Re: [PATCH v6] driver core: platform: set numa_node before platform_device_add()

[Jinhui Guo]

> On Mon, Sep 18, 2023 at 3:46 PM Jinhui Guo <guojinhui.liam@xxxxxxxxxxxxx> wrote:
> >
> > Setting the devices' numa_node needs to be done in
> > platform_device_register_full(), because that's where the
> > platform device object is allocated.
> >
> > Fixes: 4a60406d3592 ("driver core: platform: expose numa_node to users in sysfs")
> > Cc: stable@xxxxxxxxxxxxxxx
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > Closes: https://lore.kernel.org/oe-kbuild-all/202309122309.mbxAnAIe-lkp@xxxxxxxxx/
> > Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Reviewed-by: Rafael J. Wysocki <rafael@xxxxxxxxxx>
> 
> No, I haven't given you this tag.
> 
> I don't think that Greg has given you the one above either.
> 
> Please don't add tage that you haven't received to your patches,
> because they are not applicable with incorrect tags.
>

I appologize to it. I just misunderstand what it means. I will drop it out soon.
 
> > Signed-off-by: Jinhui Guo <guojinhui.liam@xxxxxxxxxxxxx>
> > ---
> > V5 -> V6:
> >   1. Update subject to correct function name platform_device_add().
> >   2. Provide a more clear and accurate description of the changes
> >      made in commit (suggested by Rafael J. Wysocki).
> >   3. Add reviewer name.
> >
> > V4 -> V5:
> >   Add Cc: stable line and changes from the previous submited patches.
> >
> > V3 -> V4:
> >   Refactor code to be an ACPI function call.
> >
> > V2 -> V3:
> >   Fix Signed-off name.
> >
> > V1 -> V2:
> >   Fix compile error without enabling CONFIG_ACPI.
> > ---
> >
> >  drivers/acpi/acpi_platform.c | 4 +---
> >  drivers/base/platform.c      | 1 +
> >  include/linux/acpi.h         | 5 +++++
> >  3 files changed, 7 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
> > index 48d15dd785f6..adcbfbdc343f 100644
> > --- a/drivers/acpi/acpi_platform.c
> > +++ b/drivers/acpi/acpi_platform.c
> > @@ -178,11 +178,9 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
> >         if (IS_ERR(pdev))
> >                 dev_err(&adev->dev, "platform device creation failed: %ld\n",
> >                         PTR_ERR(pdev));
> > -       else {
> > -               set_dev_node(&pdev->dev, acpi_get_node(adev->handle));
> > +       else
> >                 dev_dbg(&adev->dev, "created platform device %s\n",
> >                         dev_name(&pdev->dev));
> > -       }
> >
> >         kfree(resources);
> >
> > diff --git a/drivers/base/platform.c b/drivers/base/platform.c
> > index 76bfcba25003..35c891075d95 100644
> > --- a/drivers/base/platform.c
> > +++ b/drivers/base/platform.c
> > @@ -841,6 +841,7 @@ struct platform_device *platform_device_register_full(
> >                         goto err;
> >         }
> >
> > +       set_dev_node(&pdev->dev, ACPI_NODE_GET(ACPI_COMPANION(&pdev->dev)));
> >         ret = platform_device_add(pdev);
> >         if (ret) {
> >  err:
> > diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> > index a73246c3c35e..6a349d53f19e 100644
> > --- a/include/linux/acpi.h
> > +++ b/include/linux/acpi.h
> > @@ -477,6 +477,10 @@ static inline int acpi_get_node(acpi_handle handle)
> >         return 0;
> >  }
> >  #endif
> > +
> > +#define ACPI_NODE_GET(adev) ((adev) && (adev)->handle ? \
> > +       acpi_get_node((adev)->handle) : NUMA_NO_NODE)
> > +
> >  extern int pnpacpi_disabled;
> >
> >  #define PXM_INVAL      (-1)
> > @@ -770,6 +774,7 @@ const char *acpi_get_subsystem_id(acpi_handle handle);
> >  #define ACPI_COMPANION_SET(dev, adev)  do { } while (0)
> >  #define ACPI_HANDLE(dev)               (NULL)
> >  #define ACPI_HANDLE_FWNODE(fwnode)     (NULL)
> > +#define ACPI_NODE_GET(adev)            NUMA_NO_NODE
> >
> >  #include <acpi/acpi_numa.h>
> >
> > --
> > 2.20.1
> >