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authorIvo van Doorn <ivdoorn@gmail.com>2008-07-04 14:56:07 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-07-08 14:16:04 -0400
commitff352391acfac1e183c8c8b2858f9393bd064a65 (patch)
tree33beda14985f49a09fed0a7d9ff2339554f8471a
parent50db7875d9dcd89f7624b13535738612faf8db0c (diff)
rt2x00: Decrease alignment headroom
We only need 4 bytes of headroom for alignment purposes in the RX frame. It was previously higher for optimization purposes which are no longer possible due to DMA mappings. v2: Fix patch error Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00queue.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 8e86611791f..3ddce538ef4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -45,10 +45,11 @@ struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
frame_size = entry->queue->data_size + entry->queue->desc_size;
/*
- * Reserve a few bytes extra headroom to allow drivers some moving
- * space (e.g. for alignment), while keeping the skb aligned.
+ * The payload should be aligned to a 4-byte boundary,
+ * this means we need at least 3 bytes for moving the frame
+ * into the correct offset.
*/
- reserved_size = 8;
+ reserved_size = 4;
/*
* Allocate skbuffer.