) {
u32 tmp = first_ip;
first_ip = last_ip;
last_ip = tmp;
}
if (first_ip > last_ip)
swap(first_ip, last_ip);
} else if (tb[IPSET_ATTR_CIDR]) {
u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);

8
net/netfilter/ipset/ip_set_bitmap_port.c
View file

@ -238,12 +238,8 @@ bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
first_port = ip_set_get_h16(tb[IPSET_ATTR_PORT]);
last_port = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
if (first_port > last_port) {
u16 tmp = first_port;
first_port = last_port;
last_port = tmp;
}
if (first_port > last_port)
swap(first_port, last_port);
elements = last_port - first_port + 1;
set->dsize = ip_set_elem_len(set, tb, 0, 0);