Hi Greg,

Greg KH wrote:
>> #if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
>>+u64 uevent_seqnum;
>>+char uevent_helper[UEVENT_HELPER_PATH_LEN] = "/sbin/hotplug";
> 
> No, the seqnum and helper can be called even if we have not defined
> CONFIG_NET.  Please redo the patch based on this.

OK, thanks for the comment.
I thought it could be conditional on CONFIG_NET because
it's used only from kobject_uevent() except for
kernel/ksysfs.c which just exports them to sysfs.
Are there other users? Or do you mean we have to keep
sysfs files for user space?

Attached patch makes them conditional on CONFIG_HOTPLUG only.
Build tested with both (!CONFIG_NET && CONFIG_SYSFS) and
(CONFIG_NET && !CONFIG_SYSFS).
Does this look correct?

Thanks,
-- 
Jun'ichi Nomura, NEC Solutions (America), Inc.