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authorDan Williams <dan.j.williams@intel.com>2019-11-13 04:08:56 +0300
committerDan Williams <dan.j.williams@intel.com>2019-11-19 20:52:12 +0300
commite755799aefa9385469bec49b2c2ccf1aaa33829a (patch)
tree62dedee6e71c5c6f7f6ec3ab690c32be1b6f770d /drivers/nvdimm
parent360eba7ebdf716194ed2ede1ebc3ce0f9790a91c (diff)
downloadlinux-e755799aefa9385469bec49b2c2ccf1aaa33829a.tar.xz
libnvdimm: Move nvdimm_bus_attribute_group to device_type
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
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/bus.c9
-rw-r--r--drivers/nvdimm/core.c8
-rw-r--r--drivers/nvdimm/e820.c6
-rw-r--r--drivers/nvdimm/nd.h1
-rw-r--r--drivers/nvdimm/of_pmem.c6
5 files changed, 14 insertions, 16 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 28e1b265aa63..1d330d46d036 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -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;
diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 9204f1e9fd14..81231ca23db0 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -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)
{
diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c
index 9a971a59dec7..e02f60ad6c99 100644
--- a/drivers/nvdimm/e820.c
+++ b/drivers/nvdimm/e820.c
@@ -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);
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index ec3d5f619957..c9f6a5b5253a 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -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);
diff --git a/drivers/nvdimm/of_pmem.c b/drivers/nvdimm/of_pmem.c
index c0b5ac36df9d..8224d1431ea9 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -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;