[PARISC] Make DMA routines more stubby
We were pretending to use the GENERIC_ISA_DMA routines, but never
selected that symbol. Since ISA DMA is known to not work right now,
just remove the attempts to acquire the dma_spin_lock to fix compile
warnings.
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/dma.h b/include/asm-parisc/dma.h
index 9979c3c..da2cf37 100644
--- a/include/asm-parisc/dma.h
+++ b/include/asm-parisc/dma.h
@@ -72,18 +72,13 @@
#define DMA2_MASK_ALL_REG 0xDE /* all-channels mask (w) */
#define DMA2_EXT_MODE_REG (0x400 | DMA2_MODE_REG)
-extern spinlock_t dma_spin_lock;
-
static __inline__ unsigned long claim_dma_lock(void)
{
- unsigned long flags;
- spin_lock_irqsave(&dma_spin_lock, flags);
- return flags;
+ return 0;
}
static __inline__ void release_dma_lock(unsigned long flags)
{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
}