Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on tip/x86/core tip/irq/core linus/master v5.8-rc5 next-20200717] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Thomas-Gleixner/genirq-affinity-... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68 config: parisc-defconfig (attached as .config) compiler: hppa-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): 217 | static inline boot irq_init_effective_affinity(struct irq_data *data, | ^~~~ kernel/irq/manage.c: In function 'irq_init_effective_affinity': 218 | const struct cpumask *mask) { } | ^~~~~~~ vim +/boot +217 kernel/irq/manage.c 209 210 static inline void irq_init_effective_affinity(struct irq_data *data, 211 const struct cpumask *mask) 212 { 213 cpumask_copy(irq_data_get_effective_affinity_mask(data), mask); 214 } 215 #else 216 static inline void irq_validate_effective_affinity(struct irq_data *data) { } 219 #endif 220 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org