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;