target/linux/generic/patches-2.6.31/219-kobject_uevent.patch

   1 --- a/lib/kobject_uevent.c
   2 +++ b/lib/kobject_uevent.c
   3 @@ -29,7 +29,8 @@ u64 uevent_seqnum;
   4  char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
   5  static DEFINE_SPINLOCK(sequence_lock);
   6  #if defined(CONFIG_NET)
   7 -static struct sock *uevent_sock;
   8 +struct sock *uevent_sock = NULL;
   9 +EXPORT_SYMBOL_GPL(uevent_sock);
  10  #endif
  11
  12  /* the strings here must match the enum in include/linux/kobject.h */
  13 @@ -42,6 +43,18 @@ static const char *kobject_actions[] = {
  14         [KOBJ_OFFLINE] =        "offline",
  15  };
  16
  17 +u64 uevent_next_seqnum(void)
  18 +{
  19 +       u64 seq;
  20 +
  21 +       spin_lock(&sequence_lock);
  22 +       seq = ++uevent_seqnum;
  23 +       spin_unlock(&sequence_lock);
  24 +
  25 +       return seq;
  26 +}
  27 +EXPORT_SYMBOL_GPL(uevent_next_seqnum);
  28 +
  29  /**
  30   * kobject_action_type - translate action string to numeric type
  31   *
  32 @@ -201,9 +214,7 @@ int kobject_uevent_env(struct kobject *k
  33                 kobj->state_remove_uevent_sent = 1;
  34
  35         /* we will send an event, so request a new sequence number */
  36 -       spin_lock(&sequence_lock);
  37 -       seq = ++uevent_seqnum;
  38 -       spin_unlock(&sequence_lock);
  39 +       seq = uevent_next_seqnum();
  40         retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq);
  41         if (retval)
  42                 goto exit;