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 <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Ira Weiny <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
---
drivers/acpi/nfit/core.c | 30 +++++++++++++++---------------
drivers/acpi/nfit/nfit.h | 24 ------------------------
2 files changed, 15 insertions(+), 39 deletions(-)
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index fe61f617a943..ae5f4acf2675 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -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[] = {
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 50882bdbeb96..6023ad61831a 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -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);
On Thu, Apr 21, 2022 at 08:33:34AM -0700, Dan Williams wrote:
> 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 <[email protected]>
> Cc: Dave Jiang <[email protected]>
> Cc: Ira Weiny <[email protected]>
> Signed-off-by: Dan Williams <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
> ---
> drivers/acpi/nfit/core.c | 30 +++++++++++++++---------------
> drivers/acpi/nfit/nfit.h | 24 ------------------------
> 2 files changed, 15 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index fe61f617a943..ae5f4acf2675 100644
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -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[] = {
> diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
> index 50882bdbeb96..6023ad61831a 100644
> --- a/drivers/acpi/nfit/nfit.h
> +++ b/drivers/acpi/nfit/nfit.h
> @@ -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);
>