[NETFILTER]: add some consts, remove some casts
Make a number of variables const and/or remove unneeded casts.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index e82339a..2de7ae0 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -235,12 +235,13 @@
#endif
static inline u_int32_t
-clusterip_hashfn(struct sk_buff *skb, struct clusterip_config *config)
+clusterip_hashfn(const struct sk_buff *skb,
+ const struct clusterip_config *config)
{
- struct iphdr *iph = ip_hdr(skb);
+ const struct iphdr *iph = ip_hdr(skb);
unsigned long hashval;
u_int16_t sport, dport;
- u_int16_t *ports;
+ const u_int16_t *ports;
switch (iph->protocol) {
case IPPROTO_TCP:
@@ -249,7 +250,7 @@
case IPPROTO_SCTP:
case IPPROTO_DCCP:
case IPPROTO_ICMP:
- ports = (void *)iph+iph->ihl*4;
+ ports = (const void *)iph+iph->ihl*4;
sport = ports[0];
dport = ports[1];
break;
@@ -289,7 +290,7 @@
}
static inline int
-clusterip_responsible(struct clusterip_config *config, u_int32_t hash)
+clusterip_responsible(const struct clusterip_config *config, u_int32_t hash)
{
return test_bit(hash - 1, &config->local_nodes);
}