Index: linux-work/include/asm-generic/4level-fixup.h
===================================================================
--- linux-work.orig/include/asm-generic/4level-fixup.h 2005-01-24 17:09:49.000000000 +1100
+++ linux-work/include/asm-generic/4level-fixup.h 2005-02-17 18:10:38.000000000 +1100
@@ -24,7 +24,7 @@
#define pud_bad(pud) 0
#define pud_present(pud) 1
#define pud_ERROR(pud) do { } while (0)
-#define pud_clear(pud) do { } while (0)
+#define pud_clear(pud) pgd_clear((pgd_t *)(pud))
Just a small nit - no cast needed here.
Well, do you know ? pud is a pud_t* and the arch is free to implement
pgd_clear as an inline with strong typing no ?