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path: root/drivers/net/wireless/rt2x00/rt2x00pci.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00pci.c77
1 files changed, 49 insertions, 28 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index d6138389a5d..e7e3a459b66 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -74,13 +74,59 @@ EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data);
/*
* TX/RX data handlers.
*/
+static void rt2x00pci_rxdone_entry(struct rt2x00_dev *rt2x00dev,
+ struct queue_entry *entry)
+{
+ struct sk_buff *skb;
+ struct skb_frame_desc *skbdesc;
+ struct rxdone_entry_desc rxdesc;
+ struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+
+ /*
+ * Allocate a new sk_buffer. If no new buffer available, drop the
+ * received frame and reuse the existing buffer.
+ */
+ skb = rt2x00queue_alloc_skb(entry->queue);
+ if (!skb)
+ return;
+
+ /*
+ * Extract the RXD details.
+ */
+ memset(&rxdesc, 0, sizeof(rxdesc));
+ rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
+
+ /*
+ * Copy the received data to the entries' skb.
+ */
+ memcpy(entry->skb->data, entry_priv->data, rxdesc.size);
+ skb_trim(entry->skb, rxdesc.size);
+
+ /*
+ * Fill in skb descriptor
+ */
+ skbdesc = get_skb_frame_desc(entry->skb);
+ memset(skbdesc, 0, sizeof(*skbdesc));
+ skbdesc->desc = entry_priv->desc;
+ skbdesc->desc_len = entry->queue->desc_size;
+ skbdesc->entry = entry;
+
+ /*
+ * Send the frame to rt2x00lib for further processing.
+ */
+ rt2x00lib_rxdone(entry, &rxdesc);
+
+ /*
+ * Replace the entries' skb with the newly allocated one.
+ */
+ entry->skb = skb;
+}
+
void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue = rt2x00dev->rx;
struct queue_entry *entry;
struct queue_entry_priv_pci *entry_priv;
- struct skb_frame_desc *skbdesc;
- struct rxdone_entry_desc rxdesc;
u32 word;
while (1) {
@@ -91,32 +137,7 @@ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC))
break;
- memset(&rxdesc, 0, sizeof(rxdesc));
- rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
-
- /*
- * Allocate the sk_buffer and copy all data into it.
- */
- entry->skb = rt2x00queue_alloc_rxskb(queue);
- if (!entry->skb)
- return;
-
- memcpy(entry->skb->data, entry_priv->data, rxdesc.size);
- skb_trim(entry->skb, rxdesc.size);
-
- /*
- * Fill in skb descriptor
- */
- skbdesc = get_skb_frame_desc(entry->skb);
- memset(skbdesc, 0, sizeof(*skbdesc));
- skbdesc->desc = entry_priv->desc;
- skbdesc->desc_len = queue->desc_size;
- skbdesc->entry = entry;
-
- /*
- * Send the frame to rt2x00lib for further processing.
- */
- rt2x00lib_rxdone(entry, &rxdesc);
+ rt2x00pci_rxdone_entry(rt2x00dev, entry);
if (test_bit(DEVICE_ENABLED_RADIO, &queue->rt2x00dev->flags)) {
rt2x00_set_field32(&word, RXD_ENTRY_OWNER_NIC, 1);