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Subject[PATCH 24/36] driver core: bus: constantify bus_register()
Date
bus_register() is now safe to take a constant * to bus_type, so make
that change and mark the subsys_private bus_type * constant as well.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/base.h | 2 +-
drivers/base/bus.c | 2 +-
include/linux/device/bus.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/base/base.h b/drivers/base/base.h
index f1034e27e651..09c6682d16b5 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -49,7 +49,7 @@ struct subsys_private {
struct klist klist_drivers;
struct blocking_notifier_head bus_notifier;
unsigned int drivers_autoprobe:1;
- struct bus_type *bus;
+ const struct bus_type *bus;
struct device *dev_root;

struct kset glue_dirs;
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 819ab745fa9f..f739a2a79e59 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -841,7 +841,7 @@ static struct bus_attribute bus_attr_uevent = __ATTR(uevent, 0200, NULL,
* infrastructure, then register the children subsystems it has:
* the devices and drivers that belong to the subsystem.
*/
-int bus_register(struct bus_type *bus)
+int bus_register(const struct bus_type *bus)
{
int retval;
struct subsys_private *priv;
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 78c875386c06..c30c4748c170 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -110,7 +110,7 @@ struct bus_type {
bool need_parent_lock;
};

-extern int __must_check bus_register(struct bus_type *bus);
+extern int __must_check bus_register(const struct bus_type *bus);

extern void bus_unregister(const struct bus_type *bus);

--
2.39.2
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