The
CONFIG_LTO_CLANG=y I added will be overridden:.config:10591:warning: override: reassigning to symbol ARCH_SUPPORTS_LTO_CLANG.config:10592:warning: override: reassigning to symbol ARCH_SUPPORTS_LTO_CLANG_THIN.config:10594:warning: override: reassigning to symbol LTO_NONE.config:10597:warning: override: reassigning to symbol ARCH_SUPPORTS_CFI_CLANG