Hi Rafael, FYI, the error/warning still remains. tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: 575024715a7d6dfa738e5db135e10928a32bbd54 commit: 8bfaf7ab474ef5a95f5bd6a8724c4a9f8d0b9611 [6697/15287] cpuidle: Drop disabled field from struct cpuidle_state config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel/linux-intel-lts/commit/8bfaf7ab474ef5a95f5bd6a87... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout 8bfaf7ab474ef5a95f5bd6a8724c4a9f8d0b9611 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arch/arm/mach-imx/cpuidle-imx6q.c: In function 'imx6q_cpuidle_fec_irqs_used': 65 | imx6q_cpuidle_driver.states[1].disabled = true; | ^ arch/arm/mach-imx/cpuidle-imx6q.c: In function 'imx6q_cpuidle_fec_irqs_unused': arch/arm/mach-imx/cpuidle-imx6q.c:71:32: error: 'struct cpuidle_state' has no member named 'disabled' 71 | imx6q_cpuidle_driver.states[1].disabled = false; | ^ vim +65 arch/arm/mach-imx/cpuidle-imx6q.c 12bb344074cfc5 Shawn Guo 2012-12-04 56 29380905565655 Lucas Stach 2016-06-03 57 /* 29380905565655 Lucas Stach 2016-06-03 58 * i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from waking the 29380905565655 Lucas Stach 2016-06-03 59 * CPUs when they are in wait(unclocked) state. As the hardware workaround isn't 29380905565655 Lucas Stach 2016-06-03 60 * applicable to all boards, disable the deeper idle state when the workaround 29380905565655 Lucas Stach 2016-06-03 61 * isn't present and the FEC is in use. 29380905565655 Lucas Stach 2016-06-03 62 */ 29380905565655 Lucas Stach 2016-06-03 63 void imx6q_cpuidle_fec_irqs_used(void) 29380905565655 Lucas Stach 2016-06-03 64 { 29380905565655 Lucas Stach 2016-06-03 @65 imx6q_cpuidle_driver.states[1].disabled = true; 29380905565655 Lucas Stach 2016-06-03 66 } 2cb9caa4397405 Shawn Guo 2016-06-21 67 EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_used); 29380905565655 Lucas Stach 2016-06-03 68 :::::: The code at line 65 was first introduced by commit :::::: 29380905565655bb797bf670a173bddb8e641da6 ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround :::::: TO: Lucas Stach <l.stach(a)pengutronix.de&gt; :::::: CC: Shawn Guo <shawnguo(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org