Hi yankejian, [auto build test ERROR on pm/linux-next] [also build test ERROR on v4.4-rc3 next-20151202] url: https://github.com/0day-ci/linux/commits/yankejian/ACPI-Add-phylib-support-code-for-mdio/20151203-115039 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: i386-randconfig-s1-201548 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): >> make[3]: *** No rule to make target 'drivers/acpi/mcfg.o', needed by 'drivers/acpi/built-in.o'. make[3]: Target '__build' not remade because of errors. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation