CONFIG_EFI_GENERIC_STUB (not configurable)

configname: CONFIG_EFI_GENERIC_STUB

Linux Kernel Configuration
└─>Device Drivers
└─>Firmware Drivers
└─>EFI (Extensible Firmware Interface) Support
└─>EFI_GENERIC_STUB
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
depends
CONFIG_EFI

is selected by
CONFIG_EFI_ZBOOT

is depended by
CONFIG_EFI