diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2016-08-22 19:23:25 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-09-01 18:20:14 -0700 |
| commit | 231bf117aada289023fd6f3377461ce80792e273 (patch) | |
| tree | 41d82c8a0789c714a97391f8186a86724605d13c /drivers/acpi/nfit/core.c | |
| parent | ba9c8dd3c22275e46feef429f343b85e9cf3924c (diff) | |
tools/testing/nvdimm: unit test for acpi_nvdimm_notify()
Trigger an nmemX/nfit/flags attribute to fire an event whenever a
smart-threshold DSM is received.
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi/nfit/core.c')
| -rw-r--r-- | drivers/acpi/nfit/core.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 4af1db1cb599..ceb6671ab355 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1248,7 +1248,7 @@ static struct nvdimm *acpi_nfit_dimm_by_handle(struct acpi_nfit_desc *acpi_desc, return NULL; } -static void __acpi_nvdimm_notify(struct device *dev, u32 event) +void __acpi_nvdimm_notify(struct device *dev, u32 event) { struct nfit_mem *nfit_mem; struct acpi_nfit_desc *acpi_desc; @@ -1274,6 +1274,7 @@ static void __acpi_nvdimm_notify(struct device *dev, u32 event) if (nfit_mem && nfit_mem->flags_attr) sysfs_notify_dirent(nfit_mem->flags_attr); } +EXPORT_SYMBOL_GPL(__acpi_nvdimm_notify); static void acpi_nvdimm_notify(acpi_handle handle, u32 event, void *data) { @@ -1365,12 +1366,15 @@ static void shutdown_dimm_notify(void *data) * notifications. */ list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) { + struct acpi_device *adev_dimm = nfit_mem->adev; + if (nfit_mem->flags_attr) { sysfs_put(nfit_mem->flags_attr); nfit_mem->flags_attr = NULL; } - acpi_remove_notify_handler(nfit_mem->adev->handle, - ACPI_DEVICE_NOTIFY, acpi_nvdimm_notify); + if (adev_dimm) + acpi_remove_notify_handler(adev_dimm->handle, + ACPI_DEVICE_NOTIFY, acpi_nvdimm_notify); } mutex_unlock(&acpi_desc->init_mutex); } |