--- zzzz-none-000/linux-4.9.231/arch/x86/Kconfig 2020-07-22 07:10:54.000000000 +0000 +++ falcon-5530-730/linux-4.9.231/arch/x86/Kconfig 2022-08-31 08:19:48.000000000 +0000 @@ -31,6 +31,7 @@ select ARCH_HAS_KCOV if X86_64 select ARCH_HAS_PMEM_API if X86_64 select ARCH_HAS_MMIO_FLUSH + select ARCH_HAS_REFCOUNT select ARCH_HAS_SG_CHAIN select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAVE_NMI_SAFE_CMPXCHG