tree: https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git dev/arm64 head: 715cdf131dd8fcb33591dc7143d193050368ecc1 commit: 39649970d5e2d161268189e1dcb9b3cb7a6ee03b [1/3] PCI: hv: Avoid the retarget interrupt hypercall in irq_unmask() on ARM64 config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220214/202202140532.7tKzn8ca-lk...) 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/boqun/linux.git/commit/?i... git remote add boqun https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git git fetch --no-tags boqun dev/arm64 git checkout 39649970d5e2d161268189e1dcb9b3cb7a6ee03b # 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/ drivers/pci/ kernel// If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 769 | static void hv_set_msi_entry_from_desc(union hv_msi_entry *msi_entry, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/hv_set_msi_entry_from_desc +769 drivers/pci/controller/pci-hyperv.c d9932b46915664 Sunil Muthuswamy 2022-01-05 768 d9932b46915664 Sunil Muthuswamy 2022-01-05 @769 static void hv_set_msi_entry_from_desc(union hv_msi_entry *msi_entry, d9932b46915664 Sunil Muthuswamy 2022-01-05 770 struct msi_desc *msi_desc) d9932b46915664 Sunil Muthuswamy 2022-01-05 771 { d9932b46915664 Sunil Muthuswamy 2022-01-05 772 msi_entry->address = ((u64)msi_desc->msg.address_hi << 32) | d9932b46915664 Sunil Muthuswamy 2022-01-05 773 msi_desc->msg.address_lo; d9932b46915664 Sunil Muthuswamy 2022-01-05 774 msi_entry->data = msi_desc->msg.data; d9932b46915664 Sunil Muthuswamy 2022-01-05 775 } d9932b46915664 Sunil Muthuswamy 2022-01-05 776 :::::: The code at line 769 was first introduced by commit :::::: d9932b46915664c88709d59927fa67e797adec56 PCI: hv: Add arm64 Hyper-V vPCI support :::::: TO: Sunil Muthuswamy <sunilmut(a)microsoft.com&gt; :::::: CC: Bjorn Helgaas <bhelgaas(a)google.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org