/branches/18.06.1/target/linux/generic/hack-4.14/911-kobject_add_broadcast_uevent.patch |
@@ -0,0 +1,76 @@ |
From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001 |
From: Felix Fietkau <nbd@nbd.name> |
Date: Sun, 16 Jul 2017 16:56:10 +0200 |
Subject: lib: add uevent_next_seqnum() |
|
Signed-off-by: Felix Fietkau <nbd@nbd.name> |
--- |
include/linux/kobject.h | 5 +++++ |
lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++ |
2 files changed, 42 insertions(+) |
|
--- a/include/linux/kobject.h |
+++ b/include/linux/kobject.h |
@@ -32,6 +32,8 @@ |
#define UEVENT_NUM_ENVP 32 /* number of env pointers */ |
#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */ |
|
+struct sk_buff; |
+ |
#ifdef CONFIG_UEVENT_HELPER |
/* path to the userspace helper executed on an event */ |
extern char uevent_helper[]; |
@@ -241,4 +243,7 @@ int kobject_synth_uevent(struct kobject |
__printf(2, 3) |
int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...); |
|
+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group, |
+ gfp_t allocation); |
+ |
#endif /* _KOBJECT_H_ */ |
--- a/lib/kobject_uevent.c |
+++ b/lib/kobject_uevent.c |
@@ -599,6 +599,43 @@ int add_uevent_var(struct kobj_uevent_en |
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; |