if (num_InterruptThrottleRate > bd) {
                        adapter->itr = InterruptThrottleRate[bd];
-                       switch (adapter->itr) {
-                       case 0:
-                               e_info("%s turned off\n", opt.name);
-                               break;
-                       case 1:
-                               e_info("%s set to dynamic mode\n", opt.name);
-                               adapter->itr_setting = adapter->itr;
-                               adapter->itr = 20000;
-                               break;
-                       case 3:
-                               e_info("%s set to dynamic conservative mode\n",
-                                       opt.name);
-                               adapter->itr_setting = adapter->itr;
-                               adapter->itr = 20000;
-                               break;
-                       case 4:
-                               e_info("%s set to simplified (2000-8000 ints) mode\n",
-                                      opt.name);
-                               adapter->itr_setting = 4;
-                               break;
-                       default:
-                               /*
-                                * Save the setting, because the dynamic bits
-                                * change itr.
-                                */
-                               if (e1000_validate_option(&adapter->itr, &opt,
-                                                         adapter) &&
-                                   (adapter->itr == 3)) {
-                                       /*
-                                        * In case of invalid user value,
-                                        * default to conservative mode.
-                                        */
-                                       adapter->itr_setting = adapter->itr;
-                                       adapter->itr = 20000;
-                               } else {
-                                       /*
-                                        * Clear the lower two bits because
-                                        * they are used as control.
-                                        */
-                                       adapter->itr_setting =
-                                               adapter->itr & ~3;
-                               }
-                               break;
-                       }
+
+                       /*
+                        * Make sure a message is printed for non-special
+                        * values. And in case of an invalid option, display
+                        * warning, use default and go through itr/itr_setting
+                        * adjustment logic below
+                        */
+                       if ((adapter->itr > 4) &&
+                           e1000_validate_option(&adapter->itr, &opt, adapter))
+                               adapter->itr = opt.def;
                } else {
                        /*
                         * If no option specified, use default value and go
                         * Make sure a message is printed for non-special
                         * default values
                         */
-                       if (adapter->itr > 40)
+                       if (adapter->itr > 4)
                                e_info("%s set to default %d\n", opt.name,
                                       adapter->itr);
                }