Hi Rafael, FYI, the error/warning still remains. tree: https://github.com/intel/linux-intel-lts.git 5.4/preempt-rt head: e4bef0158828ec542f26811e8a1fb27b882166be commit: 8bfaf7ab474ef5a95f5bd6a8724c4a9f8d0b9611 [7040/16189] cpuidle: Drop disabled field from struct cpuidle_state config: arm-allmodconfig (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/preempt-rt git checkout 8bfaf7ab474ef5a95f5bd6a8724c4a9f8d0b9611 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 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-tegra/cpuidle-tegra20.c: In function 'tegra20_cpuidle_pcie_irqs_in_use': 206 | tegra_idle_driver.states[1].disabled = true; | ^ vim +206 arch/arm/mach-tegra/cpuidle-tegra20.c 5c1350bdfcebf4 Joseph Lo 2013-01-15 196 b4f173752a5618 Stephen Warren 2013-05-06 197 /* b4f173752a5618 Stephen Warren 2013-05-06 198 * Tegra20 HW appears to have a bug such that PCIe device interrupts, whether b4f173752a5618 Stephen Warren 2013-05-06 199 * they are legacy IRQs or MSI, are lost when LP2 is enabled. To work around b4f173752a5618 Stephen Warren 2013-05-06 200 * this, simply disable LP2 if the PCI driver and DT node are both enabled. b4f173752a5618 Stephen Warren 2013-05-06 201 */ b4f173752a5618 Stephen Warren 2013-05-06 202 void tegra20_cpuidle_pcie_irqs_in_use(void) b4f173752a5618 Stephen Warren 2013-05-06 203 { b4f173752a5618 Stephen Warren 2013-05-06 204 pr_info_once( b4f173752a5618 Stephen Warren 2013-05-06 205 "Disabling cpuidle LP2 state, since PCIe IRQs are in use\n"); b4f173752a5618 Stephen Warren 2013-05-06 @206 tegra_idle_driver.states[1].disabled = true; b4f173752a5618 Stephen Warren 2013-05-06 207 } b4f173752a5618 Stephen Warren 2013-05-06 208 :::::: The code at line 206 was first introduced by commit :::::: b4f173752a56187bd55752b0474429202f2ab1d3 ARM: tegra: disable LP2 cpuidle state if PCIe is enabled :::::: TO: Stephen Warren <swarren(a)nvidia.com&gt; :::::: CC: Stephen Warren <swarren(a)nvidia.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org