mv_xor: implement a private tx_list

Drop mv_xor's use of tx_list from struct dma_async_tx_descriptor in
preparation for removal of this field.

Cc: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 3f23eabe09f2..466ab10c1ff1 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -517,7 +517,7 @@ retry:
                         }
                         alloc_tail->group_head = alloc_start;
                         alloc_tail->async_tx.cookie = -EBUSY;
-                        list_splice(&chain, &alloc_tail->async_tx.tx_list);
+                        list_splice(&chain, &alloc_tail->tx_list);
                         mv_chan->last_used = last_used;
                         mv_desc_clear_next_desc(alloc_start);
                         mv_desc_clear_next_desc(alloc_tail);
@@ -565,14 +565,14 @@ mv_xor_tx_submit(struct dma_async_tx_descriptor *tx)
         cookie = mv_desc_assign_cookie(mv_chan, sw_desc);
 
         if (list_empty(&mv_chan->chain))
-                list_splice_init(&sw_desc->async_tx.tx_list, &mv_chan->chain);
+                list_splice_init(&sw_desc->tx_list, &mv_chan->chain);
         else {
                 new_hw_chain = 0;
 
                 old_chain_tail = list_entry(mv_chan->chain.prev,
                                             struct mv_xor_desc_slot,
                                             chain_node);
-                list_splice_init(&grp_start->async_tx.tx_list,
+                list_splice_init(&grp_start->tx_list,
                                  &old_chain_tail->chain_node);
 
                 if (!mv_can_chain(grp_start))
@@ -632,6 +632,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
                 slot->async_tx.tx_submit = mv_xor_tx_submit;
                 INIT_LIST_HEAD(&slot->chain_node);
                 INIT_LIST_HEAD(&slot->slot_node);
+                INIT_LIST_HEAD(&slot->tx_list);
                 hw_desc = (char *) mv_chan->device->dma_desc_pool;
                 slot->async_tx.phys =
                         (dma_addr_t) &hw_desc[idx * MV_XOR_SLOT_SIZE];