[PATCH 4.14 073/211] sparc: Fix parport build warnings.
From: Greg Kroah-Hartman
Date: Wed Nov 27 2019 - 15:48:58 EST
From: David S. Miller <davem@xxxxxxxxxxxxx>
[ 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: âdma_spin_lockâ defined but not used [-Wunused-variable]
static DEFINE_SPINLOCK(dma_spin_lock);
^~~~~~~~~~~~~
./include/linux/spinlock_types.h:81:39: note: in definition of macro âDEFINE_SPINLOCKâ
#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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