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    Subject[PATCH RFC 26/26] xtensa: Remove spin_unlock_wait() arch-specific definitions
    Date
    There is no agreed-upon definition of spin_unlock_wait()'s semantics,
    and it appears that all callers could do just as well with a lock/unlock
    pair. This commit therefore removes the underlying arch-specific
    arch_spin_unlock_wait().

    Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: Chris Zankel <chris@zankel.net>
    Cc: Max Filippov <jcmvbkbc@gmail.com>
    Cc: <linux-xtensa@linux-xtensa.org>
    ---
    arch/xtensa/include/asm/spinlock.h | 5 -----
    1 file changed, 5 deletions(-)

    diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
    index a36221cf6363..3bb49681ee24 100644
    --- a/arch/xtensa/include/asm/spinlock.h
    +++ b/arch/xtensa/include/asm/spinlock.h
    @@ -33,11 +33,6 @@

    #define arch_spin_is_locked(x) ((x)->slock != 0)

    -static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
    -{
    - smp_cond_load_acquire(&lock->slock, !VAL);
    -}
    -
    #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)

    static inline void arch_spin_lock(arch_spinlock_t *lock)
    --
    2.5.2
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