@@ -175,14 +175,13 @@ typedef struct { unsigned long pgprot; } pgprot_t;
#ifdef CONFIG_FLATMEM
-#define pfn_valid(pfn) \
-({ \
- unsigned long __pfn = (pfn); \
- /* avoid <linux/bootmem.h> include hell */ \
- extern unsigned long min_low_pfn; \
- \
- __pfn >= min_low_pfn && __pfn < max_mapnr; \
-})
+static inline int pfn_valid(unsigned long pfn)
+{
+ /* avoid <linux/mm.h> include hell */
+ extern unsigned long max_mapnr;
+
+ return pfn >= ARCH_PFN_OFFSET && pfn < max_mapnr;
+}
#elif defined(CONFIG_SPARSEMEM)