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| author | Michael Marineau <mike@marineau.org> | 2014-04-10 14:09:31 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-25 12:00:49 -0700 |
| commit | 86d56134f1b67d0c18025ba5cade95c048ed528d (patch) | |
| tree | caa4346965954ded259784e3b68af159e3161aeb /lib/kobject_uevent.c | |
| parent | d911d98748018f7c8facc035ba39c30f5cce6f9c (diff) | |
| download | lwn-86d56134f1b67d0c18025ba5cade95c048ed528d.tar.gz lwn-86d56134f1b67d0c18025ba5cade95c048ed528d.zip | |
kobject: Make support for uevent_helper optional.
Support for uevent_helper, aka hotplug, is not required on many systems
these days but it can still be enabled via sysfs or sysctl.
Reported-by: Darren Shepherd <darren.s.shepherd@gmail.com>
Signed-off-by: Michael Marineau <mike@marineau.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/kobject_uevent.c')
| -rw-r--r-- | lib/kobject_uevent.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 4e3bd71bd949..9ebf9e20de53 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -29,7 +29,9 @@ u64 uevent_seqnum; +#ifdef CONFIG_UEVENT_HELPER char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH; +#endif #ifdef CONFIG_NET struct uevent_sock { struct list_head list; @@ -109,6 +111,7 @@ static int kobj_bcast_filter(struct sock *dsk, struct sk_buff *skb, void *data) } #endif +#ifdef CONFIG_UEVENT_HELPER static int kobj_usermode_filter(struct kobject *kobj) { const struct kobj_ns_type_operations *ops; @@ -147,6 +150,7 @@ static void cleanup_uevent_env(struct subprocess_info *info) { kfree(info->data); } +#endif /** * kobject_uevent_env - send an uevent with environmental data @@ -323,6 +327,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, #endif mutex_unlock(&uevent_sock_mutex); +#ifdef CONFIG_UEVENT_HELPER /* call uevent_helper, usually only enabled during early boot */ if (uevent_helper[0] && !kobj_usermode_filter(kobj)) { struct subprocess_info *info; @@ -347,6 +352,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, env = NULL; /* freed by cleanup_uevent_env */ } } +#endif exit: kfree(devpath); |