[kbuild-all] Re: [PATCH] irqchip/stm32-exti: map direct event to irq parent

[1 <text/plain; us-ascii (7bit)>] Hi Alexandre, I love your patch! Perhaps something to improve: [auto build test WARNING on stm32/stm32-next] [also build test WARNING on soc/for-next v5.8-rc4 next-20200707] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Alexandre-Torgue/irqchip-stm32-e... base: https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next config: arm-randconfig-s031-20200707 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-31-gabbfd661-dirty # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/build_bug.h:5, from include/linux/bits.h:23, from include/linux/bitops.h:5, from drivers/irqchip/irq-stm32-exti.c:8: drivers/irqchip/irq-stm32-exti.c: In function 'stm32_exti_h_domain_alloc': drivers/irqchip/irq-stm32-exti.c:683:23: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 683 | if (desc->irq_parent >= 0) { | ^~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ >> drivers/irqchip/irq-stm32-exti.c:683:2: note: in expansion of macro 'if' 683 | if (desc->irq_parent >= 0) {