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Date: Tue, 23 Feb 2016 18:17:19 -0800
From: Dan Williams <dan.j.williams@...el.com>
To: linux-nvdimm@...ts.01.org
Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/8] nfit,
tools/testing/nvdimm: unify common init for acpi_nfit_desc
The nvdimm unit test infrastructure performs its own initialization of
an acpi_nfit_desc to specify test overrides over the native
implementation. Make it clear which attributes and operations it is
overriding by re-using acpi_nfit_init_desc() as a common starting point.
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
drivers/acpi/nfit.c | 44 ++++++++++++++------------------------
drivers/acpi/nfit.h | 2 +-
tools/testing/nvdimm/test/nfit.c | 22 +++----------------
3 files changed, 20 insertions(+), 48 deletions(-)
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 4dd2b6808df5..76c9444c9c60 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -748,12 +748,11 @@ static struct attribute_group acpi_nfit_attribute_group = {
.attrs = acpi_nfit_attributes,
};
-const struct attribute_group *acpi_nfit_attribute_groups[] = {
+static const struct attribute_group *acpi_nfit_attribute_groups[] = {
&nvdimm_bus_attribute_group,
&acpi_nfit_attribute_group,
NULL,
};
-EXPORT_SYMBOL_GPL(acpi_nfit_attribute_groups);
static struct acpi_nfit_memory_map *to_nfit_memdev(struct device *dev)
{
@@ -1962,15 +1961,9 @@ int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, acpi_size sz)
}
EXPORT_SYMBOL_GPL(acpi_nfit_init);
-static struct acpi_nfit_desc *acpi_nfit_desc_init(struct acpi_device *adev)
+void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev)
{
struct nvdimm_bus_descriptor *nd_desc;
- struct acpi_nfit_desc *acpi_desc;
- struct device *dev = &adev->dev;
-
- acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
- if (!acpi_desc)
- return ERR_PTR(-ENOMEM);
dev_set_drvdata(dev, acpi_desc);
acpi_desc->dev = dev;
@@ -1980,12 +1973,6 @@ static struct acpi_nfit_desc *acpi_nfit_desc_init(struct acpi_device *adev)
nd_desc->ndctl = acpi_nfit_ctl;
nd_desc->attr_groups = acpi_nfit_attribute_groups;
- acpi_desc->nvdimm_bus = nvdimm_bus_register(dev, nd_desc);
- if (!acpi_desc->nvdimm_bus) {
- devm_kfree(dev, acpi_desc);
- return ERR_PTR(-ENXIO);
- }
-
INIT_LIST_HEAD(&acpi_desc->spa_maps);
INIT_LIST_HEAD(&acpi_desc->spas);
INIT_LIST_HEAD(&acpi_desc->dcrs);
@@ -1996,9 +1983,8 @@ static struct acpi_nfit_desc *acpi_nfit_desc_init(struct acpi_device *adev)
INIT_LIST_HEAD(&acpi_desc->dimms);
mutex_init(&acpi_desc->spa_map_mutex);
mutex_init(&acpi_desc->init_mutex);
-
- return acpi_desc;
}
+EXPORT_SYMBOL_GPL(acpi_nfit_desc_init);
static int acpi_nfit_add(struct acpi_device *adev)
{
@@ -2017,12 +2003,13 @@ static int acpi_nfit_add(struct acpi_device *adev)
return 0;
}
- acpi_desc = acpi_nfit_desc_init(adev);
- if (IS_ERR(acpi_desc)) {
- dev_err(dev, "%s: error initializing acpi_desc: %ld\n",
- __func__, PTR_ERR(acpi_desc));
- return PTR_ERR(acpi_desc);
- }
+ acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
+ if (!acpi_desc)
+ return -ENOMEM;
+ acpi_nfit_desc_init(acpi_desc, &adev->dev);
+ acpi_desc->nvdimm_bus = nvdimm_bus_register(dev, &acpi_desc->nd_desc);
+ if (!acpi_desc->nvdimm_bus)
+ return -ENOMEM;
/*
* Save the acpi header for later and then skip it,
@@ -2085,12 +2072,13 @@ static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
}
if (!acpi_desc) {
- acpi_desc = acpi_nfit_desc_init(adev);
- if (IS_ERR(acpi_desc)) {
- dev_err(dev, "%s: error initializing acpi_desc: %ld\n",
- __func__, PTR_ERR(acpi_desc));
+ acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
+ if (!acpi_desc)
+ goto out_unlock;
+ acpi_nfit_desc_init(acpi_desc, &adev->dev);
+ acpi_desc->nvdimm_bus = nvdimm_bus_register(dev, &acpi_desc->nd_desc);
+ if (!acpi_desc->nvdimm_bus)
goto out_unlock;
- }
}
/* Evaluate _FIT */
diff --git a/drivers/acpi/nfit.h b/drivers/acpi/nfit.h
index f45b7d9b1d9e..524dec0a3adb 100644
--- a/drivers/acpi/nfit.h
+++ b/drivers/acpi/nfit.h
@@ -195,5 +195,5 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
const u8 *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *nfit, acpi_size sz);
-extern const struct attribute_group *acpi_nfit_attribute_groups[];
+void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev);
#endif /* __NFIT_H__ */
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 9ead77970546..a66842e61bbc 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -499,7 +499,6 @@ static int nfit_test1_alloc(struct nfit_test *t)
static void nfit_test0_setup(struct nfit_test *t)
{
- struct nvdimm_bus_descriptor *nd_desc;
struct acpi_nfit_desc *acpi_desc;
struct acpi_nfit_memory_map *memdev;
void *nfit_buf = t->nfit_buf;
@@ -1165,8 +1164,6 @@ static void nfit_test0_setup(struct nfit_test *t)
set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_START, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_dsm_force_en);
- nd_desc = &acpi_desc->nd_desc;
- nd_desc->ndctl = nfit_test_ctl;
}
static void nfit_test1_setup(struct nfit_test *t)
@@ -1176,7 +1173,6 @@ static void nfit_test1_setup(struct nfit_test *t)
struct acpi_nfit_memory_map *memdev;
struct acpi_nfit_control_region *dcr;
struct acpi_nfit_system_address *spa;
- struct nvdimm_bus_descriptor *nd_desc;
struct acpi_nfit_desc *acpi_desc;
offset = 0;
@@ -1226,8 +1222,6 @@ static void nfit_test1_setup(struct nfit_test *t)
set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_START, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_dsm_force_en);
- nd_desc = &acpi_desc->nd_desc;
- nd_desc->ndctl = nfit_test_ctl;
}
static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa,
@@ -1310,26 +1304,16 @@ static int nfit_test_probe(struct platform_device *pdev)
nfit_test->setup(nfit_test);
acpi_desc = &nfit_test->acpi_desc;
- acpi_desc->dev = &pdev->dev;
+ acpi_nfit_desc_init(acpi_desc, &pdev->dev);
acpi_desc->nfit = nfit_test->nfit_buf;
acpi_desc->blk_do_io = nfit_test_blk_do_io;
nd_desc = &acpi_desc->nd_desc;
- nd_desc->attr_groups = acpi_nfit_attribute_groups;
+ nd_desc->provider_name = NULL;
+ nd_desc->ndctl = nfit_test_ctl;
acpi_desc->nvdimm_bus = nvdimm_bus_register(&pdev->dev, nd_desc);
if (!acpi_desc->nvdimm_bus)
return -ENXIO;
- INIT_LIST_HEAD(&acpi_desc->spa_maps);
- INIT_LIST_HEAD(&acpi_desc->spas);
- INIT_LIST_HEAD(&acpi_desc->dcrs);
- INIT_LIST_HEAD(&acpi_desc->bdws);
- INIT_LIST_HEAD(&acpi_desc->idts);
- INIT_LIST_HEAD(&acpi_desc->flushes);
- INIT_LIST_HEAD(&acpi_desc->memdevs);
- INIT_LIST_HEAD(&acpi_desc->dimms);
- mutex_init(&acpi_desc->spa_map_mutex);
- mutex_init(&acpi_desc->init_mutex);
-
rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size);
if (rc) {
nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
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