diff mbox

[v2,08/46] net/wireless: b43: fix DMA direction for RX buffers

Message ID dba672ae50fdb3286d5b4db6fecfb331fad31da6.1310339688.git.mirq-linux@rere.qmqm.pl
State Rejected, archived
Delegated to: David Miller
Headers show

Commit Message

Michał Mirosław July 11, 2011, 12:52 a.m. UTC 
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 drivers/net/wireless/b43/dma.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 7a09a46..15b11f0 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -336,8 +336,9 @@  static inline
 		dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
 					 buf, len, DMA_TO_DEVICE);
 	} else {
+		/* DMA_BIDIRECTIONAL because of b43_poison_rx_buffer() */
 		dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
-					 buf, len, DMA_FROM_DEVICE);
+					 buf, len, DMA_BIDIRECTIONAL);
 	}
 
 	return dmaaddr;
@@ -352,7 +353,7 @@  static inline
 				 addr, len, DMA_TO_DEVICE);
 	} else {
 		dma_unmap_single(ring->dev->dev->dma_dev,
-				 addr, len, DMA_FROM_DEVICE);
+				 addr, len, DMA_BIDIRECTIONAL);
 	}
 }
 
@@ -362,7 +363,7 @@  static inline
 {
 	B43_WARN_ON(ring->tx);
 	dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
-				    addr, len, DMA_FROM_DEVICE);
+				    addr, len, DMA_BIDIRECTIONAL);
 }
 
 static inline
@@ -371,7 +372,7 @@  static inline
 {
 	B43_WARN_ON(ring->tx);
 	dma_sync_single_for_device(ring->dev->dev->dma_dev,
-				   addr, len, DMA_FROM_DEVICE);
+				   addr, len, DMA_BIDIRECTIONAL);
 }
 
 static inline