dmaengine: k3-udma: 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: Allen Pais <allen.lkml@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200831103542.305571-36-allen.lkml@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index de7bfc0..3ce0eb2 100644 (file)
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -2909,9 +2909,9 @@ static void udma_desc_pre_callback(struct virt_dma_chan *vc,
  * This tasklet handles the completion of a DMA descriptor by
  * calling its callback and freeing it.
  */
-static void udma_vchan_complete(unsigned long arg)
+static void udma_vchan_complete(struct tasklet_struct *t)
 {
-       struct virt_dma_chan *vc = (struct virt_dma_chan *)arg;
+       struct virt_dma_chan *vc = from_tasklet(vc, t, task);
        struct virt_dma_desc *vd, *_vd;
        struct dmaengine_desc_callback cb;
        LIST_HEAD(head);
@@ -3667,8 +3667,7 @@ static int udma_probe(struct platform_device *pdev)
 
                vchan_init(&uc->vc, &ud->ddev);
                /* Use custom vchan completion handling */
-               tasklet_init(&uc->vc.task, udma_vchan_complete,
-                            (unsigned long)&uc->vc);
+               tasklet_setup(&uc->vc.task, udma_vchan_complete);
                init_completion(&uc->teardown_completed);
                INIT_DELAYED_WORK(&uc->tx_drain.work, udma_check_tx_completion);
        }