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SubjectRe: [PATCH v9 5/6] PCI: generic: Make pci-host-generic driver numa aware
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On Mon, Jan 18, 2016 at 11:11 PM, David Daney <ddaney.cavm@gmail.com> wrote:
> On 01/18/2016 08:36 AM, Ganapatrao Kulkarni wrote:
>>
>> update numa_node of device associated with pci bus.
>> moved down devm_kzalloc to allocate from node memory.
>>
>> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
>> ---
>> drivers/pci/host/pci-host-generic.c | 9 ++++++---
>> 1 file changed, 6 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/pci/host/pci-host-generic.c
>> b/drivers/pci/host/pci-host-generic.c
>> index 5434c90..0e1ce06 100644
>> --- a/drivers/pci/host/pci-host-generic.c
>> +++ b/drivers/pci/host/pci-host-generic.c
>> @@ -215,11 +215,9 @@ static int gen_pci_probe(struct platform_device
>> *pdev)
>> const struct of_device_id *of_id;
>> struct device *dev = &pdev->dev;
>> struct device_node *np = dev->of_node;
>> - struct gen_pci *pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
>> + struct gen_pci *pci;
>> struct pci_bus *bus, *child;
>>
>> - if (!pci)
>> - return -ENOMEM;
>>
>> type = of_get_property(np, "device_type", NULL);
>> if (!type || strcmp(type, "pci")) {
>> @@ -230,6 +228,11 @@ static int gen_pci_probe(struct platform_device
>> *pdev)
>> of_pci_check_probe_only();
>>
>> of_id = of_match_node(gen_pci_of_match, np);
>> + set_dev_node(dev, of_node_to_nid(np));
>
>
> This shouldn't be done in individual platform_drivers, but instead in the
> device probing code.
>
> There is code that does this in drivers/of/platform.c and
> drivers/of/device.c Is that not being called for the pci-host-gweneric
> devices? If not, we should figure out why, and perhaps attempt to fix it
> rather than doing it here.
is it more appropriate to call of_platform_device_create ?

--- a/drivers/pci/host/pci-host-generic.c
+++ b/drivers/pci/host/pci-host-generic.c
@@ -24,6 +24,7 @@
#include <linux/of_address.h>
#include <linux/of_pci.h>
#include <linux/platform_device.h>
+#include <linux/of_platform.h>

struct gen_pci;

@@ -466,7 +467,7 @@ static int gen_pci_probe(struct platform_device *pdev)
of_pci_check_probe_only();

of_id = of_match_node(gen_pci_of_match, np);
- set_dev_node(dev, of_node_to_nid(np));
+ of_platform_device_create(np, NULL, NULL);
pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
if (!pci)
return -ENOMEM;
>
>
>
>> + pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
>> + if (!pci)
>> + return -ENOMEM;
>> +
>> pci->cfg.ops = (struct gen_pci_cfg_bus_ops *)of_id->data;
>> pci->host.dev.parent = dev;
>> INIT_LIST_HEAD(&pci->host.windows);
>>
>
thanks
Ganapat

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