--- zzzz-none-000/linux-3.10.107/arch/sh/kernel/vsyscall/vsyscall.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/sh/kernel/vsyscall/vsyscall.c	2021-02-04 17:41:59.000000000 +0000
@@ -92,18 +92,3 @@
 
 	return NULL;
 }
-
-struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
-{
-	return NULL;
-}
-
-int in_gate_area(struct mm_struct *mm, unsigned long address)
-{
-	return 0;
-}
-
-int in_gate_area_no_mm(unsigned long address)
-{
-	return 0;
-}