Merge branch 'topic/tasklet' into next

42 files changed, 131 insertions, 151 deletions

diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c
index 321ac3a7aa41..4d6751bf6f11 100644
--- a/drivers/dma/altera-msgdma.c
+++ b/drivers/dma/altera-msgdma.c
@@ -680,9 +680,9 @@ static int msgdma_alloc_chan_resources(struct dma_chan *dchan)
  * msgdma_tasklet - Schedule completion tasklet
  * @data: Pointer to the Altera sSGDMA channel structure
  */
-static void msgdma_tasklet(unsigned long data)
+static void msgdma_tasklet(struct tasklet_struct *t)
 {
-	struct msgdma_device *mdev = (struct msgdma_device *)data;
+	struct msgdma_device *mdev = from_tasklet(mdev, t, irq_tasklet);
 	u32 count;
 	u32 __maybe_unused size;
 	u32 __maybe_unused status;
@@ -830,7 +830,7 @@ static int msgdma_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	tasklet_init(&mdev->irq_tasklet, msgdma_tasklet, (unsigned long)mdev);
+	tasklet_setup(&mdev->irq_tasklet, msgdma_tasklet);
 
 	dma_cookie_init(&mdev->dmachan);
 
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index a2cf25c6e3b3..7eaee5b705b1 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -598,9 +598,9 @@ static void atc_handle_cyclic(struct at_dma_chan *atchan)
 
 /*--  IRQ & Tasklet  ---------------------------------------------------*/
 
-static void atc_tasklet(unsigned long data)
+static void atc_tasklet(struct tasklet_struct *t)
 {
-	struct at_dma_chan *atchan = (struct at_dma_chan *)data;
+	struct at_dma_chan *atchan = from_tasklet(atchan, t, tasklet);
 
 	if (test_and_clear_bit(ATC_IS_ERROR, &atchan->status))
 		return atc_handle_error(atchan);
@@ -1892,8 +1892,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
 		INIT_LIST_HEAD(&atchan->queue);
 		INIT_LIST_HEAD(&atchan->free_list);
 
-		tasklet_init(&atchan->tasklet, atc_tasklet,
-				(unsigned long)atchan);
+		tasklet_setup(&atchan->tasklet, atc_tasklet);
 		atc_enable_chan_irq(atdma, i);
 	}
 
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index fd92f048c491..3b53115db268 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1613,9 +1613,9 @@ static void at_xdmac_handle_error(struct at_xdmac_chan *atchan)
 	/* Then continue with usual descriptor management */
 }
 
-static void at_xdmac_tasklet(unsigned long data)
+static void at_xdmac_tasklet(struct tasklet_struct *t)
 {
-	struct at_xdmac_chan	*atchan = (struct at_xdmac_chan *)data;
+	struct at_xdmac_chan	*atchan = from_tasklet(atchan, t, tasklet);
 	struct at_xdmac_desc	*desc;
 	u32			error_mask;
 
@@ -2063,8 +2063,7 @@ static int at_xdmac_probe(struct platform_device *pdev)
 		spin_lock_init(&atchan->lock);
 		INIT_LIST_HEAD(&atchan->xfers_list);
 		INIT_LIST_HEAD(&atchan->free_descs_list);
-		tasklet_init(&atchan->tasklet, at_xdmac_tasklet,
-			     (unsigned long)atchan);
+		tasklet_setup(&atchan->tasklet, at_xdmac_tasklet);
 
