/* We don't use supersection mappings for mmap() on /dev/mem, which means that we can't map the memory area above the 4G barrier into userspace.  */
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
/* We don't use supersection mappings for mmap() on /dev/mem, which means that we can't map the memory area above the 4G barrier into userspace.  */
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
{
	return !(pfn + (size >> PAGE_SHIFT) > 0x00100000);
}