x86: put all kern_addr_valid() incarnations to pgtable.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 7 insertions, 1 deletions

diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index ed3e70d8d04b..a8be1ee15a99 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -497,9 +497,15 @@ static inline void paravirt_pagetable_setup_done(pgd_t *base)
 
 #endif /* !__ASSEMBLY__ */
 
+/*
+ * kern_addr_valid() is (1) for FLATMEM and (0) for
+ * SPARSEMEM and DISCONTIGMEM
+ */
 #ifdef CONFIG_FLATMEM
 #define kern_addr_valid(addr)   (1)
-#endif /* CONFIG_FLATMEM */
+#else
+#define kern_addr_valid(kaddr)  (0)
+#endif
 
 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot)         \
                 remap_pfn_range(vma, vaddr, pfn, size, prot)