rt2x00: rt2x00queue: add priv_size field to struct data_queue

Add a new field into struct data_queue and store
the size of the per-queue_entry private data in
that. Additionally, use the new field in the
rt2x00queue_alloc_entries function to compute
the size of the queue entries for a given queue.

The patch does not change the current behaviour
but makes it possible to remove the queue_desc
parameter of the rt2x00queue_alloc_entries function.
That will be done by a subsequent patch.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 5 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5efbbbdca701..7f938a513f3a 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1173,7 +1173,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
         /*
          * Allocate all queue entries.
          */
-        entry_size = sizeof(*entries) + qdesc->priv_size;
+        entry_size = sizeof(*entries) + queue->priv_size;
         entries = kcalloc(queue->limit, entry_size, GFP_KERNEL);
         if (!entries)
                 return -ENOMEM;
@@ -1189,7 +1189,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
                 entries[i].entry_idx = i;
                 entries[i].priv_data =
                     QUEUE_ENTRY_PRIV_OFFSET(entries, i, queue->limit,
-                                            sizeof(*entries), qdesc->priv_size);
+                                            sizeof(*entries), queue->priv_size);
         }
 
 #undef QUEUE_ENTRY_PRIV_OFFSET
@@ -1329,6 +1329,7 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
         queue->data_size = qdesc->data_size;
         queue->desc_size = qdesc->desc_size;
         queue->winfo_size = qdesc->winfo_size;
+        queue->priv_size = qdesc->priv_size;
 }
 
 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev)
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 4a7b34e9261b..2cf4903ce112 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -453,6 +453,7 @@ enum data_queue_flags {
  * @cw_max: The cw max value for outgoing frames (field ignored in RX queue).
  * @data_size: Maximum data size for the frames in this queue.
  * @desc_size: Hardware descriptor size for the data in this queue.
+ * @priv_size: Size of per-queue_entry private data.
  * @usb_endpoint: Device endpoint used for communication (USB only)
  * @usb_maxpacket: Max packet size for given endpoint (USB only)
  */
@@ -481,6 +482,7 @@ struct data_queue {
         unsigned short data_size;
         unsigned char  desc_size;
         unsigned char  winfo_size;
+        unsigned short priv_size;
 
         unsigned short usb_endpoint;
         unsigned short usb_maxpacket;