From: Nishanth Aravamudan Date: Tue, 26 Oct 2010 17:35:15 +0000 (+0000) Subject: powerpc/pseries: Do not need to check for dma_window == NULL X-Git-Tag: v2.6.38-rc1~405^2~19 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=4af2da25ede8af6536254e92b6ed5c4026105870;p=~shefty%2Frdma-dev.git powerpc/pseries: Do not need to check for dma_window == NULL 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 Signed-off-by: Nishanth Aravamudan Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index dae3f884711..0c1958ac101 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,