 		/* Clear pending interrupts. */
 		while (at_xdmac_chan_read(atchan, AT_XDMAC_CIS))
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 1092d4ce723e..95b9b2f5358e 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -1868,9 +1868,9 @@ static struct coh901318_desc *coh901318_queue_start(struct coh901318_chan *cohc)
  * This tasklet is called from the interrupt handler to
  * handle each descriptor (DMA job) that is sent to a channel.
  */
-static void dma_tasklet(unsigned long data)
+static void dma_tasklet(struct tasklet_struct *t)
 {
-	struct coh901318_chan *cohc = (struct coh901318_chan *) data;
+	struct coh901318_chan *cohc = from_tasklet(cohc, t, tasklet);
 	struct coh901318_desc *cohd_fin;
 	unsigned long flags;
 	struct dmaengine_desc_callback cb;
@@ -2615,8 +2615,7 @@ static void coh901318_base_init(struct dma_device *dma, const int *pick_chans,
 			INIT_LIST_HEAD(&cohc->active);
 			INIT_LIST_HEAD(&cohc->queue);
 
-			tasklet_init(&cohc->tasklet, dma_tasklet,
-				     (unsigned long) cohc);
+			tasklet_setup(&cohc->tasklet, dma_tasklet);
 
 			list_add_tail(&cohc->chan.device_node,
 				      &dma->channels);
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 5f7b9badb965..7ab83fe601ed 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -463,9 +463,9 @@ static void dwc_handle_error(struct dw_dma *dw, struct dw_dma_chan *dwc)
 	dwc_descriptor_complete(dwc, bad_desc, true);
 }
 
-static void dw_dma_tasklet(unsigned long data)
+static void dw_dma_tasklet(struct tasklet_struct *t)
 {
-	struct dw_dma *dw = (struct dw_dma *)data;
+	struct dw_dma *dw = from_tasklet(dw, t, tasklet);
 	struct dw_dma_chan *dwc;
 	u32 status_xfer;
 	u32 status_err;
@@ -1142,7 +1142,7 @@ int do_dma_probe(struct dw_dma_chip *chip)
 		goto err_pdata;
 	}
 
-	tasklet_init(&dw->tasklet, dw_dma_tasklet, (unsigned long)dw);
+	tasklet_setup(&dw->tasklet, dw_dma_tasklet);
 
 	err = request_irq(chip->irq, dw_dma_interrupt, IRQF_SHARED,
 			  dw->name, dw);
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 87a246012629..01027779beb8 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -745,9 +745,9 @@ static void ep93xx_dma_advance_work(struct ep93xx_dma_chan *edmac)
 	spin_unlock_irqrestore(&edmac->lock, flags);
 }
 
-static void ep93xx_dma_tasklet(unsigned long data)
+static void ep93xx_dma_tasklet(struct tasklet_struct *t)
 {
-	struct ep93xx_dma_chan *edmac = (struct ep93xx_dma_chan *)data;
+	struct ep93xx_dma_chan *edmac = from_tasklet(edmac, t, tasklet);
 	struct ep93xx_dma_desc *desc, *d;
 	struct dmaengine_desc_callback cb;
 	LIST_HEAD(list);
@@ -1353,8 +1353,7 @@ static int __init ep93xx_dma_probe(struct platform_device *pdev)
 		INIT_LIST_HEAD(&edmac->active);
 		INIT_LIST_HEAD(&edmac->queue);
 		INIT_LIST_HEAD(&edmac->free_list);
-		tasklet_init(&edmac->tasklet, ep93xx_dma_tasklet,
-			     (unsigned long)edmac);
+		tasklet_setup(&edmac->tasklet, ep93xx_dma_tasklet);
 
 		list_add_tail(&edmac->chan.device_node,
 			      &dma_dev->channels);
diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c
index 493dc6c59d1d..1ddd7cee2e7a 100644
--- a/drivers/dma/fsl_raid.c
+++ b/drivers/dma/fsl_raid.c
@@ -154,9 +154,9 @@ static void fsl_re_cleanup_descs(struct fsl_re_chan *re_chan)
 	fsl_re_issue_pending(&re_chan->chan);
 }
 
