CONFIG_CMDLINE_EXTEND is not available for thedefaultarchitecture x86.
Result is shown for architecture sh
Extend bootloader kernel arguments
configname: CONFIG_CMDLINE_EXTEND
Kernel command line
└─>Extend bootloader kernel arguments
In linux kernel since version 2.6.32 (release Date: 2009-12-02)
Given string will be concatenated with arguments passed in
by a bootloader.
by a bootloader.