Use DMADirection type for dma_bdrv_io

Currently dma_bdrv_io() takes a 'to_dev' boolean parameter to
determine the direction of DMA it is emulating.  We already have a
DMADirection enum designed specifically to encode DMA directions.
This patch uses it for dma_bdrv_io() as well.  This involves removing
the DMADirection definition from the #ifdef it was inside, but since that
only existed to protect the definition of dma_addr_t from places where
config.h is not included, there wasn't any reason for it to be there in
the first place.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/dma.h b/dma.h
index 20e86d28ee..05ac325e27 100644
--- a/dma.h
+++ b/dma.h
@@ -17,6 +17,11 @@
 
 typedef struct ScatterGatherEntry ScatterGatherEntry;
 
+typedef enum {
+    DMA_DIRECTION_TO_DEVICE = 0,
+    DMA_DIRECTION_FROM_DEVICE = 1,
+} DMADirection;
+
 struct QEMUSGList {
     ScatterGatherEntry *sg;
     int nsg;
@@ -29,11 +34,6 @@ typedef target_phys_addr_t dma_addr_t;
 
 #define DMA_ADDR_FMT TARGET_FMT_plx
 
-typedef enum {
-    DMA_DIRECTION_TO_DEVICE = 0,
-    DMA_DIRECTION_FROM_DEVICE = 1,
-} DMADirection;
-
 struct ScatterGatherEntry {
     dma_addr_t base;
     dma_addr_t len;
@@ -51,7 +51,7 @@ typedef BlockDriverAIOCB *DMAIOFunc(BlockDriverState *bs, int64_t sector_num,
 BlockDriverAIOCB *dma_bdrv_io(BlockDriverState *bs,
                               QEMUSGList *sg, uint64_t sector_num,
                               DMAIOFunc *io_func, BlockDriverCompletionFunc *cb,
-                              void *opaque, bool to_dev);
+                              void *opaque, DMADirection dir);
 BlockDriverAIOCB *dma_bdrv_read(BlockDriverState *bs,
                                 QEMUSGList *sg, uint64_t sector,
                                 BlockDriverCompletionFunc *cb, void *opaque);