Hi Yongji, [auto build test WARNING on pci/next] [also build test WARNING on v4.10-rc4 next-20170120] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Yongji-Xie/PCI-Ignore-requested-alignment-for-IOV-BARs/20170121-031322 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: i386-defconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): In file included from drivers/ata/ata_piix.c:88:0: drivers/ata/ata_piix.c: In function 'piix_init_sidpr': >> include/linux/pci.h:1648:44: warning: comparison between 'enum <anonymous>' and 'enum <anonymous>' [-Wenum-compare] #define pci_resource_end(dev, bar) (((bar) > PCI_ROM_RESOURCE) ? \ ^ >> include/linux/pci.h:1655:4: note: in expansion of macro 'pci_resource_end' pci_resource_end((dev), (bar)) == \ ^~~~~~~~~~~~~~~~ >> drivers/ata/ata_piix.c:1471:6: note: in expansion of macro 'pci_resource_len' pci_resource_len(pdev, PIIX_SIDPR_BAR) != PIIX_SIDPR_LEN) ^~~~~~~~~~~~~~~~ >> include/linux/pci.h:1648:44: warning: comparison between 'enum <anonymous>' and 'enum <anonymous>' [-Wenum-compare] #define pci_resource_end(dev, bar) (((bar) > PCI_ROM_RESOURCE) ? \ ^ include/linux/pci.h:1658:4: note: in expansion of macro 'pci_resource_end' (pci_resource_end((dev), (bar)) - \ ^~~~~~~~~~~~~~~~ >> drivers/ata/ata_piix.c:1471:6: note: in expansion of macro 'pci_resource_len' pci_resource_len(pdev, PIIX_SIDPR_BAR) != PIIX_SIDPR_LEN) ^~~~~~~~~~~~~~~~ vim +1648 include/linux/pci.h 1642 #define pci_root_bus_fwnode(bus) NULL 1643 #endif 1644 1645 /* these helpers provide future and backwards compatibility 1646 * for accessing popular PCI BAR info */ 1647 #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) > 1648 #define pci_resource_end(dev, bar) (((bar) > PCI_ROM_RESOURCE) ? \ 1649 (dev)->resource[(bar)].end : \ 1650 ((dev)->resource[(bar)].end - \ 1651 (dev)->res_addsize[(bar)])) 1652 #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) 1653 #define pci_resource_len(dev,bar) \ 1654 ((pci_resource_start((dev), (bar)) == 0 && \ > 1655 pci_resource_end((dev), (bar)) == \ 1656 pci_resource_start((dev), (bar))) ? 0 : \ 1657 \ 1658 (pci_resource_end((dev), (bar)) - \ --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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