-static void fsl_re_dequeue(unsigned long data)
+static void fsl_re_dequeue(struct tasklet_struct *t)
 {
-	struct fsl_re_chan *re_chan;
+	struct fsl_re_chan *re_chan = from_tasklet(re_chan, t, irqtask);
 	struct fsl_re_desc *desc, *_desc;
 	struct fsl_re_hw_desc *hwdesc;
 	unsigned long flags;
@@ -671,7 +671,7 @@ static int fsl_re_chan_probe(struct platform_device *ofdev,
 	snprintf(chan->name, sizeof(chan->name), "re_jr%02d", q);
 
 	chandev = &chan_ofdev->dev;
-	tasklet_init(&chan->irqtask, fsl_re_dequeue, (unsigned long)chandev);
+	tasklet_setup(&chan->irqtask, fsl_re_dequeue);
 
 	ret = request_irq(chan->irq, fsl_re_isr, 0, chan->name, chandev);
 	if (ret) {
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index e342cf52d296..0feb323bae1e 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -976,9 +976,9 @@ static irqreturn_t fsldma_chan_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static void dma_do_tasklet(unsigned long data)
+static void dma_do_tasklet(struct tasklet_struct *t)
 {
-	struct fsldma_chan *chan = (struct fsldma_chan *)data;
+	struct fsldma_chan *chan = from_tasklet(chan, t, tasklet);
 
 	chan_dbg(chan, "tasklet entry\n");
 
@@ -1151,7 +1151,7 @@ static int fsl_dma_chan_probe(struct fsldma_device *fdev,
 	}
 
 	fdev->chan[chan->id] = chan;
-	tasklet_init(&chan->tasklet, dma_do_tasklet, (unsigned long)chan);
+	tasklet_setup(&chan->tasklet, dma_do_tasklet);
 	snprintf(chan->name, sizeof(chan->name), "chan%d", chan->id);
 
 	/* Initialize the channel */
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 67ac2e68707e..670db04b0757 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -612,9 +612,9 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
 	return 0;
 }
 
-static void imxdma_tasklet(unsigned long data)
+static void imxdma_tasklet(struct tasklet_struct *t)
 {
-	struct imxdma_channel *imxdmac = (void *)data;
+	struct imxdma_channel *imxdmac = from_tasklet(imxdmac, t, dma_tasklet);
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
 	struct imxdma_desc *desc, *next_desc;
 	unsigned long flags;
@@ -1168,8 +1168,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
 		INIT_LIST_HEAD(&imxdmac->ld_free);
 		INIT_LIST_HEAD(&imxdmac->ld_active);
 
-		tasklet_init(&imxdmac->dma_tasklet, imxdma_tasklet,
-			     (unsigned long)imxdmac);
+		tasklet_setup(&imxdmac->dma_tasklet, imxdma_tasklet);
 		imxdmac->chan.device = &imxdma->dma_device;
 		dma_cookie_init(&imxdmac->chan);
 		imxdmac->channel = i;
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 8cce4e059b7a..736b2658245f 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -165,7 +165,7 @@ void ioat_stop(struct ioatdma_chan *ioat_chan)
 	tasklet_kill(&ioat_chan->cleanup_task);
 
 	/* final cleanup now that everything is quiesced and can't re-arm */
-	ioat_cleanup_event((unsigned long)&ioat_chan->dma_chan);
+	ioat_cleanup_event(&ioat_chan->cleanup_task);
 }
 
 static void __ioat_issue_pending(struct ioatdma_chan *ioat_chan)
@@ -690,9 +690,9 @@ static void ioat_cleanup(struct ioatdma_chan *ioat_chan)
 	spin_unlock_bh(&ioat_chan->cleanup_lock);
 }
 
