[RFC PATCH 10/12] export bus_get() / bus_put()
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: 2021-02-08 22:27:22
Also in:
linux-devicetree, lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
--- drivers/base/bus.c | 6 ++++-- include/linux/device/bus.h | 3 +++ 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index a06ae2786092..2ef92a3c5d7b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c@@ -39,7 +39,7 @@ static struct kset *system_kset; static int __must_check bus_rescan_devices_helper(struct device *dev, void *data); -static struct bus_type *bus_get(struct bus_type *bus) +struct bus_type *bus_get(struct bus_type *bus) { if (bus) { kset_get(&bus->p->subsys);
@@ -47,12 +47,14 @@ static struct bus_type *bus_get(struct bus_type *bus) } return NULL; } +EXPORT_SYMBOL_GPL(bus_get); -static void bus_put(struct bus_type *bus) +void bus_put(struct bus_type *bus) { if (bus) kset_put(&bus->p->subsys); } +EXPORT_SYMBOL_GPL(bus_put); static ssize_t drv_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index b4cbcfe176c5..8d6b45df0a82 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h@@ -120,6 +120,9 @@ extern void bus_unregister(struct bus_type *bus); extern int __must_check bus_rescan_devices(struct bus_type *bus); +struct bus_type *bus_get(struct bus_type *bus); +void bus_put(struct bus_type *bus); + struct bus_attribute { struct attribute attr; ssize_t (*show)(struct bus_type *bus, char *buf);
--
2.11.0