--- zzzz-none-000/linux-4.9.276/arch/mips/include/asm/pgtable-32.h	2021-07-20 14:21:16.000000000 +0000
+++ falcon-5530-750/linux-4.9.276/arch/mips/include/asm/pgtable-32.h	2023-04-05 08:19:00.000000000 +0000
@@ -68,11 +68,13 @@
 #define PKMAP_END	((FIXADDR_START) & ~((LAST_PKMAP << PAGE_SHIFT)-1))
 #define PKMAP_BASE	(PKMAP_END - PAGE_SIZE * LAST_PKMAP)
 
+#ifndef VMALLOC_END
 #ifdef CONFIG_HIGHMEM
 # define VMALLOC_END	(PKMAP_BASE-2*PAGE_SIZE)
 #else
 # define VMALLOC_END	(FIXADDR_START-2*PAGE_SIZE)
 #endif
+#endif
 
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 #define pte_ERROR(e) \