CONFIG_ETRAX_LED_R_NET0 is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_LED_R_NET0.
Result is shown for kernelversion 6.5.1

Ethernet LED group 0 red LED bit

configname: CONFIG_ETRAX_LED_R_NET0

Linux Kernel Configuration
└─>Ethernet LED group 0 red LED bit
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Bit to use for the red LED in Ethernet LED group 0.