diff options
Diffstat (limited to 'drivers/cxl/core/memdev.c')
| -rw-r--r-- | drivers/cxl/core/memdev.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c index b2773664e407..1f76b28f9826 100644 --- a/drivers/cxl/core/memdev.c +++ b/drivers/cxl/core/memdev.c @@ -162,6 +162,12 @@ static const struct device_type cxl_memdev_type = { .groups = cxl_memdev_attribute_groups, }; +bool is_cxl_memdev(struct device *dev) +{ + return dev->type == &cxl_memdev_type; +} +EXPORT_SYMBOL_NS_GPL(is_cxl_memdev, CXL); + /** * set_exclusive_cxl_commands() - atomically disable user cxl commands * @cxlds: The device state to operate on @@ -213,6 +219,15 @@ static void cxl_memdev_unregister(void *_cxlmd) put_device(dev); } +static void detach_memdev(struct work_struct *work) +{ + struct cxl_memdev *cxlmd; + + cxlmd = container_of(work, typeof(*cxlmd), detach_work); + device_release_driver(&cxlmd->dev); + put_device(&cxlmd->dev); +} + static struct cxl_memdev *cxl_memdev_alloc(struct cxl_dev_state *cxlds, const struct file_operations *fops) { @@ -237,6 +252,7 @@ static struct cxl_memdev *cxl_memdev_alloc(struct cxl_dev_state *cxlds, dev->devt = MKDEV(cxl_mem_major, cxlmd->id); dev->type = &cxl_memdev_type; device_set_pm_not_required(dev); + INIT_WORK(&cxlmd->detach_work, detach_memdev); cdev = &cxlmd->cdev; cdev_init(cdev, fops); |