On Fri, Jun 05, 2015 at 02:47:30PM -0500, Bjorn Helgaas wrote:
>"Move pcibios_find_pci_bus() from pSeries to generic powerpc code"?
>
>On Thu, Jun 04, 2015 at 04:42:00PM +1000, Gavin Shan wrote:
>> The patch moves pcibios_find_pci_bus() to PPC kerenl directory so
>
>s/kerenl/kernel/
>
Thanks. I'll fix it in next revision.
Thanks,
Gavin
>> that it can be reused by hotplug code for pSeries and PowerNV
>> platform at the same time.
>>
>> Signed-off-by: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
>> Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
>> ---
>> v5:
>> * Derived from PATCH[v4 12/21]
>> ---
>> 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 ca392fc..1482bc1 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 5d4a3df..906dbaa 100644
>> --- a/arch/powerpc/platforms/pseries/pci_dlpar.c
>> +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
>> @@ -34,38 +34,6 @@
>>
>> #include "pseries.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;
>> --
>> 2.1.0
>>
>
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