-void ioat_cleanup_event(unsigned long data)
+void ioat_cleanup_event(struct tasklet_struct *t)
 {
-	struct ioatdma_chan *ioat_chan = to_ioat_chan((void *)data);
+	struct ioatdma_chan *ioat_chan = from_tasklet(ioat_chan, t, cleanup_task);
 
 	ioat_cleanup(ioat_chan);
 	if (!test_bit(IOAT_RUN, &ioat_chan->state))
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index f7f31fdf14cf..140cfe3782fb 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -393,7 +393,7 @@ int ioat_reset_hw(struct ioatdma_chan *ioat_chan);
 enum dma_status
 ioat_tx_status(struct dma_chan *c, dma_cookie_t cookie,
 		struct dma_tx_state *txstate);
-void ioat_cleanup_event(unsigned long data);
+void ioat_cleanup_event(struct tasklet_struct *t);
 void ioat_timer_event(struct timer_list *t);
 int ioat_check_space_lock(struct ioatdma_chan *ioat_chan, int num_descs);
 void ioat_issue_pending(struct dma_chan *chan);
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index 8a53f5c96b16..191b59279007 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -767,8 +767,6 @@ ioat_init_channel(struct ioatdma_device *ioat_dma,
 		  struct ioatdma_chan *ioat_chan, int idx)
 {
 	struct dma_device *dma = &ioat_dma->dma_dev;
-	struct dma_chan *c = &ioat_chan->dma_chan;
-	unsigned long data = (unsigned long) c;
 
 	ioat_chan->ioat_dma = ioat_dma;
 	ioat_chan->reg_base = ioat_dma->reg_base + (0x80 * (idx + 1));
@@ -778,7 +776,7 @@ ioat_init_channel(struct ioatdma_device *ioat_dma,
 	list_add_tail(&ioat_chan->dma_chan.device_node, &dma->channels);
 	ioat_dma->idx[idx] = ioat_chan;
 	timer_setup(&ioat_chan->timer, ioat_timer_event, 0);
-	tasklet_init(&ioat_chan->cleanup_task, ioat_cleanup_event, data);
+	tasklet_setup(&ioat_chan->cleanup_task, ioat_cleanup_event);
 }
 
 #define IOAT_NUM_SRC_TEST 6 /* must be <= 8 */
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 48d56c9f3619..310b899d581f 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -238,9 +238,10 @@ iop_adma_slot_cleanup(struct iop_adma_chan *iop_chan)
 	spin_unlock_bh(&iop_chan->lock);
 }
 
-static void iop_adma_tasklet(unsigned long data)
+static void iop_adma_tasklet(struct tasklet_struct *t)
 {
-	struct iop_adma_chan *iop_chan = (struct iop_adma_chan *) data;
+	struct iop_adma_chan *iop_chan = from_tasklet(iop_chan, t,
+						      irq_tasklet);
 
 	/* lockdep will flag depedency submissions as potentially
 	 * recursive locking, this is not the case as a dependency
@@ -1350,8 +1351,7 @@ static int iop_adma_probe(struct platform_device *pdev)
 		ret = -ENOMEM;
 		goto err_free_iop_chan;
 	}
-	tasklet_init(&iop_chan->irq_tasklet, iop_adma_tasklet, (unsigned long)
-		iop_chan);
+	tasklet_setup(&iop_chan->irq_tasklet, iop_adma_tasklet);
 
 	/* clear errors before enabling interrupts */
 	iop_adma_device_clear_err_status(iop_chan);
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 0457b1f26540..38036db284cb 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1299,9 +1299,9 @@ static irqreturn_t idmac_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void ipu_gc_tasklet(unsigned long arg)
+static void ipu_gc_tasklet(struct tasklet_struct *t)
 {
-	struct ipu *ipu = (struct ipu *)arg;
+	struct ipu *ipu = from_tasklet(ipu, t, tasklet);
 	int i;
 
 	for (i = 0; i < IPU_CHANNELS_NUM; i++) {
@@ -1740,7 +1740,7 @@ static int __init ipu_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_idmac_init;
 
-	tasklet_init(&ipu_data.tasklet, ipu_gc_tasklet, (unsigned long)&ipu_data);
+	tasklet_setup(&ipu_data.tasklet, ipu_gc_tasklet);
 
 	ipu_data.dev = &pdev->dev;
 
