[SPARC64]: Fix floppy build failure.

Just define a local {claim,release}_dma_lock() implementation
for the floppy driver to use so we don't need to define and
export to modules the silly dma_spin_lock.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc64/dma.h

@@ -15,17 +15,6 @@
 #include <asm/delay.h>
 #include <asm/oplib.h>
 
-extern spinlock_t  dma_spin_lock;
-
-#define claim_dma_lock() \
-({	unsigned long flags; \
-	spin_lock_irqsave(&dma_spin_lock, flags); \
-	flags; \
-})
-
-#define release_dma_lock(__flags) \
-	spin_unlock_irqrestore(&dma_spin_lock, __flags);
-
 /* These are irrelevant for Sparc DMA, but we leave it in so that
  * things can compile.
  */

include/asm-sparc64/floppy.h

@@ -854,4 +854,15 @@ static unsigned long __init sun_floppy_init(void)
 
 #define EXTRA_FLOPPY_PARAMS
 
+static DEFINE_SPINLOCK(dma_spin_lock);
+
+#define claim_dma_lock() \
+({	unsigned long flags; \
+	spin_lock_irqsave(&dma_spin_lock, flags); \
+	flags; \
+})
+
+#define release_dma_lock(__flags) \
+	spin_unlock_irqrestore(&dma_spin_lock, __flags);
+
 #endif /* !(__ASM_SPARC64_FLOPPY_H) */