tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git devicemsi head: 67d94e5e316843b1af2b0c4cf5d4f8e9a91d97b4 commit: 67d94e5e316843b1af2b0c4cf5d4f8e9a91d97b4 [38/38] irqchip: Add IMS array driver - NOT FOR MERGING config: arc-allyesconfig (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 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 git checkout 67d94e5e316843b1af2b0c4cf5d4f8e9a91d97b4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): drivers/irqchip/irq-ims-msi.c: In function 'ims_free_msi_store': 65 | struct msi_domain_info *info = domain->host_data; | ^~ drivers/irqchip/irq-ims-msi.c: At top level: 122 | pci_ims_create_msi_irq_domain(struct pci_dev *pdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id... git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git git fetch --no-tags tglx-devel devicemsi git checkout 67d94e5e316843b1af2b0c4cf5d4f8e9a91d97b4 vim +65 drivers/irqchip/irq-ims-msi.c 62 63 static void ims_free_msi_store(struct irq_domain *domain, struct device *dev) 64 { 66 struct ims_data *ims = info->data; 67 struct msi_desc *entry; 68 69 for_each_msi_entry(entry, dev) { 70 if (entry->device_msi.priv_iomem) { 71 clear_bit(entry->device_msi.hwirq, ims->map); 72 ims_reset_slot(entry->device_msi.priv_iomem); 73 entry->device_msi.priv_iomem = NULL; 74 entry->device_msi.hwirq = 0; 75 } 76 } 77 } 78 79 static int ims_alloc_msi_store(struct irq_domain *domain, struct device *dev, 80 int nvec) 81 { 82 struct msi_domain_info *info = domain->host_data; 83 struct ims_data *ims = info->data; 84 struct msi_desc *entry; 85 86 for_each_msi_entry(entry, dev) { 87 unsigned int idx; 88 89 idx = find_first_zero_bit(ims->map, ims->info.max_slots); 90 if (idx >= ims->info.max_slots) 91 goto fail; 92 set_bit(idx, ims->map); 93 entry->device_msi.priv_iomem = &ims->info.slots[idx]; 94 entry->device_msi.hwirq = idx; 95 } 96 return 0; 97 98 fail: 99 ims_free_msi_store(domain, dev); 100 return -ENOSPC; 101 } 102 103 struct ims_domain_template { 104 struct msi_domain_ops ops; 105 struct msi_domain_info info; 106 }; 107 108 static const struct ims_domain_template ims_domain_template = { 109 .ops = { 110 .msi_alloc_store = ims_alloc_msi_store, 111 .msi_free_store = ims_free_msi_store, 112 }, 113 .info = { 114 .flags = MSI_FLAG_USE_DEF_DOM_OPS | 115 MSI_FLAG_USE_DEF_CHIP_OPS, 116 .handler = handle_edge_irq, 117 .handler_name = "edge", 118 }, 119 }; 120 121 struct irq_domain * --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org