diff options
Diffstat (limited to 'drivers/nvdimm/bus.c')
| -rw-r--r-- | drivers/nvdimm/bus.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index c3ba888e3e3a..2508251439e7 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -133,6 +133,32 @@ static int nvdimm_bus_remove(struct device *dev) return rc; } +void nd_device_notify(struct device *dev, enum nvdimm_event event) +{ + device_lock(dev); + if (dev->driver) { + struct nd_device_driver *nd_drv; + + nd_drv = to_nd_device_driver(dev->driver); + if (nd_drv->notify) + nd_drv->notify(dev, event); + } + device_unlock(dev); +} +EXPORT_SYMBOL(nd_device_notify); + +void nvdimm_region_notify(struct nd_region *nd_region, enum nvdimm_event event) +{ + struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(&nd_region->dev); + + if (!nvdimm_bus) + return; + + /* caller is responsible for holding a reference on the device */ + nd_device_notify(&nd_region->dev, event); +} +EXPORT_SYMBOL_GPL(nvdimm_region_notify); + static struct bus_type nvdimm_bus_type = { .name = "nd", .uevent = nvdimm_bus_uevent, |