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| author | Nishanth Aravamudan <nacc@us.ibm.com> | 2010-10-26 17:35:14 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-12-09 15:17:50 +1100 |
| commit | f4133236d6473072b5982c1182991eade6ff5bae (patch) | |
| tree | fda913b77f0a4567c122d1721d63a1232088f53a | |
| parent | 7372cfb88f71ed975c8588d1ca5ecc8bb9ec7c7b (diff) | |
| download | linux-f4133236d6473072b5982c1182991eade6ff5bae.tar.gz linux-f4133236d6473072b5982c1182991eade6ff5bae.tar.bz2 linux-f4133236d6473072b5982c1182991eade6ff5bae.zip | |
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 <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 5 |
1 files changed, 1 insertions, 4 deletions
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; |