changed Makefile and profiles, added patches for kernel 2.6.24
[openwrt.git] / target / linux / s3c24xx / patches-2.6.26 / 0233-device-model-Allow-the-creation-of-symlinks-on-sys.patch
1 From 2dc4f2819aec1cdd3012cb28396a625d2efb00fd Mon Sep 17 00:00:00 2001
2 From: Cesar Eduardo Barros <cesarb@cesarb.net>
3 Date: Mon, 4 Aug 2008 08:34:50 +0100
4 Subject: [PATCH] device model: Allow the creation of symlinks on /sys/bus/*/devices
5
6 Allows the direct creation of symlinks on /sys/bus/*/devices. This is needed
7 for a compat symlink from gta01-pm-gps.0 to neo1973-pm-gps.0 on the Openmoko
8 Neo1973 GTA01.
9
10 Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
11 ---
12  drivers/base/bus.c     |   23 +++++++++++++++++++++++
13  include/linux/device.h |    5 +++++
14  2 files changed, 28 insertions(+), 0 deletions(-)
15
16 diff --git a/drivers/base/bus.c b/drivers/base/bus.c
17 index ef522ae..96d495d 100644
18 --- a/drivers/base/bus.c
19 +++ b/drivers/base/bus.c
20 @@ -141,6 +141,29 @@ void bus_remove_file(struct bus_type *bus, struct bus_attribute *attr)
21  }
22  EXPORT_SYMBOL_GPL(bus_remove_file);
23  
24 +int bus_create_device_link(struct bus_type *bus, struct kobject *target,
25 +                          const char *name)
26 +{
27 +       int error;
28 +       if (bus_get(bus)) {
29 +               error = sysfs_create_link(&bus->p->devices_kset->kobj, target,
30 +                                         name);
31 +               bus_put(bus);
32 +       } else
33 +               error = -EINVAL;
34 +       return error;
35 +}
36 +EXPORT_SYMBOL_GPL(bus_create_device_link);
37 +
38 +void bus_remove_device_link(struct bus_type *bus, const char *name)
39 +{
40 +       if (bus_get(bus)) {
41 +               sysfs_remove_link(&bus->p->devices_kset->kobj, name);
42 +               bus_put(bus);
43 +       }
44 +}
45 +EXPORT_SYMBOL_GPL(bus_remove_device_link);
46 +
47  static struct kobj_type bus_ktype = {
48         .sysfs_ops      = &bus_sysfs_ops,
49  };
50 diff --git a/include/linux/device.h b/include/linux/device.h
51 index 6a2d04c..d29b005 100644
52 --- a/include/linux/device.h
53 +++ b/include/linux/device.h
54 @@ -51,6 +51,11 @@ extern int __must_check bus_create_file(struct bus_type *,
55                                         struct bus_attribute *);
56  extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
57  
58 +extern int __must_check bus_create_device_link(struct bus_type *bus,
59 +                                              struct kobject *target,
60 +                                              const char *name);
61 +extern void bus_remove_device_link(struct bus_type *bus, const char *name);
62 +
63  struct bus_type {
64         const char              *name;
65         struct bus_attribute    *bus_attrs;
66 -- 
67 1.5.6.3
68