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index c5c1aa0dcaed..f609a84c493c 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -297,9 +297,9 @@ static int k3_dma_start_txd(struct k3_dma_chan *c)
 	return -EAGAIN;
 }
 
-static void k3_dma_tasklet(unsigned long arg)
+static void k3_dma_tasklet(struct tasklet_struct *t)
 {
-	struct k3_dma_dev *d = (struct k3_dma_dev *)arg;
+	struct k3_dma_dev *d = from_tasklet(d, t, task);
 	struct k3_dma_phy *p;
 	struct k3_dma_chan *c, *cn;
 	unsigned pch, pch_alloc = 0;
@@ -962,7 +962,7 @@ static int k3_dma_probe(struct platform_device *op)
 
 	spin_lock_init(&d->lock);
 	INIT_LIST_HEAD(&d->chan_pending);
-	tasklet_init(&d->task, k3_dma_tasklet, (unsigned long)d);
+	tasklet_setup(&d->task, k3_dma_tasklet);
 	platform_set_drvdata(op, d);
 	dev_info(&op->dev, "initialized\n");
 
diff --git a/drivers/dma/mediatek/mtk-cqdma.c b/drivers/dma/mediatek/mtk-cqdma.c
index 6bf838e63be1..41ef9f15d3d5 100644
--- a/drivers/dma/mediatek/mtk-cqdma.c
+++ b/drivers/dma/mediatek/mtk-cqdma.c
@@ -356,9 +356,9 @@ static struct mtk_cqdma_vdesc
 	return ret;
 }
 
-static void mtk_cqdma_tasklet_cb(unsigned long data)
+static void mtk_cqdma_tasklet_cb(struct tasklet_struct *t)
 {
-	struct mtk_cqdma_pchan *pc = (struct mtk_cqdma_pchan *)data;
+	struct mtk_cqdma_pchan *pc = from_tasklet(pc, t, tasklet);
 	struct mtk_cqdma_vdesc *cvd = NULL;
 	unsigned long flags;
 
@@ -878,8 +878,7 @@ static int mtk_cqdma_probe(struct platform_device *pdev)
 
 	/* initialize tasklet for each PC */
 	for (i = 0; i < cqdma->dma_channels; ++i)
-		tasklet_init(&cqdma->pc[i]->tasklet, mtk_cqdma_tasklet_cb,
-			     (unsigned long)cqdma->pc[i]);
+		tasklet_setup(&cqdma->pc[i]->tasklet, mtk_cqdma_tasklet_cb);
 
 	dev_info(&pdev->dev, "MediaTek CQDMA driver registered\n");
 
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index f42f792db277..b84303be8edf 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -873,9 +873,9 @@ static void mmp_pdma_issue_pending(struct dma_chan *dchan)
  * Do call back
  * Start pending list
  */
-static void dma_do_tasklet(unsigned long data)
+static void dma_do_tasklet(struct tasklet_struct *t)
 {
-	struct mmp_pdma_chan *chan = (struct mmp_pdma_chan *)data;
+	struct mmp_pdma_chan *chan = from_tasklet(chan, t, tasklet);
 	struct mmp_pdma_desc_sw *desc, *_desc;
 	LIST_HEAD(chain_cleanup);
 	unsigned long flags;
@@ -993,7 +993,7 @@ static int mmp_pdma_chan_init(struct mmp_pdma_device *pdev, int idx, int irq)
 	spin_lock_init(&chan->desc_lock);
 	chan->dev = pdev->dev;
 	chan->chan.device = &pdev->device;
-	tasklet_init(&chan->tasklet, dma_do_tasklet, (unsigned long)chan);
+	tasklet_setup(&chan->tasklet, dma_do_tasklet);
 	INIT_LIST_HEAD(&chan->chain_pending);
 	INIT_LIST_HEAD(&chan->chain_running);
 
