On Wed, Nov 26, 2014 at 09:58:30AM +1100, Benjamin Herrenschmidt wrote:
>On Tue, 2014-11-25 at 09:49 +1100, Gavin Shan wrote:
>> The patch moves pcibios_find_pci_bus() to PPC kerenl directory so
>> that it can be reused by hotplug code for pSeries and PowerNV
>> platform at the same time.
>>
>> Signed-off-by: Gavin Shan <gws...@linux.vnet.ibm.com>
>
>Acked-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
>
Thanks, Ben. But Michael needn't pick it up and merge it as the left
patches need reworks to some extent...
Thanks,
Gavin
>> ---
>> arch/powerpc/kernel/pci-hotplug.c | 36
>> ++++++++++++++++++++++++++++++
>> arch/powerpc/platforms/pseries/pci_dlpar.c | 32 --------------------------
>> 2 files changed, 36 insertions(+), 32 deletions(-)
>>
>> diff --git a/arch/powerpc/kernel/pci-hotplug.c
>> b/arch/powerpc/kernel/pci-hotplug.c
>> index 5b78917..6e2b4e3 100644
>> --- a/arch/powerpc/kernel/pci-hotplug.c
>> +++ b/arch/powerpc/kernel/pci-hotplug.c
>> @@ -21,6 +21,42 @@
>> #include <asm/firmware.h>
>> #include <asm/eeh.h>
>>
>> +static struct pci_bus *find_pci_bus(struct pci_bus *bus,
>> + struct device_node *dn)
>> +{
>> + struct pci_bus *tmp, *child = NULL;
>> + struct device_node *busdn;
>> +
>> + busdn = pci_bus_to_OF_node(bus);
>> + if (busdn == dn)
>> + return bus;
>> +
>> + list_for_each_entry(tmp, &bus->children, node) {
>> + child = find_pci_bus(tmp, dn);
>> + if (child)
>> + break;
>> + }
>> +
>> + return child;
>> +}
>> +
>> +/**
>> + * pcibios_find_pci_bus - find PCI bus according to the given device node
>> + * @dn: Device node
>> + *
>> + * Find the corresponding PCI bus according to the given device node.
>> + */
>> +struct pci_bus *pcibios_find_pci_bus(struct device_node *dn)
>> +{
>> + struct pci_dn *pdn = PCI_DN(dn);
>> +
>> + if (!pdn || !pdn->phb || !pdn->phb->bus)
>> + return NULL;
>> +
>> + return find_pci_bus(pdn->phb->bus, dn);
>> +}
>> +EXPORT_SYMBOL_GPL(pcibios_find_pci_bus);
>> +
>> /**
>> * pcibios_release_device - release PCI device
>> * @dev: PCI device
>> diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c
>> b/arch/powerpc/platforms/pseries/pci_dlpar.c
>> index 89e2381..98c50bc 100644
>> --- a/arch/powerpc/platforms/pseries/pci_dlpar.c
>> +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
>> @@ -32,38 +32,6 @@
>> #include <asm/firmware.h>
>> #include <asm/eeh.h>
>>
>> -static struct pci_bus *
>> -find_bus_among_children(struct pci_bus *bus,
>> - struct device_node *dn)
>> -{
>> - struct pci_bus *child = NULL;
>> - struct pci_bus *tmp;
>> - struct device_node *busdn;
>> -
>> - busdn = pci_bus_to_OF_node(bus);
>> - if (busdn == dn)
>> - return bus;
>> -
>> - list_for_each_entry(tmp, &bus->children, node) {
>> - child = find_bus_among_children(tmp, dn);
>> - if (child)
>> - break;
>> - };
>> - return child;
>> -}
>> -
>> -struct pci_bus *
>> -pcibios_find_pci_bus(struct device_node *dn)
>> -{
>> - struct pci_dn *pdn = dn->data;
>> -
>> - if (!pdn || !pdn->phb || !pdn->phb->bus)
>> - return NULL;
>> -
>> - return find_bus_among_children(pdn->phb->bus, dn);
>> -}
>> -EXPORT_SYMBOL_GPL(pcibios_find_pci_bus);
>> -
>> struct pci_controller *init_phb_dynamic(struct device_node *dn)
>> {
>> struct pci_controller *phb;
>
>
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