Current DMA direction definitions in pci-dma-compat.h and dma-direction.h
are mirrored in value. Unify them to enhance readability and avoid
possible inconsistency.
Cc: Joey Zheng <yu.zheng@xxxxxxxxxxxxxxxx>
Signed-off-by: Shunyong Yang <shunyong.yang@xxxxxxxxxxxxxxxx>
---
include/linux/dma-direction.h | 2 +-
include/linux/pci-dma-compat.h | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/dma-direction.h b/include/linux/dma-direction.h
index 3649a031893a..9d52716e9218 100644
--- a/include/linux/dma-direction.h
+++ b/include/linux/dma-direction.h
@@ -2,7 +2,7 @@
#ifndef _LINUX_DMA_DIRECTION_H
#define _LINUX_DMA_DIRECTION_H
/*
- * These definitions mirror those in pci.h, so they can be used
+ * These definitions mirror those in pci-dma-compat.h, so they can be used
* interchangeably with their PCI_ counterparts.
*/
enum dma_data_direction {
diff --git a/include/linux/pci-dma-compat.h b/include/linux/pci-dma-compat.h
index 0dd1a3f7b309..c1c8d49b6072 100644
--- a/include/linux/pci-dma-compat.h
+++ b/include/linux/pci-dma-compat.h
@@ -8,10 +8,10 @@
#include <linux/dma-mapping.h>
/* This defines the direction arg to the DMA mapping routines. */
-#define PCI_DMA_BIDIRECTIONAL 0
-#define PCI_DMA_TODEVICE 1
-#define PCI_DMA_FROMDEVICE 2
-#define PCI_DMA_NONE 3
+#define PCI_DMA_BIDIRECTIONAL (DMA_BIDIRECTIONAL)
+#define PCI_DMA_TODEVICE (DMA_TO_DEVICE)
+#define PCI_DMA_FROMDEVICE (DMA_FROM_DEVICE)
+#define PCI_DMA_NONE (DMA_NONE)
static inline void *
pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
--
1.8.3.1
