• Max Filippov's avatar
    xtensa: nommu: select HAVE_FUTEX_CMPXCHG · d951ba21
    Max Filippov authored
    
    
    Not having HAVE_FUTEX_CMPXCHG makes futex_detect_cmpxchg probe
    cmpxchg_futex_value_locked with NULL address. It's not guaranteed to
    fault without MMU, instead it locks up on Xtensa when there's no RAM at
    address 0.
    
    Select HAVE_FUTEX_CMPXCHG in noMMU Xtensa configurations.
    Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
    d951ba21