Bug 8096

Summary:	mdev : CONFIG_HOTPLUG and /proc/sys/kernel/hotplug don't exist anymore ?
Product:	Busybox	Reporter:	linuxcbon
Component:	Other	Assignee:	unassigned
Status:	NEW ---
Severity:	normal	CC:	busybox-cvs
Priority:	P5
Version:	1.21.x
Target Milestone:	---
Hardware:	PC
OS:	Linux
Host:		Target:
Build:

Description linuxcbon 2015-05-08 04:37:01 UTC

linux 3.19.2

/proc/sys/kernel/hotplug doesn't exist anymore ?

sh-4.2# echo /sbin/mdev > /proc/sys/kernel/hotplug
sh: /proc/sys/kernel/hotplug: No such file or directory

sh-4.2# sysctl -w kernel.hotplug=/sbin/mdev
error: "kernel.hotplug" is an unknown key

does it have to do with this ?

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=40b313608ad4ea655addd2ec6cdd106477ae8e15
Finally eradicate CONFIG_HOTPLUG
Ever since commit 45f035ab9b8f ("CONFIG_HOTPLUG should be always on"),
 it has been basically impossible to build a kernel with
CONFIG_HOTPLUG turned off.
 Remove all the remaining references to it.