CONFIG_SYSFS_DEPRECATED - bus symlinks

Turn off the bus symlinks if CONFIG_SYSFS_DEPRECATED is enabled

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 17 insertions, 3 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index ed3e8a2be64a..472810f8e6e7 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -355,6 +355,21 @@ static void device_remove_attrs(struct bus_type * bus, struct device * dev)
         }
 }
 
+#ifdef CONFIG_SYSFS_DEPRECATED
+static int make_deprecated_bus_links(struct device *dev)
+{
+        return sysfs_create_link(&dev->kobj,
+                                 &dev->bus->subsys.kset.kobj, "bus");
+}
+
+static void remove_deprecated_bus_links(struct device *dev)
+{
+        sysfs_remove_link(&dev->kobj, "bus");
+}
+#else
+static inline int make_deprecated_bus_links(struct device *dev) { return 0; }
+static inline void remove_deprecated_bus_links(struct device *dev) { }
+#endif
 
 /**
  *      bus_add_device - add device to bus
@@ -381,8 +396,7 @@ int bus_add_device(struct device * dev)
                                 &dev->bus->subsys.kset.kobj, "subsystem");
                 if (error)
                         goto out_subsys;
-                error = sysfs_create_link(&dev->kobj,
-                                &dev->bus->subsys.kset.kobj, "bus");
+                error = make_deprecated_bus_links(dev);
                 if (error)
                         goto out_deprecated;
         }
@@ -436,7 +450,7 @@ void bus_remove_device(struct device * dev)
 {
         if (dev->bus) {
                 sysfs_remove_link(&dev->kobj, "subsystem");
-                sysfs_remove_link(&dev->kobj, "bus");
+                remove_deprecated_bus_links(dev);
                 sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
                 device_remove_attrs(dev->bus, dev);
                 if (dev->is_registered) {