target/linux/generic/hack-4.9/910-kobject_uevent.patch

   1 From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001
   2 From: Felix Fietkau <nbd@nbd.name>
   3 Date: Sun, 16 Jul 2017 16:56:10 +0200
   4 Subject: lib: add uevent_next_seqnum()
   5
   6 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   7 ---
   8  include/linux/kobject.h |  5 +++++
   9  lib/kobject_uevent.c    | 37 +++++++++++++++++++++++++++++++++++++
  10  2 files changed, 42 insertions(+)
  11
  12 --- a/lib/kobject_uevent.c
  13 +++ b/lib/kobject_uevent.c
  14 @@ -52,6 +52,18 @@ static const char *kobject_actions[] = {
  15         [KOBJ_OFFLINE] =        "offline",
  16  };
  17
  18 +u64 uevent_next_seqnum(void)
  19 +{
  20 +       u64 seq;
  21 +
  22 +       mutex_lock(&uevent_sock_mutex);
  23 +       seq = ++uevent_seqnum;
  24 +       mutex_unlock(&uevent_sock_mutex);
  25 +
  26 +       return seq;
  27 +}
  28 +EXPORT_SYMBOL_GPL(uevent_next_seqnum);
  29 +
  30  /**
  31   * kobject_action_type - translate action string to numeric type
  32   *