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 960c7c40aef7..a262e0eb4cc9 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -346,9 +346,9 @@ static irqreturn_t mmp_tdma_int_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 }
 
-static void dma_do_tasklet(unsigned long data)
+static void dma_do_tasklet(struct tasklet_struct *t)
 {
-	struct mmp_tdma_chan *tdmac = (struct mmp_tdma_chan *)data;
+	struct mmp_tdma_chan *tdmac = from_tasklet(tdmac, t, tasklet);
 
 	dmaengine_desc_get_callback_invoke(&tdmac->desc, NULL);
 }
@@ -586,7 +586,7 @@ static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev,
 	tdmac->pool	   = pool;
 	tdmac->status = DMA_COMPLETE;
 	tdev->tdmac[tdmac->idx] = tdmac;
-	tasklet_init(&tdmac->tasklet, dma_do_tasklet, (unsigned long)tdmac);
+	tasklet_setup(&tdmac->tasklet, dma_do_tasklet);
 
 	/* add the channel to tdma_chan list */
 	list_add_tail(&tdmac->chan.device_node,
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index dc2cae7bcf69..c1a69149c8bf 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -414,9 +414,9 @@ static void mpc_dma_process_completed(struct mpc_dma *mdma)
 }
 
 /* DMA Tasklet */
-static void mpc_dma_tasklet(unsigned long data)
+static void mpc_dma_tasklet(struct tasklet_struct *t)
 {
-	struct mpc_dma *mdma = (void *)data;
+	struct mpc_dma *mdma = from_tasklet(mdma, t, tasklet);
 	unsigned long flags;
 	uint es;
 
@@ -1009,7 +1009,7 @@ static int mpc_dma_probe(struct platform_device *op)
 		list_add_tail(&mchan->chan.device_node, &dma->channels);
 	}
 
-	tasklet_init(&mdma->tasklet, mpc_dma_tasklet, (unsigned long)mdma);
+	tasklet_setup(&mdma->tasklet, mpc_dma_tasklet);
 
 	/*
 	 * Configure DMA Engine:
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 0ac8e7b34e12..00cd1335eeba 100644
--- a/drivers/dma/mv_xor.c
+++ b/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);
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index 9225f08dfee9..2753a6b916f6 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/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);
 
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index eb60eb72632e..65f816b40c32 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -319,9 +319,9 @@ static dma_cookie_t mxs_dma_tx_submit(struct dma_async_tx_descriptor *tx)
 	return dma_cookie_assign(tx);
 }
 
-static void mxs_dma_tasklet(unsigned long data)
+static void mxs_dma_tasklet(struct tasklet_struct *t)
 {
-	struct mxs_dma_chan *mxs_chan = (struct mxs_dma_chan *) data;
+	struct mxs_dma_chan *mxs_chan = from_tasklet(mxs_chan, t, tasklet);
 
 	dmaengine_desc_get_callback_invoke(&mxs_chan->desc, NULL);
 }
@@ -811,8 +811,7 @@ static int __init mxs_dma_probe(struct platform_device *pdev)
 		mxs_chan->chan.device = &mxs_dma->dma_device;
 		dma_cookie_init(&mxs_chan->chan);
 
-		tasklet_init(&mxs_chan->tasklet, mxs_dma_tasklet,
-			     (unsigned long) mxs_chan);
+		tasklet_setup(&mxs_chan->tasklet, mxs_dma_tasklet);
 
 
 		/* Add the channel to mxs_chan list */
diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c
index ca4e0930207a..9c52c57919c6 100644
--- a/drivers/dma/nbpfaxi.c
+++ b/drivers/dma/nbpfaxi.c
@@ -1113,9 +1113,9 @@ static struct dma_chan *nbpf_of_xlate(struct of_phandle_args *dma_spec,
 	return dchan;
 }
 
