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    Subject[RFC PATCH 07/11] ppc/iommu: do not need to check for dma_window == NULL
    Date
    The block in pci_dma_dev_setup_pSeriesLP for dma_window == NULL can be
    removed because we will only teminate the loop if we had already allocated
    a iommu table for that node or we found a window. While there may be
    no window for the device, the intresting part is if we are reusing a
    table or creating it for the first device under it.

    Signed-off-by: Milton Miller <miltonm@bga.com>
    Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
    ---
    arch/powerpc/platforms/pseries/iommu.c | 6 ------
    1 files changed, 0 insertions(+), 6 deletions(-)

    diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
    index 0ae5a60..9d564b9 100644
    --- a/arch/powerpc/platforms/pseries/iommu.c
    +++ b/arch/powerpc/platforms/pseries/iommu.c
    @@ -530,12 +530,6 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
    }
    pr_debug(" parent is %s\n", pdn->full_name);

    - if (dma_window == NULL) {
    - pr_debug(" no dma window for device, linking to parent\n");
    - set_iommu_table_base(&dev->dev, PCI_DN(pdn)->iommu_table);
    - return;
    - }
    -
    pci = PCI_DN(pdn);
    if (!pci->iommu_table) {
    tbl = kzalloc_node(sizeof(struct iommu_table), GFP_KERNEL,
    --
    1.7.1


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