return rc;
/* In case PCI is scanned before ACPI re-trigger memdev attach */
- return cxl_bus_rescan();
+ cxl_bus_rescan();
+ return 0;
}
static const struct acpi_device_id cxl_acpi_ids[] = {
.id_table = cxl_test_ids,
};
-module_platform_driver(cxl_acpi_driver);
+static int __init cxl_acpi_init(void)
+{
+ return platform_driver_register(&cxl_acpi_driver);
+}
+
+static void __exit cxl_acpi_exit(void)
+{
+ platform_driver_unregister(&cxl_acpi_driver);
+ cxl_bus_drain();
+}
+
+module_init(cxl_acpi_init);
+module_exit(cxl_acpi_exit);
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS(CXL);
MODULE_IMPORT_NS(ACPI);
static struct workqueue_struct *cxl_bus_wq;
-int cxl_bus_rescan(void)
+static void cxl_bus_rescan_queue(struct work_struct *w)
{
- return bus_rescan_devices(&cxl_bus_type);
+ int rc = bus_rescan_devices(&cxl_bus_type);
+
+ pr_debug("CXL bus rescan result: %d\n", rc);
+}
+
+void cxl_bus_rescan(void)
+{
+ static DECLARE_WORK(rescan_work, cxl_bus_rescan_queue);
+
+ queue_work(cxl_bus_wq, &rescan_work);
}
EXPORT_SYMBOL_NS_GPL(cxl_bus_rescan, CXL);
+void cxl_bus_drain(void)
+{
+ drain_workqueue(cxl_bus_wq);
+}
+EXPORT_SYMBOL_NS_GPL(cxl_bus_drain, CXL);
+
bool schedule_cxl_memdev_detach(struct cxl_memdev *cxlmd)
{
return queue_work(cxl_bus_wq, &cxlmd->detach_work);
struct cxl_dport *parent_dport);
struct cxl_port *find_cxl_root(struct device *dev);
int devm_cxl_enumerate_ports(struct cxl_memdev *cxlmd);
-int cxl_bus_rescan(void);
+void cxl_bus_rescan(void);
+void cxl_bus_drain(void);
struct cxl_port *cxl_mem_find_port(struct cxl_memdev *cxlmd,
struct cxl_dport **dport);
bool schedule_cxl_memdev_detach(struct cxl_memdev *cxlmd);