This is a note to let you know that I've just added the patch titled
libnvdimm: Move nd_device_attribute_group to device_type
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
libnvdimm-move-nd_device_attribute_group-to-device_t.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit dde0a36a4f8a76b774d391771c111449b154be45
Author: Dan Williams <dan.j.williams@xxxxxxxxx>
Date: Tue Nov 12 17:00:24 2019 -0800
libnvdimm: Move nd_device_attribute_group to device_type
[ Upstream commit adbb68293fc5950a46e3e22f9dc9c619661194ae ]
A 'struct device_type' instance can carry default attributes for the
device. Use this facility to remove the export of
nd_device_attribute_group and put the responsibility on the core rather
than leaf implementations to define this attribute.
For regions this creates a new nd_region_attribute_groups[] added to the
per-region device-type instances.
Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: "Oliver O'Halloran" <oohall@xxxxxxxxx>
Cc: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/157309901138.1582359.12909354140826530394.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Stable-dep-of: 6fd4ebfc4d61 ("libnvdimm/of_pmem: Use devm_kstrdup instead of kstrdup and check its return value")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 66fd517c48164..59304bade0a5d 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -286,7 +286,6 @@ int papr_scm_ndctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
static const struct attribute_group *region_attr_groups[] = {
&nd_region_attribute_group,
- &nd_device_attribute_group,
&nd_mapping_attribute_group,
&nd_numa_attribute_group,
NULL,
@@ -299,7 +298,6 @@ static const struct attribute_group *bus_attr_groups[] = {
static const struct attribute_group *papr_scm_dimm_groups[] = {
&nvdimm_attribute_group,
- &nd_device_attribute_group,
NULL,
};
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 793b8d9d749a0..41db477896e8e 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1700,7 +1700,6 @@ static const struct attribute_group acpi_nfit_dimm_attribute_group = {
static const struct attribute_group *acpi_nfit_dimm_attribute_groups[] = {
&nvdimm_attribute_group,
- &nd_device_attribute_group,
&acpi_nfit_dimm_attribute_group,
NULL,
};
@@ -2200,7 +2199,6 @@ static const struct attribute_group acpi_nfit_region_attribute_group = {
static const struct attribute_group *acpi_nfit_region_attribute_groups[] = {
&nd_region_attribute_group,
&nd_mapping_attribute_group,
- &nd_device_attribute_group,
&nd_numa_attribute_group,
&acpi_nfit_region_attribute_group,
NULL,
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 56f189c3129af..00f938c0eb497 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -669,10 +669,9 @@ static struct attribute *nd_device_attributes[] = {
/*
* nd_device_attribute_group - generic attributes for all devices on an nd bus
*/
-struct attribute_group nd_device_attribute_group = {
+const struct attribute_group nd_device_attribute_group = {
.attrs = nd_device_attributes,
};
-EXPORT_SYMBOL_GPL(nd_device_attribute_group);
static ssize_t numa_node_show(struct device *dev,
struct device_attribute *attr, char *buf)
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index e0f411021c59d..a35be18c5b55f 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -202,9 +202,15 @@ static void nvdimm_release(struct device *dev)
kfree(nvdimm);
}
-static struct device_type nvdimm_device_type = {
+static const struct attribute_group *nvdimm_attribute_groups[] = {
+ &nd_device_attribute_group,
+ NULL,
+};
+
+static const struct device_type nvdimm_device_type = {
.name = "nvdimm",
.release = nvdimm_release,
+ .groups = nvdimm_attribute_groups,
};
bool is_nvdimm(struct device *dev)
diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c
index 87f72f725e4fe..adde2864c6a46 100644
--- a/drivers/nvdimm/e820.c
+++ b/drivers/nvdimm/e820.c
@@ -15,7 +15,6 @@ static const struct attribute_group *e820_pmem_attribute_groups[] = {
static const struct attribute_group *e820_pmem_region_attribute_groups[] = {
&nd_region_attribute_group,
- &nd_device_attribute_group,
NULL,
};
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index ee5c04070ef91..2dcd8797e241d 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -234,6 +234,7 @@ int __init nd_label_init(void);
void nvdimm_exit(void);
void nd_region_exit(void);
struct nvdimm;
+extern const struct attribute_group nd_device_attribute_group;
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 97187d6c0bdb0..41348fa6b74c0 100644
--- a/drivers/nvdimm/of_pmem.c
+++ b/drivers/nvdimm/of_pmem.c
@@ -11,7 +11,6 @@
static const struct attribute_group *region_attr_groups[] = {
&nd_region_attribute_group,
- &nd_device_attribute_group,
NULL,
};
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index ca0080b749f37..4c87e77f230b9 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -763,19 +763,27 @@ struct attribute_group nd_region_attribute_group = {
};
EXPORT_SYMBOL_GPL(nd_region_attribute_group);
-static struct device_type nd_blk_device_type = {
+static const struct attribute_group *nd_region_attribute_groups[] = {
+ &nd_device_attribute_group,
+ NULL,
+};
+
+static const struct device_type nd_blk_device_type = {
.name = "nd_blk",
.release = nd_region_release,
+ .groups = nd_region_attribute_groups,
};
-static struct device_type nd_pmem_device_type = {
+static const struct device_type nd_pmem_device_type = {
.name = "nd_pmem",
.release = nd_region_release,
+ .groups = nd_region_attribute_groups,
};
-static struct device_type nd_volatile_device_type = {
+static const struct device_type nd_volatile_device_type = {
.name = "nd_volatile",
.release = nd_region_release,
+ .groups = nd_region_attribute_groups,
};
bool is_nd_pmem(struct device *dev)
@@ -931,8 +939,8 @@ void nd_region_release_lane(struct nd_region *nd_region, unsigned int lane)
EXPORT_SYMBOL(nd_region_release_lane);
static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
- struct nd_region_desc *ndr_desc, struct device_type *dev_type,
- const char *caller)
+ struct nd_region_desc *ndr_desc,
+ const struct device_type *dev_type, const char *caller)
{
struct nd_region *nd_region;
struct device *dev;
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index b6eddf9125685..d7dbf42498af2 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_device_attribute_group;
extern struct attribute_group nd_numa_attribute_group;
extern struct attribute_group nd_region_attribute_group;
extern struct attribute_group nd_mapping_attribute_group;
