powerpc/pci: Remove OF node back pointer from pci_dn
The check_req() helper uses pci_get_pdn() to get an OF node pointer. pci_get_pdn() returns a pci_dn pointer which either: 1) from the OF node returned by pci_device_to_OF_node(); 2) from the parent child_list where entries don't have OF node pointers. Since check_req() does not care about 2), it can call pci_device_to_OF_node() directly, hence the change. The find_pe_dn() helper uses embedded pci_dn to get an OF node which is also stored in edev->pdev so let's take a shortcut and call pci_device_to_OF_node() directly. With these 2 changes, we can finally get rid of the OF node back pointer. Signed-off-by:Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
parent
14db3d52
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