#define txringall_for_each(__dev, __entry) \
        ring_loop(__entry, (__dev)->tx, ring_end(__dev))
 
-/*
- * Compute an array index from a pointer to an element and the base pointer.
- */
-#define ARRAY_INDEX(__elem, __base) \
-       ( ((char *)(__elem) - (char *)(__base)) / sizeof(*(__elem)) )
-
 /*
  * Generic RF access.
  * The RF is being accessed by word index.
 
        struct sk_buff *skbcopy;
        struct rt2x00dump_hdr *dump_hdr;
        struct timeval timestamp;
-       unsigned int ring_index;
-       unsigned int entry_index;
 
        do_gettimeofday(×tamp);
-       ring_index = ARRAY_INDEX(desc->ring, rt2x00dev->rx);
-       entry_index = ARRAY_INDEX(desc->entry, desc->ring->entry);
 
        if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
                return;
        dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf);
        dump_hdr->chip_rev = cpu_to_le32(rt2x00dev->chip.rev);
        dump_hdr->type = cpu_to_le16(desc->frame_type);
-       dump_hdr->ring_index = ring_index;
-       dump_hdr->entry_index = entry_index;
+       dump_hdr->ring_index = desc->ring->queue_idx;
+       dump_hdr->entry_index = desc->entry->entry_idx;
        dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec);
        dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec);
 
 
                entry[i].flags = 0;
                entry[i].ring = ring;
                entry[i].skb = NULL;
+               entry[i].entry_idx = i;
        }
 
        ring->entry = entry;
 static int rt2x00lib_alloc_rings(struct rt2x00_dev *rt2x00dev)
 {
        struct data_ring *ring;
+       unsigned int index;
 
        /*
         * We need the following rings:
         * cw_min: 2^5 = 32.
         * cw_max: 2^10 = 1024.
         */
+       index = 0;
        ring_for_each(rt2x00dev, ring) {
                ring->rt2x00dev = rt2x00dev;
+               ring->queue_idx = index++;
                ring->tx_params.aifs = 2;
                ring->tx_params.cw_min = 5;
                ring->tx_params.cw_max = 10;
 
         */
        void *data_addr;
        dma_addr_t data_dma;
+
+       /*
+        * Entry identification number (index).
+        */
+       unsigned int entry_idx;
 };
 
 /*
        dma_addr_t data_dma;
        void *data_addr;
 
+       /*
+        * Queue identification number:
+        * RX: 0
+        * TX: IEEE80211_TX_*
+        */
+       unsigned int queue_idx;
+
        /*
         * Index variables.
         */
 
                rt2x00_desc_write(txd, 1, word);
 
                rt2x00_desc_read(txd, 5, &word);
-               rt2x00_set_field32(&word, TXD_W5_PID_TYPE, queue);
-               rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE, i);
+               rt2x00_set_field32(&word, TXD_W5_PID_TYPE,
+                                  ring->queue_idx);
+               rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE,
+                                  ring->entry[i].entry_idx);
                rt2x00_desc_write(txd, 5, word);
 
                rt2x00_desc_read(txd, 6, &word);