driver core: add more help description for "path to uevent helper"

The kernel configuration UEVENT_HELPER_PATH is a string to
the uevent helper program. Add more description about how
to disable this feature and how to enable it again during
runtime.

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 52c67588368..fa64fa04fee 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -16,6 +16,11 @@ config UEVENT_HELPER_PATH
           that it creates a high system load, or on smaller systems
           it is known to create out-of-memory situations during bootup.
 
+          To disable user space helper program execution at early boot
+          time specify an empty string here. This setting can be altered
+          via /proc/sys/kernel/hotplug or via /sys/kernel/uevent_helper
+          later at runtime.
+
 config DEVTMPFS
         bool "Maintain a devtmpfs filesystem to mount at /dev"
         depends on HOTPLUG