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| author |   Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-08-29 17:34:04 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-08-31 14:26:12 +1000 |
| commit | f1e08232ede8d1888d51e94940645f93a8462d75 (patch) | |
| tree | 7ede0e7b81d7f50be5ffeb09132b36cd61617265 /arch/powerpc/include/asm | |
| parent | powerpc/eeh: Reduce use of pci_dn::node (diff) | |
| download | linux-dev-f1e08232ede8d1888d51e94940645f93a8462d75.tar.xz linux-dev-f1e08232ede8d1888d51e94940645f93a8462d75.zip | |
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>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 56c67d3f0108..0b8aa1fe2d5f 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -195,7 +195,6 @@ struct pci_dn { struct pci_dn *parent; struct pci_controller *phb; /* for pci devices */ struct iommu_table_group *table_group; /* for phb's or bridges */ - struct device_node *node; /* back-pointer to the device_node */ int pci_ext_config_space; /* for pci devices */ |