list_for_each_entry (m, &sc->mappings, node) {
if (m->ip_addr == iph->saddr){
- if (memcmp(m->hw_addr, eh->h_source, ETH_ALEN)) {
- memcpy(m->hw_addr, eh->h_source, ETH_ALEN);
- }
+ memcpy(m->hw_addr, eh->h_source, ETH_ALEN);
m->used = jiffies;
goto done;
}