-
-#elif defined(CONFIG_SPARSEMEM)
-
-/* pfn_valid is defined in linux/mmzone.h */
-
-#elif defined(CONFIG_NEED_MULTIPLE_NODES)
-
-#define pfn_valid(pfn) \
-({ \
- unsigned long __pfn = (pfn); \
- int __n = pfn_to_nid(__pfn); \
- ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \
- NODE_DATA(__n)->node_spanned_pages) \
- : 0); \
-})
-