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-rw-r--r--include/asm-sparc64/floppy.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-sparc64/floppy.h b/include/asm-sparc64/floppy.h
index dbe033e494d..331013a0053 100644
--- a/include/asm-sparc64/floppy.h
+++ b/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) */