CONFIG_NETDEV_NOTIFIER_ERROR_INJECT: Netdev notifier error injection module

General informations

The Linux kernel configuration item CONFIG_NETDEV_NOTIFIER_ERROR_INJECT:

• prompt: Netdev notifier error injection module
• type: tristate
• depends on: CONFIG_NET && CONFIG_NOTIFIER_ERROR_INJECTION
• defined in lib/Kconfig.debug
• found in Linux kernels: 4.5–4.20, 5.0–5.19, 6.0–6.12
• modules built: netdev-notifier-error-inject

Help text

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.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module netdev-notifier-error-inject CONFIG_NETDEV_NOTIFIER_ERROR_INJECT : lib/Kconfig.debug : "Netdev notifier error injection module" # in 4.5–4.20, 5.0–5.19, 6.0–6.12

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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