target/linux/generic/patches-3.3/911-kobject_add_broadcast_uevent.patch

   1 --- a/include/linux/kobject.h
   2 +++ b/include/linux/kobject.h
   3 @@ -31,6 +31,8 @@
   4  #define UEVENT_NUM_ENVP                        32      /* number of env pointers */
   5  #define UEVENT_BUFFER_SIZE             2048    /* buffer for the variables */
   6
   7 +struct sk_buff;
   8 +
   9  /* path to the userspace helper executed on an event */
  10  extern char uevent_helper[];
  11
  12 @@ -213,6 +215,10 @@ int add_uevent_var(struct kobj_uevent_en
  13
  14  int kobject_action_type(const char *buf, size_t count,
  15                         enum kobject_action *type);
  16 +
  17 +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
  18 +                    gfp_t allocation);
  19 +
  20  #else
  21  static inline int kobject_uevent(struct kobject *kobj,
  22                                  enum kobject_action action)
  23 @@ -229,6 +235,16 @@ int add_uevent_var(struct kobj_uevent_en
  24  static inline int kobject_action_type(const char *buf, size_t count,
  25                                       enum kobject_action *type)
  26  { return -EINVAL; }
  27 +
  28 +void kfree_skb(struct sk_buff *);
  29 +
  30 +static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
  31 +                                  gfp_t allocation)
  32 +{
  33 +       kfree_skb(skb);
  34 +       return 0;
  35 +}
  36 +
  37  #endif
  38
  39  #endif /* _KOBJECT_H_ */
  40 --- a/lib/kobject_uevent.c
  41 +++ b/lib/kobject_uevent.c
  42 @@ -380,6 +380,43 @@ int add_uevent_var(struct kobj_uevent_en
  43  EXPORT_SYMBOL_GPL(add_uevent_var);
  44
  45  #if defined(CONFIG_NET)
  46 +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
  47 +                    gfp_t allocation)
  48 +{
  49 +       struct uevent_sock *ue_sk;
  50 +       int err = 0;
  51 +
  52 +       /* send netlink message */
  53 +       mutex_lock(&uevent_sock_mutex);
  54 +       list_for_each_entry(ue_sk, &uevent_sock_list, list) {
  55 +               struct sock *uevent_sock = ue_sk->sk;
  56 +               struct sk_buff *skb2;
  57 +
  58 +               skb2 = skb_clone(skb, allocation);
  59 +               if (!skb2)
  60 +                       break;
  61 +
  62 +               err = netlink_broadcast(uevent_sock, skb2, pid, group,
  63 +                                       allocation);
  64 +               if (err)
  65 +                       break;
  66 +       }
  67 +       mutex_unlock(&uevent_sock_mutex);
  68 +
  69 +       kfree_skb(skb);
  70 +       return err;
  71 +}
  72 +#else
  73 +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
  74 +                    gfp_t allocation)
  75 +{
  76 +       kfree_skb(skb);
  77 +       return 0;
  78 +}
  79 +#endif
  80 +EXPORT_SYMBOL_GPL(broadcast_uevent);
  81 +
  82 +#if defined(CONFIG_NET)
  83  static int uevent_net_init(struct net *net)
  84  {
  85         struct uevent_sock *ue_sk;