diff --git a/reactos/hal/halx86/generic/irq.S b/reactos/hal/halx86/generic/irq.S
index f1ba0fc2502..57447520568 100644
--- a/reactos/hal/halx86/generic/irq.S
+++ b/reactos/hal/halx86/generic/irq.S
@@ -220,13 +220,11 @@ _HalDisableSystemInterrupt@8:
     ret 8
 .endfunc
 
-#if 0
 .globl _HalEnableSystemInterrupt@12
 .func HalEnableSystemInterrupt@12
 _HalEnableSystemInterrupt@12:
 
     /* Get the vector and validate it */
-    jmp $
     movzx ecx, byte ptr [esp+4]
     sub ecx, PRIMARY_VECTOR_BASE
     jb Invalid
@@ -290,7 +288,6 @@ Invalid:
     xor eax, eax
     ret 12
 .endfunc
-#endif
 
 .globl _HalBeginSystemInterrupt@12
 .func HalBeginSystemInterrupt@12
diff --git a/reactos/hal/halx86/generic/irql.c b/reactos/hal/halx86/generic/irql.c
index 746c5e08f9d..27b59c9dba4 100644
--- a/reactos/hal/halx86/generic/irql.c
+++ b/reactos/hal/halx86/generic/irql.c
@@ -167,30 +167,4 @@ VOID STDCALL HalEndSystemInterrupt (KIRQL Irql, ULONG Unknown2)
   HalpEndSystemInterrupt(Irql);
 }
 
-BOOLEAN
-STDCALL
-HalEnableSystemInterrupt(
-  ULONG Vector,
-  KIRQL Irql,
-  KINTERRUPT_MODE InterruptMode)
-{
-  ULONG irq;
-  ULONG Mask;
-
-  if (Vector < IRQ_BASE || Vector >= IRQ_BASE + NR_IRQS)
-    return FALSE;
-
-  irq = Vector - IRQ_BASE;
-  KeGetPcr()->IDR &= ~(1 << irq);
-
-  Mask = KeGetPcr()->IDR | KiI8259MaskTable[KeGetPcr()->Irql];
-  WRITE_PORT_UCHAR((PUCHAR)0x21,  (UCHAR)Mask);
-  Mask >>= 8;
-  WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
-
-  return TRUE;
-}
-
-
-
 /* EOF */