__ETHTOOL_DECLARE_LINK_MODE_MASK(all_s) = { 0, };
        __ETHTOOL_DECLARE_LINK_MODE_MASK(s);
        struct phylink_link_state t;
-       int intf;
+       int interface;
 
-       for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) {
-               if (test_bit(intf, interfaces)) {
-                       linkmode_copy(s, supported);
+       for_each_set_bit(interface, interfaces, PHY_INTERFACE_MODE_MAX) {
+               linkmode_copy(s, supported);
 
-                       t = *state;
-                       t.interface = intf;
-                       if (!phylink_validate_mac_and_pcs(pl, s, &t)) {
-                               linkmode_or(all_s, all_s, s);
-                               linkmode_or(all_adv, all_adv, t.advertising);
-                       }
+               t = *state;
+               t.interface = interface;
+               if (!phylink_validate_mac_and_pcs(pl, s, &t)) {
+                       linkmode_or(all_s, all_s, s);
+                       linkmode_or(all_adv, all_adv, t.advertising);
                }
        }