[PATCH AUTOSEL 4.9 38/99] sparc: Fix parport build warnings.

Sasha Levin
2019-11-16T16:03:35Z

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 f005ccac91cc9..e87c0f81b700e 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -20,6 +20,7 @@
*/
#define HAS_DMA

+#ifdef CONFIG_PARPORT_PC_FIFO
static DEFINE_SPINLOCK(dma_spin_lock);

#define claim_dma_lock() \
@@ -30,6 +31,7 @@ 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