default or selected kernelversion does not have config value CONFIG_PCI_LOCKLESS_CONFIG.
Result is shown for kernelversion 6.9-rc5

CONFIG_PCI_LOCKLESS_CONFIG (not configurable)

configname: CONFIG_PCI_LOCKLESS_CONFIG

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI_LOCKLESS_CONFIG
In linux kernel since version 3.10 (release Date: 2013-06-30)  
depends
CONFIG_PCI