tree: https://github.com/0day-ci/linux/commits/UPDATE-20191127-073645/James-Sew... head: d9604ccbe460b68657fafe31b7fbdf11a96c38b7 commit: d9604ccbe460b68657fafe31b7fbdf11a96c38b7 [1/1] PCI: Add DMA alias quirk for PLX PEX NTB config: riscv-defconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout d9604ccbe460b68657fafe31b7fbdf11a96c38b7 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers//pci/quirks.c: In function 'quirk_plx_ntb_dma_alias': pci_add_dma_alias_range(pdev, 0, 256); ^~~~~~~~~~~~~~~~~~~~~~~ pci_add_dma_alias cc1: some warnings being treated as errors vim +5387 drivers//pci/quirks.c 5376 5377 /* 5378 * PLX NTB uses devfn proxy IDs to move TLPs between NT endpoints. These IDs 5379 * are used to forward responses to the originator on the other side of the 5380 * NTB. Alias all possible IDs to the NTB to permit access when the IOMMU is 5381 * turned on. 5382 */ 5383 static void quirk_plx_ntb_dma_alias(struct pci_dev *pdev) 5384 { 5385 pci_info(pdev, "Setting PLX NTB proxy ID aliases\n"); 5386 /* PLX NTB may use all 256 devfns */ 5388 } 5389 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, 0x87b0, quirk_plx_ntb_dma_alias); 5390 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, 0x87b1, quirk_plx_ntb_dma_alias); 5391 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation