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ACPI: NFIT: Drop nfit_device_lock() 

The nfit_device_lock() helper was added to provide lockdep coverage for
the NFIT driver's usage of device_lock() on the nvdimm_bus object. Now
that nvdimm_bus objects have their own lock class this wrapper can be
dropped.

Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/165055521409.3745911.8085645201146909612.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2022-04-21 08:33:34 -07:00
parent 4a0079bc7a
commit 1550a17a7d
2 changed files with 15 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/acpi/nfit/core.c
View File

@ -1230,7 +1230,7 @@ static ssize_t hw_error_scrub_store(struct device *dev,
if (rc)
return rc;
nfit_device_lock(dev);
device_lock(dev);
nd_desc = dev_get_drvdata(dev);
if (nd_desc) {
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
@ -1247,7 +1247,7 @@ static ssize_t hw_error_scrub_store(struct device *dev,
break;
}
}
nfit_device_unlock(dev);
device_unlock(dev);
if (rc)
return rc;
return size;
@ -1267,10 +1267,10 @@ static ssize_t scrub_show(struct device *dev,
ssize_t rc = -ENXIO;
bool busy;
nfit_device_lock(dev);
device_lock(dev);
nd_desc = dev_get_drvdata(dev);
if (!nd_desc) {
nfit_device_unlock(dev);
device_unlock(dev);
return rc;
}
acpi_desc = to_acpi_desc(nd_desc);
@ -1287,7 +1287,7 @@ static ssize_t scrub_show(struct device *dev,
}
mutex_unlock(&acpi_desc->init_mutex);
nfit_device_unlock(dev);
device_unlock(dev);
return rc;
}
@ -1304,14 +1304,14 @@ static ssize_t scrub_store(struct device *dev,
if (val != 1)
return -EINVAL;
nfit_device_lock(dev);
device_lock(dev);
nd_desc = dev_get_drvdata(dev);
if (nd_desc) {
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
rc = acpi_nfit_ars_rescan(acpi_desc, ARS_REQ_LONG);
}
nfit_device_unlock(dev);
device_unlock(dev);
if (rc)
return rc;
return size;
@ -1697,9 +1697,9 @@ static void acpi_nvdimm_notify(acpi_handle handle, u32 event, void *data)
struct acpi_device *adev = data;
struct device *dev = &adev->dev;
nfit_device_lock(dev->parent);
device_lock(dev->parent);
__acpi_nvdimm_notify(dev, event);
nfit_device_unlock(dev->parent);
device_unlock(dev->parent);
}
static bool acpi_nvdimm_has_method(struct acpi_device *adev, char *method)
@ -3152,8 +3152,8 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
struct device *dev = acpi_desc->dev;
/* Bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */
nfit_device_lock(dev);
nfit_device_unlock(dev);
device_lock(dev);
device_unlock(dev);
/* Bounce the init_mutex to complete initial registration */
mutex_lock(&acpi_desc->init_mutex);
@ -3305,8 +3305,8 @@ void acpi_nfit_shutdown(void *data)
* acpi_nfit_ars_rescan() submissions have had a chance to
* either submit or see ->cancel set.
*/
nfit_device_lock(bus_dev);
nfit_device_unlock(bus_dev);
device_lock(bus_dev);
device_unlock(bus_dev);
flush_workqueue(nfit_wq);
}
@ -3449,9 +3449,9 @@ EXPORT_SYMBOL_GPL(__acpi_nfit_notify);
static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
{
nfit_device_lock(&adev->dev);
device_lock(&adev->dev);
__acpi_nfit_notify(&adev->dev, adev->handle, event);
nfit_device_unlock(&adev->dev);
device_unlock(&adev->dev);
}
static const struct acpi_device_id acpi_nfit_ids[] = {

24
drivers/acpi/nfit/nfit.h
View File

@ -337,30 +337,6 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
return container_of(nd_desc, struct acpi_nfit_desc, nd_desc);
}
#ifdef CONFIG_PROVE_LOCKING
static inline void nfit_device_lock(struct device *dev)
{
device_lock(dev);
mutex_lock(&dev->lockdep_mutex);
}
static inline void nfit_device_unlock(struct device *dev)
{
mutex_unlock(&dev->lockdep_mutex);
device_unlock(dev);
}
#else
static inline void nfit_device_lock(struct device *dev)
{
device_lock(dev);
}
static inline void nfit_device_unlock(struct device *dev)
{
device_unlock(dev);
}
#endif
const guid_t *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz);
void acpi_nfit_shutdown(void *data);