--- a/arch/x86/mm/ioremap.c 2017-08-06 11:10:56.224088715 -0700 +++ b/arch/x86/mm/ioremap.c 2017-08-06 11:16:09.797088715 -0700 @@ -115,8 +115,9 @@ last_pfn = last_addr >> PAGE_SHIFT; if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL, __ioremap_check_ram) == 1) { - WARN_ONCE(1, "ioremap on RAM at 0x%llx - 0x%llx\n", - phys_addr, last_addr); + WARN_ONCE(1, "ioremap on RAM at 0x%lx - 0x%lx\n", + (unsigned long int)phys_addr, + (unsigned long int)last_addr); return NULL; }