tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-4.4 head: 406ac1284a7e2ecc563c113dd80760ac34fe775e commit: 48a95280236f1251065b24e29b417a63951bf224 [76/87] x86/PCI: VMD: Add quirk for AER to ignore source ID config: alpha-defconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 7.5.0 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 48a95280236f1251065b24e29b417a63951bf224 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross ARCH=alpha 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 >>): In file included from drivers/pci/quirks.c:29:0: drivers/pci/pci.h: In function 'pci_match_one_device': drivers/pci/pci.h:202:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && ^~ drivers/pci/pci.h:203:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] (id->device == PCI_ANY_ID || id->device == dev->device) && ^~ drivers/pci/pci.h:204:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && ^~ drivers/pci/pci.h:205:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && ^~ drivers/pci/quirks.c: In function 'quirk_via_vlink': drivers/pci/quirks.c:943:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi || ^ drivers/pci/quirks.c:944:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] PCI_SLOT(dev->devfn) < via_vlink_dev_lo) ^ drivers/pci/quirks.c: In function 'pci_quirk_intel_pch_acs_match': drivers/pci/quirks.c:3888:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < ARRAY_SIZE(pci_quirk_intel_pch_acs_ids); i++) ^ drivers/pci/quirks.c: In function 'quirk_no_aersid': pdev->bus->bus_flags |= PCI_BUS_FLAGS_NO_AERSID; ^~~~~~~~~~~~~~~~~~~~~~~ PCI_BUS_FLAGS_NO_MSI drivers/pci/quirks.c:4250:27: note: each undeclared identifier is reported only once for each function it appears in drivers/pci/quirks.c: In function 'quirk_netmos': drivers/pci/quirks.c:1904:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && ^ drivers/pci/quirks.c:1907:2: note: here case PCI_DEVICE_ID_NETMOS_9735: ^~~~ vim +4250 drivers/pci/quirks.c 4239 4240 /* 4241 * VMD-enabled root ports will change the source ID for all messages 4242 * to the VMD device. Rather than doing device matching with the source 4243 * ID, the AER driver should traverse the child device tree, reading 4244 * AER registers to find the faulting device. 4245 */ 4246 static void quirk_no_aersid(struct pci_dev *pdev) 4247 { 4248 /* VMD Domain */ 4249 if (pdev->bus->sysdata && pci_domain_nr(pdev->bus) >= 0x10000) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org