}
 }
 
-static bool tx_policy_is_equal(const struct tx_policy *a,
-                              const struct tx_policy *b)
+static bool wfx_tx_policy_is_equal(const struct tx_policy *a,
+                                  const struct tx_policy *b)
 {
        return !memcmp(a->rates, b->rates, sizeof(a->rates));
 }
        struct tx_policy *it;
 
        list_for_each_entry(it, &cache->used, link)
-               if (tx_policy_is_equal(wanted, it))
+               if (wfx_tx_policy_is_equal(wanted, it))
                        return it - cache->cache;
        list_for_each_entry(it, &cache->free, link)
-               if (tx_policy_is_equal(wanted, it))
+               if (wfx_tx_policy_is_equal(wanted, it))
                        return it - cache->cache;
        return -1;
 }