Dan Williams <[email protected]> writes:

> A 'struct device_type' instance can carry default attributes for the
> device. Use this facility to remove the export of
> nd_mapping_attribute_group and put the responsibility on the core rather
> than leaf implementations to define this attribute.
>

Reviewed-by: Aneesh Kumar K.V <[email protected]>

> Cc: Ira Weiny <[email protected]>
> Cc: Michael Ellerman <[email protected]>
> Cc: "Oliver O'Halloran" <[email protected]>
> Cc: Vishal Verma <[email protected]>
> Cc: Aneesh Kumar K.V <[email protected]>
> Signed-off-by: Dan Williams <[email protected]>
> ---
>  arch/powerpc/platforms/pseries/papr_scm.c |    6 ------
>  drivers/acpi/nfit/core.c                  |    1 -
>  drivers/nvdimm/region_devs.c              |    4 ++--
>  include/linux/libnvdimm.h                 |    1 -
>  4 files changed, 2 insertions(+), 10 deletions(-)
>
> diff --git a/arch/powerpc/platforms/pseries/papr_scm.c 
> b/arch/powerpc/platforms/pseries/papr_scm.c
> index 6428834d7cd5..0405fb769336 100644
> --- a/arch/powerpc/platforms/pseries/papr_scm.c
> +++ b/arch/powerpc/platforms/pseries/papr_scm.c
> @@ -284,11 +284,6 @@ int papr_scm_ndctl(struct nvdimm_bus_descriptor 
> *nd_desc, struct nvdimm *nvdimm,
>       return 0;
>  }
>  
> -static const struct attribute_group *region_attr_groups[] = {
> -     &nd_mapping_attribute_group,
> -     NULL,
> -};
> -
>  static const struct attribute_group *bus_attr_groups[] = {
>       &nvdimm_bus_attribute_group,
>       NULL,
> @@ -362,7 +357,6 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
>       mapping.size = p->blocks * p->block_size; // XXX: potential overflow?
>  
>       memset(&ndr_desc, 0, sizeof(ndr_desc));
> -     ndr_desc.attr_groups = region_attr_groups;
>       target_nid = dev_to_node(&p->pdev->dev);
>       online_nid = papr_scm_node(target_nid);
>       ndr_desc.numa_node = online_nid;
> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index 99e20b8b6ea0..69c406ecc3a6 100644
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -2196,7 +2196,6 @@ static const struct attribute_group 
> acpi_nfit_region_attribute_group = {
>  };
>  
>  static const struct attribute_group *acpi_nfit_region_attribute_groups[] = {
> -     &nd_mapping_attribute_group,
>       &acpi_nfit_region_attribute_group,
>       NULL,
>  };
> diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
> index f97166583294..0afc1973e938 100644
> --- a/drivers/nvdimm/region_devs.c
> +++ b/drivers/nvdimm/region_devs.c
> @@ -751,11 +751,10 @@ static struct attribute *mapping_attributes[] = {
>       NULL,
>  };
>  
> -struct attribute_group nd_mapping_attribute_group = {
> +static const struct attribute_group nd_mapping_attribute_group = {
>       .is_visible = mapping_visible,
>       .attrs = mapping_attributes,
>  };
> -EXPORT_SYMBOL_GPL(nd_mapping_attribute_group);
>  
>  static const struct attribute_group nd_region_attribute_group = {
>       .attrs = nd_region_attributes,
> @@ -766,6 +765,7 @@ static const struct attribute_group 
> *nd_region_attribute_groups[] = {
>       &nd_device_attribute_group,
>       &nd_region_attribute_group,
>       &nd_numa_attribute_group,
> +     &nd_mapping_attribute_group,
>       NULL,
>  };
>  
> diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
> index 312248d334c7..eb597d1cb891 100644
> --- a/include/linux/libnvdimm.h
> +++ b/include/linux/libnvdimm.h
> @@ -67,7 +67,6 @@ enum {
>  
>  extern struct attribute_group nvdimm_bus_attribute_group;
>  extern struct attribute_group nvdimm_attribute_group;
> -extern struct attribute_group nd_mapping_attribute_group;
>  
>  struct nvdimm;
>  struct nvdimm_bus_descriptor;
> _______________________________________________
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