CONFIG_PARISC is not available for thedefaultarchitecture x86.
Result is shown for architecture parisc

CONFIG_PARISC (not configurable)

modulename: setup-bus.ko

configname: CONFIG_PARISC

Linux/PA-RISC Kernel Configuration
└─>PARISC
In linux kernel since version 2.6.12  
The PA-RISC microprocessor is designed by Hewlett-Packard and used
in many of their workstations & servers (HP9000 700 and 800 series,
and later HP3000 series). The PA-RISC Linux project home page is
at <http://www.parisc-linux.org/>.

source code:
selects
CONFIG_HAVE_IDE
CONFIG_HAVE_OPROFILE
CONFIG_HAVE_FUNCTION_TRACER
CONFIG_HAVE_FUNCTION_GRAPH_TRACER
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
CONFIG_RTC_CLASS
CONFIG_RTC_DRV_GENERIC
CONFIG_INIT_ALL_POSSIBLE
CONFIG_BUG
CONFIG_HAVE_PERF_COUNTERS
CONFIG_GENERIC_ATOMIC64
CONFIG_HAVE_IRQ_WORK
CONFIG_HAVE_PERF_EVENTS
CONFIG_HAVE_GENERIC_HARDIRQS
CONFIG_GENERIC_IRQ_PROBE
CONFIG_GENERIC_PCI_IOMAP
CONFIG_IRQ_PER_CPU
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
CONFIG_GENERIC_SMP_IDLE_THREAD
CONFIG_GENERIC_STRNCPY_FROM_USER
CONFIG_BROKEN_RODATA
CONFIG_HAVE_MOD_ARCH_SPECIFIC
CONFIG_MODULES_USE_ELF_RELA
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT
CONFIG_ARCH_WANT_FRAME_POINTERS
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
CONFIG_SYSCTL_EXCEPTION_TRACE
CONFIG_VIRT_TO_BUS
CONFIG_CLONE_BACKWARDS
CONFIG_TTY
CONFIG_HAVE_DEBUG_STACKOVERFLOW
CONFIG_HAVE_ARCH_AUDITSYSCALL
CONFIG_ARCH_32BIT_OFF_T
CONFIG_HAVE_SYSCALL_TRACEPOINTS
CONFIG_ARCH_HAS_ELF_RANDOMIZE
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX
CONFIG_ARCH_HAS_STRICT_MODULE_RWX
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL
CONFIG_ARCH_NO_SG_CHAIN
CONFIG_ARCH_SUPPORTS_HUGETLBFS
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE
CONFIG_DMA_OPS
CONFIG_BUILDTIME_TABLE_SORT
CONFIG_HAVE_PCI
CONFIG_HAVE_KERNEL_BZIP2
CONFIG_HAVE_KERNEL_GZIP
CONFIG_HAVE_KERNEL_LZ4
CONFIG_HAVE_KERNEL_LZMA
CONFIG_HAVE_KERNEL_LZO
CONFIG_HAVE_KERNEL_XZ
CONFIG_GENERIC_CPU_DEVICES
CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED
CONFIG_HAVE_ARCH_HASH
CONFIG_HAVE_ARCH_JUMP_LABEL
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE
CONFIG_HAVE_ARCH_SECCOMP_FILTER
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
CONFIG_GENERIC_SCHED_CLOCK
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
CONFIG_LEGACY_TIMER_TICK
CONFIG_CPU_NO_EFFICIENT_FFS
CONFIG_NEED_DMA_MAP_STATE
CONFIG_NEED_SG_DMA_LENGTH
CONFIG_HAVE_ARCH_KGDB
CONFIG_HAVE_KPROBES
CONFIG_HAVE_KRETPROBES
CONFIG_HAVE_DYNAMIC_FTRACE
CONFIG_HAVE_FTRACE_MCOUNT_RECORD
CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
CONFIG_HAVE_KPROBES_ON_FTRACE
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
CONFIG_TRACE_IRQFLAGS_SUPPORT

is selected by
CONFIG_FB_STI