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Date:   Mon, 17 Aug 2020 13:47:21 +0530
From:   Allen Pais <>
        Allen Pais <>,
        Romain Perier <>
Subject: [PATCH 30/35] dma: virt-dma: 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 <>
Signed-off-by: Allen Pais <>
 drivers/dma/virt-dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/virt-dma.c b/drivers/dma/virt-dma.c
index 23e33a85f033..a6f4265be0c9 100644
--- a/drivers/dma/virt-dma.c
+++ b/drivers/dma/virt-dma.c
@@ -80,9 +80,9 @@ EXPORT_SYMBOL_GPL(vchan_find_desc);
  * This tasklet handles the completion of a DMA descriptor by
  * calling its callback and freeing it.
-static void vchan_complete(unsigned long arg)
+static void 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;
@@ -131,7 +131,7 @@ void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev)
-	tasklet_init(&vc->task, vchan_complete, (unsigned long)vc);
+	tasklet_setup(&vc->task, vchan_complete);
 	vc->chan.device = dmadev;
 	list_add_tail(&vc->chan.device_node, &dmadev->channels);

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