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From: Allen Pais <allen.lkml@gmail.com>
To: vkoul@kernel.org
Cc: green.wan@sifive.com, hyun.kwon@xilinx.com,
	dmaengine@vger.kernel.org, Allen Pais <apais@linux.microsoft.com>,
	Romain Perier <romain.perier@gmail.com>
Subject: [PATCH 1/2] dmaengine: sf-pdma: convert tasklets to use new tasklet_setup() API
Date: Tue,  6 Oct 2020 10:34:57 +0530
Message-ID: <20201006050458.221329-1-allen.lkml@gmail.com> (raw)

From: Allen Pais <apais@linux.microsoft.com>

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 <apais@linux.microsoft.com>
---
 drivers/dma/sf-pdma/sf-pdma.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/sf-pdma/sf-pdma.c b/drivers/dma/sf-pdma/sf-pdma.c
index 1e66c6990..528deb5d9 100644
--- a/drivers/dma/sf-pdma/sf-pdma.c
+++ b/drivers/dma/sf-pdma/sf-pdma.c
@@ -281,9 +281,9 @@ static void sf_pdma_free_desc(struct virt_dma_desc *vdesc)
 	desc->in_use = false;
 }
 
-static void sf_pdma_donebh_tasklet(unsigned long arg)
+static void sf_pdma_donebh_tasklet(struct tasklet_struct *t)
 {
-	struct sf_pdma_chan *chan = (struct sf_pdma_chan *)arg;
+	struct sf_pdma_chan *chan = from_tasklet(chan, t, done_tasklet);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chan->lock, flags);
@@ -300,9 +300,9 @@ static void sf_pdma_donebh_tasklet(unsigned long arg)
 	spin_unlock_irqrestore(&chan->vchan.lock, flags);
 }
 
-static void sf_pdma_errbh_tasklet(unsigned long arg)
+static void sf_pdma_errbh_tasklet(struct tasklet_struct *t)
 {
-	struct sf_pdma_chan *chan = (struct sf_pdma_chan *)arg;
+	struct sf_pdma_chan *chan = from_tasklet(chan, t, err_tasklet);
 	struct sf_pdma_desc *desc = chan->desc;
 	unsigned long flags;
 
@@ -475,10 +475,8 @@ static void sf_pdma_setup_chans(struct sf_pdma *pdma)
 
 		writel(PDMA_CLEAR_CTRL, chan->regs.ctrl);
 
-		tasklet_init(&chan->done_tasklet,
-			     sf_pdma_donebh_tasklet, (unsigned long)chan);
-		tasklet_init(&chan->err_tasklet,
-			     sf_pdma_errbh_tasklet, (unsigned long)chan);
+		tasklet_setup(&chan->done_tasklet, sf_pdma_donebh_tasklet);
+		tasklet_setup(&chan->err_tasklet, sf_pdma_errbh_tasklet);
 	}
 }
 
-- 
2.25.1


             reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-06  5:04 Allen Pais [this message]
2020-10-06  5:04 ` [PATCH 2/2] dmaengine: xilinx: dpdma: " Allen Pais
2020-10-07  7:09 ` [PATCH 1/2] dmaengine: sf-pdma: " Vinod Koul

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