tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 90c9e950c0def5c354b4a6154a2ddda3e5f214ac commit: 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf scripts: kernel-doc: add warning for comment not following kernel-doc syntax date: 10 months ago config: arm64-buildonly-randconfig-r004-20220206 (https://download.01.org/0day-ci/archive/20220206/202202060606.bblLvJEU-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/ 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/arm64/kvm/pmu-emul.c:219: warning: Function parameter or member 'vcpu' not described in 'kvm_pmu_stop_counter' >> arch/arm64/kvm/pmu-emul.c:453: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * When perf interrupt is an NMI, we cannot safely notify the vcpu corresponding arch/arm64/kvm/pmu-emul.c:469: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * When the perf event overflows, set the overflow status and inform the vcpu. vim +453 arch/arm64/kvm/pmu-emul.c b02386eb7dac75 virt/kvm/arm/pmu.c Shannon Zhao 2016-02-26 451 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 452 /** 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 @453 * When perf interrupt is an NMI, we cannot safely notify the vcpu corresponding 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 454 * to the event. 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 455 * This is why we need a callback to do it once outside of the NMI context. 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 456 */ 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 457 static void kvm_pmu_perf_overflow_notify_vcpu(struct irq_work *work) 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 458 { 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 459 struct kvm_vcpu *vcpu; 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 460 struct kvm_pmu *pmu; 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 461 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 462 pmu = container_of(work, struct kvm_pmu, overflow_work); 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 463 vcpu = kvm_pmc_to_vcpu(pmu->pmc); 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 464 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 465 kvm_vcpu_kick(vcpu); 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 466 } 95e92e45a454a1 arch/arm64/kvm/pmu-emul.c Julien Thierry 2020-09-24 467 :::::: The code at line 453 was first introduced by commit :::::: 95e92e45a454a10a8114294d0f7aec930fb85891 KVM: arm64: pmu: Make overflow handler NMI safe :::::: TO: Julien Thierry <julien.thierry@xxxxxxx> :::::: CC: Will Deacon <will@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
