ovs_key_ipv4
get_mask(a, struct ovs_key_ipv4 *));
const struct ovs_key_ipv4 *key,
const struct ovs_key_ipv4 *mask)
const struct ovs_key_ipv4 *ipv4_key;
struct ovs_key_ipv4 *ipv4_key;
const struct ovs_key_ipv4 *ipv4_key;
const struct ovs_key_ipv4 *mask = ipv4_key + 1;
[OVS_KEY_ATTR_IPV4] = { .len = sizeof(struct ovs_key_ipv4) },