Commit ff6618e0 authored Oct 19, 2018 by David S. Miller Committed by Greg Kroah-Hartman Dec 01, 2019

sparc: Fix parport build warnings.



[ 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>

parent 3d02e3bb

arch/sparc/include/asm/parport.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;