#ifdef CONFIG_PROC_KCORE
void __init kclist_add(struct kcore_list *, void *, size_t, int type);
+
+extern int __init register_mem_pfn_is_ram(int (*fn)(unsigned long pfn));
#else
static inline
void kclist_add(struct kcore_list *new, void *addr, size_t size, int type)