#define __va(x) ((void *)((unsigned long)(x) + KERNELBASE))
-#ifdef CONFIG_DISCONTIGMEM
-#define page_to_pfn(page) discontigmem_page_to_pfn(page)
-#define pfn_to_page(pfn) discontigmem_pfn_to_page(pfn)
-#define pfn_valid(pfn) discontigmem_pfn_valid(pfn)
-#endif
#ifdef CONFIG_FLATMEM
#define pfn_to_page(pfn) (mem_map + (pfn))
#define page_to_pfn(page) ((unsigned long)((page) - mem_map))