Hi Kuppuswamy, [auto build test ERROR on linus/master] [also build test ERROR on v4.11-rc3 next-20170310] [cannot apply to platform-drivers-x86/for-next tip/x86/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Kuppuswamy-Sathyanarayanan/platform-x86-intel_pmc_ipc-fix-gcr-offset/20170320-032638 config: x86_64-randconfig-h0-03200816 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/built-in.o: In function `iTCO_wdt_unset_NO_REBOOT_bit': >> iTCO_wdt.c:(.text+0x3b6f0f): undefined reference to `intel_pmc_gcr_read' >> iTCO_wdt.c:(.text+0x3b6f24): undefined reference to `intel_pmc_gcr_write' iTCO_wdt.c:(.text+0x3b6f2e): undefined reference to `intel_pmc_gcr_read' drivers/built-in.o: In function `iTCO_wdt_set_NO_REBOOT_bit': iTCO_wdt.c:(.text+0x3b729e): undefined reference to `intel_pmc_gcr_read' iTCO_wdt.c:(.text+0x3b72d1): undefined reference to `intel_pmc_gcr_write' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation