Hi Yi-De, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on krzk-dt/for-next arm64/for-next/core lwn/docs-next linus/master v6.3-rc6 next-20230412] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yi-De-Wu/docs-geniezone-Introduce-GenieZone-hypervisor/20230413-170932 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20230413090735.4182-7-yi-de.wu%40mediatek.com patch subject: [PATCH v1 6/6] soc: mediatek: virt: geniezone: Add irqfd support config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230413/202304132123.rrVq3AEP-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/ae996a1c7d12837f16f28975712a8bf63525cac4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yi-De-Wu/docs-geniezone-Introduce-GenieZone-hypervisor/20230413-170932 git checkout ae996a1c7d12837f16f28975712a8bf63525cac4 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/soc/mediatek/virt/geniezone/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304132123.rrVq3AEP-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/soc/mediatek/virt/geniezone/gzvm_eventfd.c:463:6: warning: no previous prototype for 'gzvm_irqfd_release' [-Wmissing-prototypes] 463 | void gzvm_irqfd_release(struct gzvm *gzvm) | ^~~~~~~~~~~~~~~~~~ vim +/gzvm_irqfd_release +463 drivers/soc/mediatek/virt/geniezone/gzvm_eventfd.c 458 459 /* 460 * This function is called as the gzvm VM fd is being released. Shutdown all 461 * irqfds that still remain open 462 */ > 463 void gzvm_irqfd_release(struct gzvm *gzvm) 464 { 465 struct gzvm_kernel_irqfd *irqfd, *tmp; 466 467 spin_lock_irq(&gzvm->irqfds.lock); 468 469 list_for_each_entry_safe(irqfd, tmp, &gzvm->irqfds.items, list) 470 irqfd_deactivate(irqfd); 471 472 spin_unlock_irq(&gzvm->irqfds.lock); 473 474 /* 475 * Block until we know all outstanding shutdown jobs have completed. 476 */ 477 flush_workqueue(irqfd_cleanup_wq); 478 } 479 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
