tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 3aa6f5082286ec74926f3587b05697ba2fd0ace7 commit: ec866be6ec547c9e1cc4451f04250e08b5fe67c7 [2651/2892] clocksource/drivers/hyper-v: Move handling of STIMER0 interrupts config: i386-randconfig-r031-20210309 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ec866be6ec547c9e1cc4451f04250e08b5fe67c7 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ec866be6ec547c9e1cc4451f04250e08b5fe67c7 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/x86/kernel/cpu/mshyperv.c:94:6: warning: no previous prototype for 'hv_setup_stimer0_handler' [-Wmissing-prototypes] 94 | void hv_setup_stimer0_handler(void (*handler)(void)) | ^~~~~~~~~~~~~~~~~~~~~~~~ >> arch/x86/kernel/cpu/mshyperv.c:99:6: warning: no previous prototype for 'hv_remove_stimer0_handler' [-Wmissing-prototypes] 99 | void hv_remove_stimer0_handler(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ -- >> drivers/clocksource/hyperv_timer.c:190:13: warning: no previous prototype for 'hv_setup_stimer0_handler' [-Wmissing-prototypes] 190 | void __weak hv_setup_stimer0_handler(void (*handler)(void)) | ^~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/clocksource/hyperv_timer.c:194:13: warning: no previous prototype for 'hv_remove_stimer0_handler' [-Wmissing-prototypes] 194 | void __weak hv_remove_stimer0_handler(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/hv_setup_stimer0_handler +94 arch/x86/kernel/cpu/mshyperv.c 92 93 /* For x86/x64, override weak placeholders in hyperv_timer.c */ > 94 void hv_setup_stimer0_handler(void (*handler)(void)) 95 { 96 hv_stimer0_handler = handler; 97 } 98 > 99 void hv_remove_stimer0_handler(void) 100 { 101 /* We have no way to deallocate the interrupt gate */ 102 hv_stimer0_handler = NULL; 103 } 104 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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