From f4133236d6473072b5982c1182991eade6ff5bae Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Tue, 26 Oct 2010 17:35:14 +0000 Subject: powerpc/pseries: Checking for pdn->parent is redundant The device tree root is never a pci bus, and will not have a PCI_DN(pdn), so the check for PCI_DN added in 650f7b3b2f0ead0673e90452cf3dedde97c537ba makes the check for pdn->parent redundant and it can be removed. Signed-off-by: Milton Miller Signed-off-by: Nishanth Aravamudan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/iommu.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 0dbadbb34f3a..dae3f8847117 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -530,10 +530,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev) } pr_debug(" parent is %s\n", pdn->full_name); - /* Check for parent == NULL so we don't try to setup the empty EADS - * slots on POWER4 machines. - */ - if (dma_window == NULL || pdn->parent == NULL) { + 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; -- cgit v1.2.3