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Re: [PATCH 4/5 v2] pseries/iommu: implement DDW-aware dma_get_page_shift

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Hi Nishanth,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

config: powerpc-defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All error/warnings (new ones prefixed by >>):

   arch/powerpc/platforms/pseries/iommu.c: In function 'iommu_init_early_pSeries':
>> arch/powerpc/platforms/pseries/iommu.c:1433:9: error: 'struct machdep_calls' has no member named 'dma_get_page_shift'
      ppc_md.dma_get_page_shift = dma_get_page_shift_pSeriesLP;
            ^

vim +1433 arch/powerpc/platforms/pseries/iommu.c

  1427	
  1428		if (firmware_has_feature(FW_FEATURE_LPAR)) {
  1429			pseries_pci_controller_ops.dma_bus_setup = pci_dma_bus_setup_pSeriesLP;
  1430			pseries_pci_controller_ops.dma_dev_setup = pci_dma_dev_setup_pSeriesLP;
  1431			ppc_md.dma_set_mask = dma_set_mask_pSeriesLP;
  1432			ppc_md.dma_get_required_mask = dma_get_required_mask_pSeriesLP;
> 1433			ppc_md.dma_get_page_shift = dma_get_page_shift_pSeriesLP;
  1434		} else {
  1435			pseries_pci_controller_ops.dma_bus_setup = pci_dma_bus_setup_pSeries;
  1436			pseries_pci_controller_ops.dma_dev_setup = pci_dma_dev_setup_pSeries;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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[PATCH 0/2] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 19:20 +0200
  [PATCH 1/2] powerpc/iommu: expose IOMMU page shift Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 19:20 +0200
    [PATCH 2/2] drivers/nvme: default to the IOMMU page size on Power Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 19:30 +0200
      Re: [PATCH 2/2] drivers/nvme: default to the IOMMU page size on Power Christoph Hellwig <hch@infradead.org> - 2015-10-02 19:30 +0200
        Re: [PATCH 2/2] drivers/nvme: default to the IOMMU page size on Power Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 19:50 +0200
          Re: [PATCH 2/2] drivers/nvme: default to the IOMMU page size on Power Christoph Hellwig <hch@infradead.org> - 2015-10-02 19:50 +0200
  [PATCH 2/5 v2] powerpc/dma-mapping: override dma_get_page_shift Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:20 +0200
    [PATCH 3/5 v2] powerpc/dma: implement per-platform dma_get_page_shift Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:20 +0200
      [PATCH 4/5 v2] pseries/iommu: implement DDW-aware dma_get_page_shift Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:30 +0200
        [PATCH 5/5 v2] drivers/nvme: default to the IOMMU page size Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:40 +0200
        Re: [PATCH 4/5 v2] pseries/iommu: implement DDW-aware  dma_get_page_shift kbuild test robot <lkp@intel.com> - 2015-10-02 22:40 +0200
  [PATCH 1/5 v2] dma-mapping: add generic dma_get_page_shift API Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:20 +0200
  [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 22:20 +0200
    Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-02 23:10 +0200
      Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2015-10-02 23:40 +0200
        Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan <nacc@linux.vnet.ibm.com> - 2015-10-03 00:00 +0200
    Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2015-10-02 23:30 +0200
      Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA Christoph Hellwig <hch@infradead.org> - 2015-10-03 10:30 +0200

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