dmaengine: mv_xor: convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Link: https://lore.kernel.org/r/20200831103542.305571-17-allen.lkml@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/mv_xor.c

@@ -336,9 +336,9 @@ static void mv_chan_slot_cleanup(struct mv_xor_chan *mv_chan)
 		mv_chan->dmachan.completed_cookie = cookie;
 }
 
-static void mv_xor_tasklet(unsigned long data)
+static void mv_xor_tasklet(struct tasklet_struct *t)
 {
-	struct mv_xor_chan *chan = (struct mv_xor_chan *) data;
+	struct mv_xor_chan *chan = from_tasklet(chan, t, irq_tasklet);
 
 	spin_lock(&chan->lock);
 	mv_chan_slot_cleanup(chan);
@@ -1097,8 +1097,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
 
 	mv_chan->mmr_base = xordev->xor_base;
 	mv_chan->mmr_high_base = xordev->xor_high_base;
-	tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long)
-		     mv_chan);
+	tasklet_setup(&mv_chan->irq_tasklet, mv_xor_tasklet);
 
 	/* clear errors before enabling interrupts */
 	mv_chan_clear_err_status(mv_chan);

drivers/dma/mv_xor_v2.c

@@ -553,9 +553,10 @@ int mv_xor_v2_get_pending_params(struct mv_xor_v2_device *xor_dev,
 /*
  * handle the descriptors after HW process
  */
-static void mv_xor_v2_tasklet(unsigned long data)
+static void mv_xor_v2_tasklet(struct tasklet_struct *t)
 {
-	struct mv_xor_v2_device *xor_dev = (struct mv_xor_v2_device *) data;
+	struct mv_xor_v2_device *xor_dev = from_tasklet(xor_dev, t,
+							irq_tasklet);
 	int pending_ptr, num_of_pending, i;
 	struct mv_xor_v2_sw_desc *next_pending_sw_desc = NULL;
 
@@ -780,8 +781,7 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_msi_irqs;
 
-	tasklet_init(&xor_dev->irq_tasklet, mv_xor_v2_tasklet,
-		     (unsigned long) xor_dev);
+	tasklet_setup(&xor_dev->irq_tasklet, mv_xor_v2_tasklet);
 
 	xor_dev->desc_size = mv_xor_v2_set_desc_size(xor_dev);