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    Subject[PATCH 4.14 073/211] sparc: Fix parport build warnings.
    Date
    From: David S. Miller <davem@davemloft.net>

    [ Upstream commit 46b8306480fb424abd525acc1763da1c63a27d8a ]

    If PARPORT_PC_FIFO is not enabled, do not provide the dma lock
    macros and lock definition. Otherwise:

    ./arch/sparc/include/asm/parport.h:24:24: warning: ‘dma_spin_lock’ defined but not used [-Wunused-variable]
    static DEFINE_SPINLOCK(dma_spin_lock);
    ^~~~~~~~~~~~~
    ./include/linux/spinlock_types.h:81:39: note: in definition of macro ‘DEFINE_SPINLOCK’
    #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)

    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/sparc/include/asm/parport.h | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
    index 05df5f0430535..3c5a1c620f0f7 100644
    --- a/arch/sparc/include/asm/parport.h
    +++ b/arch/sparc/include/asm/parport.h
    @@ -21,6 +21,7 @@
    */
    #define HAS_DMA

    +#ifdef CONFIG_PARPORT_PC_FIFO
    static DEFINE_SPINLOCK(dma_spin_lock);

    #define claim_dma_lock() \
    @@ -31,6 +32,7 @@ static DEFINE_SPINLOCK(dma_spin_lock);

    #define release_dma_lock(__flags) \
    spin_unlock_irqrestore(&dma_spin_lock, __flags);
    +#endif

    static struct sparc_ebus_info {
    struct ebus_dma_info info;
    --
    2.20.1


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