USB: audio: guard kernel-only code with __KERNEL__

[safe/jmp/linux-2.6] / include / linux / async_tx.h

diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index eb640f0..5fc2ef8 100644 (file)
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -21,6 +21,15 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 
+/* on architectures without dma-mapping capabilities we need to ensure
+ * that the asynchronous path compiles away
+ */
+#ifdef CONFIG_HAS_DMA
+#define __async_inline
+#else
+#define __async_inline __always_inline
+#endif
+
 /**
  * dma_chan_ref - object used to manage dma channels received from the
  *   dmaengine core.
@@ -59,9 +68,7 @@ enum async_tx_flags {
 };
 
 #ifdef CONFIG_DMA_ENGINE
-void async_tx_issue_pending_all(void);
-enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
-void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx);
+#define async_tx_issue_pending_all dma_issue_pending_all
 #ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 #include <asm/async_tx.h>
 #else
@@ -77,19 +84,6 @@ static inline void async_tx_issue_pending_all(void)
        do { } while (0);
 }
 
-static inline enum dma_status
-dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
-{
-       return DMA_SUCCESS;
-}
-
-static inline void
-async_tx_run_dependencies(struct dma_async_tx_descriptor *tx,
-       struct dma_chan *host_chan)
-{
-       do { } while (0);
-}
-
 static inline struct dma_chan *
 async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
        enum dma_transaction_type tx_type, struct page **dst, int dst_count,
@@ -101,21 +95,14 @@ async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
 
 /**
  * async_tx_sync_epilog - actions to take if an operation is run synchronously
- * @flags: async_tx flags
- * @depend_tx: transaction depends on depend_tx
  * @cb_fn: function to call when the transaction completes
  * @cb_fn_param: parameter to pass to the callback routine
  */
 static inline void
-async_tx_sync_epilog(unsigned long flags,
-       struct dma_async_tx_descriptor *depend_tx,
-       dma_async_tx_callback cb_fn, void *cb_fn_param)
+async_tx_sync_epilog(dma_async_tx_callback cb_fn, void *cb_fn_param)
 {
        if (cb_fn)
                cb_fn(cb_fn_param);
-
-       if (depend_tx && (flags & ASYNC_TX_DEP_ACK))
-               async_tx_ack(depend_tx);
 }
 
 void
@@ -152,4 +139,6 @@ struct dma_async_tx_descriptor *
 async_trigger_callback(enum async_tx_flags flags,
        struct dma_async_tx_descriptor *depend_tx,
        dma_async_tx_callback cb_fn, void *cb_fn_param);
+
+void async_tx_quiesce(struct dma_async_tx_descriptor **tx);
 #endif /* _ASYNC_TX_H_ */