Hi Serge, [auto build test ERROR on ntb/ntb-next] [also build test ERROR on v4.9-rc7 next-20161130] [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/Serge-Semin/NTB-Alter-kernel-API-to-support-multi-port-devices/20161201-014939 base: https://github.com/jonmason/ntb ntb-next config: x86_64-randconfig-s5-12010242 (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=x86_64 Note: the linux-review/Serge-Semin/NTB-Alter-kernel-API-to-support-multi-port-devices/20161201-014939 HEAD ced946cf007084caf9a2ec237c898bbf1940b440 builds fine. It only hurts bisectibility. All error/warnings (new ones prefixed by >>): drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_ntb_link_enable': >> drivers/ntb/hw/amd/ntb_hw_amd.c:256:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo == NTB_TOPO_SEC) ^~~~~~~~~~~~ drivers/ntb/hw/amd/ntb_hw_amd.c:256:24: note: each undeclared identifier is reported only once for each function it appears in drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_ntb_link_disable': drivers/ntb/hw/amd/ntb_hw_amd.c:277:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo == NTB_TOPO_SEC) ^~~~~~~~~~~~ drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_init_ntb': >> drivers/ntb/hw/amd/ntb_hw_amd.c:880:7: error: 'NTB_TOPO_PRI' undeclared (first use in this function) case NTB_TOPO_PRI: ^~~~~~~~~~~~ drivers/ntb/hw/amd/ntb_hw_amd.c:881:7: error: 'NTB_TOPO_SEC' undeclared (first use in this function) case NTB_TOPO_SEC: ^~~~~~~~~~~~ drivers/ntb/hw/amd/ntb_hw_amd.c: In function 'amd_get_topo': drivers/ntb/hw/amd/ntb_hw_amd.c:915:10: error: 'NTB_TOPO_SEC' undeclared (first use in this function) return NTB_TOPO_SEC; ^~~~~~~~~~~~ drivers/ntb/hw/amd/ntb_hw_amd.c:917:10: error: 'NTB_TOPO_PRI' undeclared (first use in this function) return NTB_TOPO_PRI; ^~~~~~~~~~~~ >> drivers/ntb/hw/amd/ntb_hw_amd.c:918:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ -- drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'ndev_reset_unsafe_flags': drivers/ntb/hw/intel/ntb_hw_intel.c:232:8: error: implicit declaration of function 'ntb_topo_is_b2b' [-Werror=implicit-function-declaration] if (!ntb_topo_is_b2b(ndev->ntb.topo)) ^~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'intel_ntb_link_enable': >> drivers/ntb/hw/intel/ntb_hw_intel.c:1206:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo == NTB_TOPO_SEC) ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:1206:24: note: each undeclared identifier is reported only once for each function it appears in drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'intel_ntb_link_disable': drivers/ntb/hw/intel/ntb_hw_intel.c:1235:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo == NTB_TOPO_SEC) ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'atom_ppd_topo': drivers/ntb/hw/intel/ntb_hw_intel.c:1448:10: error: 'NTB_TOPO_B2B_USD' undeclared (first use in this function) return NTB_TOPO_B2B_USD; ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:1452:10: error: 'NTB_TOPO_B2B_DSD' undeclared (first use in this function) return NTB_TOPO_B2B_DSD; ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'atom_init_ntb': drivers/ntb/hw/intel/ntb_hw_intel.c:1572:7: error: 'NTB_TOPO_B2B_USD' undeclared (first use in this function) case NTB_TOPO_B2B_USD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:1573:7: error: 'NTB_TOPO_B2B_DSD' undeclared (first use in this function) case NTB_TOPO_B2B_DSD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'atom_init_dev': drivers/ntb/hw/intel/ntb_hw_intel.c:1614:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo != NTB_TOPO_SEC) { ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'skx_init_ntb': drivers/ntb/hw/intel/ntb_hw_intel.c:1789:7: error: 'NTB_TOPO_B2B_USD' undeclared (first use in this function) case NTB_TOPO_B2B_USD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:1790:7: error: 'NTB_TOPO_B2B_DSD' undeclared (first use in this function) case NTB_TOPO_B2B_DSD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'xeon_link_is_up': drivers/ntb/hw/intel/ntb_hw_intel.c:2043:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo == NTB_TOPO_SEC) ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'xeon_ppd_topo': drivers/ntb/hw/intel/ntb_hw_intel.c:2053:10: error: 'NTB_TOPO_B2B_USD' undeclared (first use in this function) return NTB_TOPO_B2B_USD; ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:2056:10: error: 'NTB_TOPO_B2B_DSD' undeclared (first use in this function) return NTB_TOPO_B2B_DSD; ^~~~~~~~~~~~~~~~ >> drivers/ntb/hw/intel/ntb_hw_intel.c:2060:10: error: 'NTB_TOPO_PRI' undeclared (first use in this function) return NTB_TOPO_PRI; ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:2064:10: error: 'NTB_TOPO_SEC' undeclared (first use in this function) return NTB_TOPO_SEC; ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'xeon_init_ntb': drivers/ntb/hw/intel/ntb_hw_intel.c:2356:7: error: 'NTB_TOPO_PRI' undeclared (first use in this function) case NTB_TOPO_PRI: ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:2374:7: error: 'NTB_TOPO_SEC' undeclared (first use in this function) case NTB_TOPO_SEC: ^~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:2386:7: error: 'NTB_TOPO_B2B_USD' undeclared (first use in this function) case NTB_TOPO_B2B_USD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c:2387:7: error: 'NTB_TOPO_B2B_DSD' undeclared (first use in this function) case NTB_TOPO_B2B_DSD: ^~~~~~~~~~~~~~~~ drivers/ntb/hw/intel/ntb_hw_intel.c: In function 'xeon_init_dev': drivers/ntb/hw/intel/ntb_hw_intel.c:2534:24: error: 'NTB_TOPO_SEC' undeclared (first use in this function) if (ndev->ntb.topo != NTB_TOPO_SEC) { ^~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/NTB_TOPO_SEC +256 drivers/ntb/hw/amd/ntb_hw_amd.c a1b36958 Xiangliang Yu 2016-01-21 250 u32 ntb_ctl; a1b36958 Xiangliang Yu 2016-01-21 251 a1b36958 Xiangliang Yu 2016-01-21 252 /* Enable event interrupt */ a1b36958 Xiangliang Yu 2016-01-21 253 ndev->int_mask &= ~AMD_EVENT_INTMASK; a1b36958 Xiangliang Yu 2016-01-21 254 writel(ndev->int_mask, mmio + AMD_INTMASK_OFFSET); a1b36958 Xiangliang Yu 2016-01-21 255 a1b36958 Xiangliang Yu 2016-01-21 @256 if (ndev->ntb.topo == NTB_TOPO_SEC) a1b36958 Xiangliang Yu 2016-01-21 257 return -EINVAL; a1b36958 Xiangliang Yu 2016-01-21 258 dev_dbg(ndev_dev(ndev), "Enabling Link.\n"); a1b36958 Xiangliang Yu 2016-01-21 259 :::::: The code at line 256 was first introduced by commit :::::: a1b3695820aa490e58915d720a1438069813008b NTB: Add support for AMD PCI-Express Non-Transparent Bridge :::::: TO: Xiangliang Yu :::::: CC: Jon Mason --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation