Index: uspace/drv/nic/e1k/e1k.c
===================================================================
--- uspace/drv/nic/e1k/e1k.c	(revision 17651f8b055cf4bb7799acdcb2095f5d02ca11a1)
+++ uspace/drv/nic/e1k/e1k.c	(revision 9940ce0abda70ea8d091bd0be88bbccc2059eceb)
@@ -1237,10 +1237,9 @@
 /** Handle device interrupt
  *
- * @param iid   IPC call id
  * @param icall IPC call structure
  * @param dev   E1000 device
  *
  */
-static void e1000_interrupt_handler(ipc_callid_t iid, ipc_call_t *icall,
+static void e1000_interrupt_handler(ipc_call_t *icall,
     ddf_dev_t *dev)
 {
Index: uspace/drv/nic/ne2k/ne2k.c
===================================================================
--- uspace/drv/nic/ne2k/ne2k.c	(revision 17651f8b055cf4bb7799acdcb2095f5d02ca11a1)
+++ uspace/drv/nic/ne2k/ne2k.c	(revision 9940ce0abda70ea8d091bd0be88bbccc2059eceb)
@@ -122,5 +122,5 @@
 };
 
-static void ne2k_interrupt_handler(ipc_callid_t, ipc_call_t *, ddf_dev_t *);
+static void ne2k_interrupt_handler(ipc_call_t *, ddf_dev_t *);
 
 static int ne2k_register_interrupt(nic_t *nic_data)
@@ -239,10 +239,8 @@
 }
 
-void ne2k_interrupt_handler(ipc_callid_t iid, ipc_call_t *call, ddf_dev_t *dev)
+void ne2k_interrupt_handler(ipc_call_t *call, ddf_dev_t *dev)
 {
 	nic_t *nic_data = DRIVER_DATA(dev);
 	ne2k_interrupt(nic_data, IRQ_GET_ISR(*call), IRQ_GET_TSR(*call));
-	
-	async_answer_0(iid, EOK);
 }
 
Index: uspace/drv/nic/rtl8139/driver.c
===================================================================
--- uspace/drv/nic/rtl8139/driver.c	(revision 17651f8b055cf4bb7799acdcb2095f5d02ca11a1)
+++ uspace/drv/nic/rtl8139/driver.c	(revision 9940ce0abda70ea8d091bd0be88bbccc2059eceb)
@@ -816,11 +816,9 @@
 /** Handle device interrupt
  *
- * @param iid    The IPC call id
  * @param icall  The IPC call structure
  * @param dev    The rtl8139 device
  *
  */
-static void rtl8139_interrupt_handler(ipc_callid_t iid, ipc_call_t *icall,
-    ddf_dev_t *dev)
+static void rtl8139_interrupt_handler(ipc_call_t *icall, ddf_dev_t *dev)
 {
 	assert(dev);
Index: uspace/drv/nic/rtl8169/driver.c
===================================================================
--- uspace/drv/nic/rtl8169/driver.c	(revision 17651f8b055cf4bb7799acdcb2095f5d02ca11a1)
+++ uspace/drv/nic/rtl8169/driver.c	(revision 9940ce0abda70ea8d091bd0be88bbccc2059eceb)
@@ -72,6 +72,5 @@
 static int rtl8169_on_stopped(nic_t *nic_data);
 static void rtl8169_send_frame(nic_t *nic_data, void *data, size_t size);
-static void rtl8169_irq_handler(ipc_callid_t iid, ipc_call_t *icall,
-    ddf_dev_t *dev);
+static void rtl8169_irq_handler(ipc_call_t *icall, ddf_dev_t *dev);
 static inline int rtl8169_register_int_handler(nic_t *nic_data);
 static inline void rtl8169_get_hwaddr(rtl8169_t *rtl8169, nic_address_t *addr);
@@ -1032,6 +1031,5 @@
 }
 
-static void rtl8169_irq_handler(ipc_callid_t iid, ipc_call_t *icall,
-    ddf_dev_t *dev)
+static void rtl8169_irq_handler(ipc_call_t *icall, ddf_dev_t *dev)
 {
 	assert(dev);