Bug 8096

Summary: mdev : CONFIG_HOTPLUG and /proc/sys/kernel/hotplug don't exist anymore ?
Product: Busybox Reporter: linuxcbon
Component: OtherAssignee: 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.