CONFIG_ETRAX_NETWORK_LED_ON_WHEN_LINK is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_NETWORK_LED_ON_WHEN_LINK.
Result is shown for kernelversion 6.7-rc3



Network LED behavior
In linux kernel since version 2.6.12  
Selecting LED_on_when_link will light the LED when there is a
connection and will flash off when there is activity.

Selecting LED_on_when_activity will light the LED only when
there is activity.

This setting will also affect the behaviour of other activity LEDs
e.g. Bluetooth.