netfilter: nft_set_hash: remove nft_hash_key()

	return ERR_PTR(-ENOENT);

}

/* nft_hash_select_ops() makes sure key size can be either 2 or 4 bytes . */

static inline u32 nft_hash_key(const u32 *key, u32 klen)

{

	if (klen == 4)

		return *key;

	return *(u16 *)key;

}

static bool nft_hash_lookup_fast(const struct net *net,

				 const struct nft_set *set,

				 const u32 *key, const struct nft_set_ext **ext)

	const struct nft_hash_elem *he;

	u32 hash, k1, k2;

	k1 = nft_hash_key(key, set->klen);

	k1 = *key;

	hash = jhash_1word(k1, priv->seed);

	hash = reciprocal_scale(hash, priv->buckets);

	hlist_for_each_entry_rcu(he, &priv->table[hash], node) {

		k2 = nft_hash_key(nft_set_ext_key(&he->ext)->data, set->klen);

		k2 = *(u32 *)nft_set_ext_key(&he->ext)->data;

		if (k1 == k2 &&

		    nft_set_elem_active(&he->ext, genmask)) {

			*ext = &he->ext;