tree: https://github.com/Freescale/linux-fslc 5.4-2.1.x-imx head: bef3e06d83685406b847623947543314c7318b07 commit: 1b98a5088798abe3786a3c35f1f66115aef37883 [8723/16398] MLK-17290-01 irqchip: imx-irqsteer: add runtime pm support config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-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/Freescale/linux-fslc/commit/1b98a5088798abe3786a3c35f1... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc 5.4-2.1.x-imx git checkout 1b98a5088798abe3786a3c35f1f66115aef37883 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the freescale-fslc/5.4-2.1.x-imx HEAD bef3e06d83685406b847623947543314c7318b07 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/irqchip/irq-imx-irqsteer.c: In function 'imx_irqsteer_chans_enable': 204 | ret = clk_prepare_enable(irqsteer_data->ipg_clk); | ^~~~~~~~~~~~~ drivers/irqchip/irq-imx-irqsteer.c:204:27: note: each undeclared identifier is reported only once for each function it appears in Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PCIE_MOBIVEIL_HOST Depends on PCI && PCI_MSI_IRQ_DOMAIN Selected by - PCIE_MOBIVEIL_PLAT && PCI && (ARCH_ZYNQMP || COMPILE_TEST && OF vim +/irqsteer_data +204 drivers/irqchip/irq-imx-irqsteer.c 193 194 #ifdef CONFIG_PM_SLEEP 195 static int imx_irqsteer_chans_enable(struct irqsteer_data *data) 196 { 197 return 0; 198 } 199 #else 200 static int imx_irqsteer_chans_enable(struct irqsteer_data *data) 201 { 202 int ret; 203 205 if (ret) { 206 dev_err(data->dev, "failed to enable ipg clk: %d\n", ret); 207 return ret; 208 } 209 210 /* steer all IRQs into configured channel */ 211 writel_relaxed(BIT(data->channel), data->regs + CHANCTRL); 212 213 /* read back CHANCTRL register cannot reflact on HW register 214 * real value due to the HW action, so add one flag here. 215 */ 216 data->inited = true; 217 return 0; 218 } 219 #endif 220 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org