diff --git a/reactos/hal/halx86/generic/irq.S b/reactos/hal/halx86/generic/irq.S
index d5a439090b6..a36010692e7 100644
--- a/reactos/hal/halx86/generic/irq.S
+++ b/reactos/hal/halx86/generic/irq.S
@@ -404,7 +404,6 @@ DoCall:
 .endfunc
 #endif
 
-#if 0
 .globl @KfLowerIrql@4
 .func @KfLowerIrql@4
 _@KfLowerIrql@4:
@@ -444,7 +443,6 @@ DoCall3:
     popf
     ret
 .endfunc
-#endif
 
 .globl @KfRaiseIrql@4
 .func @KfRaiseIrql@4
diff --git a/reactos/hal/halx86/generic/irql.c b/reactos/hal/halx86/generic/irql.c
index 6c8c90fca5e..710e304a5b6 100644
--- a/reactos/hal/halx86/generic/irql.c
+++ b/reactos/hal/halx86/generic/irql.c
@@ -22,33 +22,6 @@ extern UCHAR SoftIntByteTable[];
 
 /* FUNCTIONS ****************************************************************/
 
-VOID FASTCALL
-KfLowerIrql (KIRQL	NewIrql)
-{
-    ULONG Mask;
-    ULONG Flags;
-    UCHAR Pending;
-
-    Ki386SaveFlags(Flags);
-    Ki386DisableInterrupts();
-
-    if (KeGetPcr()->Irql > DISPATCH_LEVEL)
-    {
-        Mask = KeGetPcr()->IDR | KiI8259MaskTable[NewIrql];
-        WRITE_PORT_UCHAR((PUCHAR)0x21,  (UCHAR)Mask);
-        Mask >>= 8;
-        WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
-    }
-
-
-  KeGetPcr()->Irql = NewIrql;
-  Pending = SoftIntByteTable[KeGetPcr()->IRR];
-  if (Pending > NewIrql)
-    {
-              SoftIntHandlerTable[Pending]();
-    }
-  Ki386RestoreFlags(Flags);
-}
 
 VOID STDCALL HalEndSystemInterrupt (KIRQL Irql, ULONG Unknown2)
 {