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libnvdimm: Move nvdimm_bus_attribute_group to device_type

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

Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Oliver O'Halloran" <oohall@gmail.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/157309903815.1582359.6418211876315050283.stgit@dwillia2-desk3.amr.corp.intel.com
This commit is contained in:
Dan Williams 2019-11-12 17:08:56 -08:00
parent 360eba7ebd
commit e755799aef
8 changed files with 14 additions and 25 deletions
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6
arch/powerpc/platforms/pseries/papr_scm.c
View File

@ -284,11 +284,6 @@ int papr_scm_ndctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
return 0;
}
static const struct attribute_group *bus_attr_groups[] = {
&nvdimm_bus_attribute_group,
NULL,
};
static inline int papr_scm_node(int node)
{
int min_dist = INT_MAX, dist;
@ -319,7 +314,6 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
p->bus_desc.ndctl = papr_scm_ndctl;
p->bus_desc.module = THIS_MODULE;
p->bus_desc.of_node = p->pdev->dev.of_node;
p->bus_desc.attr_groups = bus_attr_groups;
p->bus_desc.provider_name = kstrdup(p->pdev->name, GFP_KERNEL);
if (!p->bus_desc.provider_name)

1
drivers/acpi/nfit/core.c
View File

@ -1404,7 +1404,6 @@ static const struct attribute_group acpi_nfit_attribute_group = {
};
static const struct attribute_group *acpi_nfit_attribute_groups[] = {
&nvdimm_bus_attribute_group,
&acpi_nfit_attribute_group,
NULL,
};

9
drivers/nvdimm/bus.c
View File

@ -300,9 +300,14 @@ static void nvdimm_bus_release(struct device *dev)
kfree(nvdimm_bus);
}
static const struct device_type nvdimm_bus_dev_type = {
.release = nvdimm_bus_release,
.groups = nvdimm_bus_attribute_groups,
};
bool is_nvdimm_bus(struct device *dev)
{
return dev->release == nvdimm_bus_release;
return dev->type == &nvdimm_bus_dev_type;
}
struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev)
@ -355,7 +360,7 @@ struct nvdimm_bus *nvdimm_bus_register(struct device *parent,
badrange_init(&nvdimm_bus->badrange);
nvdimm_bus->nd_desc = nd_desc;
nvdimm_bus->dev.parent = parent;
nvdimm_bus->dev.release = nvdimm_bus_release;
nvdimm_bus->dev.type = &nvdimm_bus_dev_type;
nvdimm_bus->dev.groups = nd_desc->attr_groups;
nvdimm_bus->dev.bus = &nvdimm_bus_type;
nvdimm_bus->dev.of_node = nd_desc->of_node;

8
drivers/nvdimm/core.c
View File

@ -385,10 +385,14 @@ static struct attribute *nvdimm_bus_attributes[] = {
NULL,
};
struct attribute_group nvdimm_bus_attribute_group = {
static const struct attribute_group nvdimm_bus_attribute_group = {
.attrs = nvdimm_bus_attributes,
};
EXPORT_SYMBOL_GPL(nvdimm_bus_attribute_group);
const struct attribute_group *nvdimm_bus_attribute_groups[] = {
&nvdimm_bus_attribute_group,
NULL,
};
int nvdimm_bus_add_badrange(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length)
{

6
drivers/nvdimm/e820.c
View File

@ -8,11 +8,6 @@
#include <linux/libnvdimm.h>
#include <linux/module.h>
static const struct attribute_group *e820_pmem_attribute_groups[] = {
&nvdimm_bus_attribute_group,
NULL,
};
static int e820_pmem_remove(struct platform_device *pdev)
{
struct nvdimm_bus *nvdimm_bus = platform_get_drvdata(pdev);
@ -55,7 +50,6 @@ static int e820_pmem_probe(struct platform_device *pdev)
struct nvdimm_bus *nvdimm_bus;
int rc = -ENXIO;
nd_desc.attr_groups = e820_pmem_attribute_groups;
nd_desc.provider_name = "e820";
nd_desc.module = THIS_MODULE;
nvdimm_bus = nvdimm_bus_register(dev, &nd_desc);

1
drivers/nvdimm/nd.h
View File

@ -241,6 +241,7 @@ void nd_region_exit(void);
struct nvdimm;
extern const struct attribute_group nd_device_attribute_group;
extern const struct attribute_group nd_numa_attribute_group;
extern const struct attribute_group *nvdimm_bus_attribute_groups[];
struct nvdimm_drvdata *to_ndd(struct nd_mapping *nd_mapping);
int nvdimm_check_config_data(struct device *dev);
int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd);

6
drivers/nvdimm/of_pmem.c
View File

@ -9,11 +9,6 @@
#include <linux/ioport.h>
#include <linux/slab.h>
static const struct attribute_group *bus_attr_groups[] = {
&nvdimm_bus_attribute_group,
NULL,
};
struct of_pmem_private {
struct nvdimm_bus_descriptor bus_desc;
struct nvdimm_bus *bus;
@ -35,7 +30,6 @@ static int of_pmem_region_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
priv->bus_desc.attr_groups = bus_attr_groups;
priv->bus_desc.provider_name = kstrdup(pdev->name, GFP_KERNEL);
priv->bus_desc.module = THIS_MODULE;
priv->bus_desc.of_node = np;

2
include/linux/libnvdimm.h
View File

@ -65,8 +65,6 @@ enum {
DPA_RESOURCE_ADJUSTED = 1 << 0,
};
extern struct attribute_group nvdimm_bus_attribute_group;
struct nvdimm;
struct nvdimm_bus_descriptor;
typedef int (*ndctl_fn)(struct nvdimm_bus_descriptor *nd_desc,