--- zzzz-none-000/linux-4.4.60/lib/kobject_uevent.c 2017-04-08 07:53:53.000000000 +0000 +++ wasp-540e-714/linux-4.4.60/lib/kobject_uevent.c 2019-07-03 09:21:34.000000000 +0000 @@ -52,6 +52,18 @@ [KOBJ_OFFLINE] = "offline", }; +u64 uevent_next_seqnum(void) +{ + u64 seq; + + mutex_lock(&uevent_sock_mutex); + seq = ++uevent_seqnum; + mutex_unlock(&uevent_sock_mutex); + + return seq; +} +EXPORT_SYMBOL_GPL(uevent_next_seqnum); + /** * kobject_action_type - translate action string to numeric type * @@ -411,6 +423,43 @@ EXPORT_SYMBOL_GPL(add_uevent_var); #if defined(CONFIG_NET) +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation) +{ + struct uevent_sock *ue_sk; + int err = 0; + + /* send netlink message */ + mutex_lock(&uevent_sock_mutex); + list_for_each_entry(ue_sk, &uevent_sock_list, list) { + struct sock *uevent_sock = ue_sk->sk; + struct sk_buff *skb2; + + skb2 = skb_clone(skb, allocation); + if (!skb2) + break; + + err = netlink_broadcast(uevent_sock, skb2, pid, group, + allocation); + if (err) + break; + } + mutex_unlock(&uevent_sock_mutex); + + kfree_skb(skb); + return err; +} +#else +int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, + gfp_t allocation) +{ + kfree_skb(skb); + return 0; +} +#endif +EXPORT_SYMBOL_GPL(broadcast_uevent); + +#if defined(CONFIG_NET) static int uevent_net_init(struct net *net) { struct uevent_sock *ue_sk;