diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 68a99d2a5f335d..085a2dd312b47d 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -386,7 +386,6 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
 	desc->limit1 = (limit >> 16) & 0xf;
 }
 
-void update_intr_gate(unsigned int n, const void *addr);
 void alloc_intr_gate(unsigned int n, const void *addr);
 
 extern unsigned long system_vectors[];
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 36fef90a38e796..95609ee4c8b3e1 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -360,14 +360,6 @@ void idt_invalidate(void *addr)
 	load_idt(&idt);
 }
 
-/* This goes away once ASYNC_PF is sanitized */
-void __init update_intr_gate(unsigned int n, const void *addr)
-{
-	if (WARN_ON_ONCE(!test_bit(n, system_vectors)))
-		return;
-	set_intr_gate(n, addr);
-}
-
 void __init alloc_intr_gate(unsigned int n, const void *addr)
 {
 	if (WARN_ON(n < FIRST_SYSTEM_VECTOR))