-static void nbpf_chan_tasklet(unsigned long data)
+static void nbpf_chan_tasklet(struct tasklet_struct *t)
 {
-	struct nbpf_channel *chan = (struct nbpf_channel *)data;
+	struct nbpf_channel *chan = from_tasklet(chan, t, tasklet);
 	struct nbpf_desc *desc, *tmp;
 	struct dmaengine_desc_callback cb;
 
@@ -1260,7 +1260,7 @@ static int nbpf_chan_probe(struct nbpf_device *nbpf, int n)
 
 	snprintf(chan->name, sizeof(chan->name), "nbpf %d", n);
 
-	tasklet_init(&chan->tasklet, nbpf_chan_tasklet, (unsigned long)chan);
+	tasklet_setup(&chan->tasklet, nbpf_chan_tasklet);
 	ret = devm_request_irq(dma_dev->dev, chan->irq,
 			nbpf_chan_irq, IRQF_SHARED,
 			chan->name, chan);
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index e93005837e3f..1da04112fcdb 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -670,9 +670,9 @@ static int pd_device_terminate_all(struct dma_chan *chan)
 	return 0;
 }
 
-static void pdc_tasklet(unsigned long data)
+static void pdc_tasklet(struct tasklet_struct *t)
 {
-	struct pch_dma_chan *pd_chan = (struct pch_dma_chan *)data;
+	struct pch_dma_chan *pd_chan = from_tasklet(pd_chan, t, tasklet);
 	unsigned long flags;
 
 	if (!pdc_is_idle(pd_chan)) {
@@ -882,8 +882,7 @@ static int pch_dma_probe(struct pci_dev *pdev,
 		INIT_LIST_HEAD(&pd_chan->queue);
 		INIT_LIST_HEAD(&pd_chan->free_list);
 
-		tasklet_init(&pd_chan->tasklet, pdc_tasklet,
-			     (unsigned long)pd_chan);
+		tasklet_setup(&pd_chan->tasklet, pdc_tasklet);
 		list_add_tail(&pd_chan->chan.device_node, &pd->dma.channels);
 	}
 
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 000c3c4b4f7a..e9f0101d92fa 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1573,9 +1573,9 @@ static void dma_pl330_rqcb(struct dma_pl330_desc *desc, enum pl330_op_err err)
 	tasklet_schedule(&pch->task);
 }
 
-static void pl330_dotask(unsigned long data)
+static void pl330_dotask(struct tasklet_struct *t)
 {
-	struct pl330_dmac *pl330 = (struct pl330_dmac *) data;
+	struct pl330_dmac *pl330 = from_tasklet(pl330, t, tasks);
 	unsigned long flags;
 	int i;
 
@@ -1979,7 +1979,7 @@ static int pl330_add(struct pl330_dmac *pl330)
 		return ret;
 	}
 
-	tasklet_init(&pl330->tasks, pl330_dotask, (unsigned long) pl330);
+	tasklet_setup(&pl330->tasks, pl330_dotask);
 
 	pl330->state = INIT;
 
@@ -2062,9 +2062,9 @@ static inline void fill_queue(struct dma_pl330_chan *pch)
 	}
 }
 
-static void pl330_tasklet(unsigned long data)
+static void pl330_tasklet(struct tasklet_struct *t)
 {
-	struct dma_pl330_chan *pch = (struct dma_pl330_chan *)data;
+	struct dma_pl330_chan *pch = from_tasklet(pch, t, task);
 	struct dma_pl330_desc *desc, *_dt;
 	unsigned long flags;
 	bool power_down = false;
@@ -2172,7 +2172,7 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan)
 		return -ENOMEM;
 	}
 
-	tasklet_init(&pch->task, pl330_tasklet, (unsigned long) pch);
+	tasklet_setup(&pch->task, pl330_tasklet);
 
 	spin_unlock_irqrestore(&pl330->lock, flags);
 
@@ -2484,7 +2484,7 @@ static void pl330_issue_pending(struct dma_c