netfilter: Add nf_hook_state initializer function.

This way we can consolidate where we setup new nf_hook_state objects,
to make sure the entire thing is initialized.

The only other place an nf_hook_object is instantiated is nf_queue,
wherein a structure copy is used.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index c480c43..b8c88f3 100644 (file)
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -54,6 +54,21 @@ struct nf_hook_state {
        int (*okfn)(struct sk_buff *);
 };
 
+static inline void nf_hook_state_init(struct nf_hook_state *p,
+                                     unsigned int hook,
+                                     int thresh, u_int8_t pf,
+                                     struct net_device *indev,
+                                     struct net_device *outdev,
+                                     int (*okfn)(struct sk_buff *))
+{
+       p->hook = hook;
+       p->thresh = thresh;
+       p->pf = pf;
+       p->in = indev;
+       p->out = outdev;
+       p->okfn = okfn;
+}
+
 typedef unsigned int nf_hookfn(const struct nf_hook_ops *ops,
                               struct sk_buff *skb,
                               const struct nf_hook_state *state);
@@ -142,15 +157,10 @@ static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
                                 int (*okfn)(struct sk_buff *), int thresh)
 {
        if (nf_hooks_active(pf, hook)) {
-               struct nf_hook_state state = {
-                       .hook = hook,
-                       .thresh = thresh,
-                       .pf = pf,
-                       .in = indev,
-                       .out = outdev,
-                       .okfn = okfn
-               };
+               struct nf_hook_state state;
 
+               nf_hook_state_init(&state, hook, thresh, pf,
+                                  indev, outdev, okfn);
                return nf_hook_slow(skb, &state);
        }
        return 1;