Revert "Update irqs on reset and device load"

This reverts commit 3dcd219f.

It is incorrect to call qemu_irq functions (or any other functions that
access other device state) during savevm/loadvm.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

hw/e1000.c

@@ -149,19 +149,13 @@ ioport_map(PCIDevice *pci_dev, int region_num, uint32_t addr,
     DBGOUT(IO, "e1000_ioport_map addr=0x%04x size=0x%08x\n", addr, size);
 }
 
-static void
-update_irqs(E1000State *s)
-{
-    qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);
-}
-
 static void
 set_interrupt_cause(E1000State *s, int index, uint32_t val)
 {
     if (val)
         val |= E1000_ICR_INT_ASSERTED;
     s->mac_reg[ICR] = val;
-    update_irqs(s);
+    qemu_set_irq(s->dev.irq[0], (s->mac_reg[IMS] & s->mac_reg[ICR]) != 0);
 }
 
 static void
@@ -978,7 +972,6 @@ nic_load(QEMUFile *f, void *opaque, int version_id)
         for (j = 0; j < mac_regarraystosave[i].size; j++)
             qemu_get_be32s(f,
                            s->mac_reg + mac_regarraystosave[i].array0 + j);
-    update_irqs(s);
     return 0;
 }
 
@@ -1077,7 +1070,6 @@ static void e1000_reset(void *opaque)
     memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
     d->rxbuf_min_shift = 1;
     memset(&d->tx, 0, sizeof d->tx);
-    update_irqs(d);
 }
 
 static void pci_e1000_init(PCIDevice *pci_dev)

hw/rtl8139.c

@@ -3317,8 +3317,6 @@ static int rtl8139_load(QEMUFile* f,void* opaque,int version_id)
         s->cplus_enabled = s->CpCmd != 0;
     }
 
-    rtl8139_update_irq(s);
-
     return 0;
 }