tree: https://github.com/jonhunter/linux tegra/for-next head: 6915f42702bbfded22b4121a42fb2e653b51dfe0 commit: 9396c239c960ba11e731c588c84bde0373a20172 [10/13] Revert "gpio: tegra: Ensure pinctrl input-enable is set for interrupts" config: arm-randconfig-r001-20210417 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project f549176ad976caa3e19edd036df9a7e12770af7c) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/jonhunter/linux/commit/9396c239c960ba11e731c588c84bde0... git remote add jonhunter https://github.com/jonhunter/linux git fetch --no-tags jonhunter tegra/for-next git checkout 9396c239c960ba11e731c588c84bde0373a20172 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang 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 >>): ret = gpiochip_reqres_irq(chip, d->hwirq); ^ drivers/gpio/gpio-tegra.c:592:6: error: use of undeclared identifier 'ret' if (ret < 0) ^ drivers/gpio/gpio-tegra.c:595:9: error: use of undeclared identifier 'ret' return ret; ^ 3 errors generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for QCOM_SCM Depends on (ARM || ARM64) && HAVE_ARM_SMCCC Selected by - ARM_QCOM_SPM_CPUIDLE && CPU_IDLE && (ARM || ARM64) && (ARCH_QCOM || COMPILE_TEST && !ARM64 && MMU vim +/ret +591 drivers/gpio/gpio-tegra.c 66fecef5bde078 Thierry Reding 2020-11-27 583 66fecef5bde078 Thierry Reding 2020-11-27 584 static int tegra_gpio_irq_request_resources(struct irq_data *d) 66fecef5bde078 Thierry Reding 2020-11-27 585 { 66fecef5bde078 Thierry Reding 2020-11-27 586 struct gpio_chip *chip = irq_data_get_irq_chip_data(d); 66fecef5bde078 Thierry Reding 2020-11-27 587 struct tegra_gpio_info *tgi = gpiochip_get_data(chip); 66fecef5bde078 Thierry Reding 2020-11-27 588 9396c239c960ba Jon Hunter 2021-04-17 589 tegra_gpio_enable(tgi, d->hwirq); 66fecef5bde078 Thierry Reding 2020-11-27 590 ae9772caf4b5b3 Jon Hunter 2021-02-05 @591 ret = gpiochip_reqres_irq(chip, d->hwirq); ae9772caf4b5b3 Jon Hunter 2021-02-05 592 if (ret < 0) ae9772caf4b5b3 Jon Hunter 2021-02-05 593 tegra_gpio_disable(tgi, d->hwirq); ae9772caf4b5b3 Jon Hunter 2021-02-05 594 ae9772caf4b5b3 Jon Hunter 2021-02-05 595 return ret; 66fecef5bde078 Thierry Reding 2020-11-27 596 } 66fecef5bde078 Thierry Reding 2020-11-27 597 :::::: The code at line 591 was first introduced by commit :::::: ae9772caf4b5b38fc5f2767ffc2422c68f0d37eb gpio: tegra: Disable the GPIO if requesting IRQ resources fails :::::: TO: Jon Hunter <jonathanh(a)nvidia.com&gt; :::::: CC: Jon Hunter <jonathanh(a)nvidia.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org