From c16517d26de30c90dabce1e456615fd7fbdce07c Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 23 Feb 2020 13:20:11 +0100 Subject: kernel: copy kernel 4.19 code to 5.4 No changes were done to the patches while coping them. Currently they do not apply on top of kernel 5.4. Signed-off-by: Hauke Mehrtens --- .../911-kobject_add_broadcast_uevent.patch | 76 ++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch (limited to 'target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch') diff --git a/target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch b/target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch new file mode 100644 index 0000000000..06b94117c1 --- /dev/null +++ b/target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch @@ -0,0 +1,76 @@ +From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau +Date: Sun, 16 Jul 2017 16:56:10 +0200 +Subject: lib: add uevent_next_seqnum() + +Signed-off-by: Felix Fietkau +--- + 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[]; +@@ -244,4 +246,7 @@ 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 +@@ -688,6 +688,43 @@ 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_broadcast(struct sock *usk, struct sk_buff *skb, + struct netlink_ext_ack *extack) + { -- cgit v1.2.3