#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
-#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+static inline unsigned long virt_to_pfn(const void *kaddr)
+{
+ return __pa(kaddr) >> PAGE_SHIFT;
+}
+
+static inline void * pfn_to_virt(unsigned long pfn)
+{
+ return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
+}
#define virt_to_page(addr) \
(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))