diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 8c15b29d5adc..0d76ecce27bb 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1484,6 +1484,29 @@ config OF_RECONFIG_NOTIFIER_ERROR_INJECT If unsure, say N. +config NETDEV_NOTIFIER_ERROR_INJECT + tristate "Netdev notifier error injection module" + depends on NET && NOTIFIER_ERROR_INJECTION + help + This option provides the ability to inject artificial errors to + netdevice notifier chain callbacks. It is controlled through debugfs + interface /sys/kernel/debug/notifier-error-inject/netdev + + If the notifier call chain should be failed with some events + notified, write the error code to "actions/<notifier event>/error". + + Example: Inject netdevice mtu change error (-22 = -EINVAL) + + # cd /sys/kernel/debug/notifier-error-inject/netdev + # echo -22 > actions/NETDEV_CHANGEMTU/error + # ip link set eth0 mtu 1024 + RTNETLINK answers: Invalid argument + + To compile this code as a module, choose M here: the module will + be called netdev-notifier-error-inject. + + If unsure, say N. + config FAULT_INJECTION bool "Fault-injection framework" depends on DEBUG_KERNEL |