netdev - [net-next v3 14/20] net: micrel: convert tasklets to use new tasklet

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Message-Id: <20200914072939.803280-15-allen.lkml@gmail.com>
Date:   Mon, 14 Sep 2020 12:59:33 +0530
From:   Allen Pais <allen.lkml@...il.com>
To:     davem@...emloft.net
Cc:     jes@...ined-monkey.org, kuba@...nel.org, dougmill@...ux.ibm.com,
        cooldavid@...ldavid.org, mlindner@...vell.com,
        stephen@...workplumber.org, borisp@...lanox.com,
        netdev@...r.kernel.org, Allen Pais <apais@...ux.microsoft.com>,
        Romain Perier <romain.perier@...il.com>
Subject: [net-next v3 14/20] net: micrel: convert tasklets to use new tasklet_setup() API

From: Allen Pais <apais@...ux.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@...il.com>
Signed-off-by: Allen Pais <apais@...ux.microsoft.com>
---
 drivers/net/ethernet/micrel/ks8842.c  | 17 ++++++++---------
 drivers/net/ethernet/micrel/ksz884x.c | 14 ++++++--------
 2 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c
index f3f6dfe3eddc..caa251d0e381 100644
--- a/drivers/net/ethernet/micrel/ks8842.c
+++ b/drivers/net/ethernet/micrel/ks8842.c
@@ -587,10 +587,10 @@ static int __ks8842_start_new_rx_dma(struct net_device *netdev)
 	return err;
 }
 
-static void ks8842_rx_frame_dma_tasklet(unsigned long arg)
+static void ks8842_rx_frame_dma_tasklet(struct tasklet_struct *t)
 {
-	struct net_device *netdev = (struct net_device *)arg;
-	struct ks8842_adapter *adapter = netdev_priv(netdev);
+	struct ks8842_adapter *adapter = from_tasklet(adapter, t, dma_rx.tasklet);
+	struct net_device *netdev = adapter->netdev;
 	struct ks8842_rx_dma_ctl *ctl = &adapter->dma_rx;
 	struct sk_buff *skb = ctl->skb;
 	dma_addr_t addr = sg_dma_address(&ctl->sg);
@@ -720,10 +720,10 @@ static void ks8842_handle_rx_overrun(struct net_device *netdev,
 	netdev->stats.rx_fifo_errors++;
 }
 
-static void ks8842_tasklet(unsigned long arg)
+static void ks8842_tasklet(struct tasklet_struct *t)
 {
-	struct net_device *netdev = (struct net_device *)arg;
-	struct ks8842_adapter *adapter = netdev_priv(netdev);
+	struct ks8842_adapter *adapter = from_tasklet(adapter, t, tasklet);
+	struct net_device *netdev = adapter->netdev;
 	u16 isr;
 	unsigned long flags;
 	u16 entry_bank;
@@ -953,8 +953,7 @@ static int ks8842_alloc_dma_bufs(struct net_device *netdev)
 		goto err;
 	}
 
-	tasklet_init(&rx_ctl->tasklet, ks8842_rx_frame_dma_tasklet,
-		(unsigned long)netdev);
+	tasklet_setup(&rx_ctl->tasklet, ks8842_rx_frame_dma_tasklet);
 
 	return 0;
 err:
@@ -1173,7 +1172,7 @@ static int ks8842_probe(struct platform_device *pdev)
 		adapter->dma_tx.channel = -1;
 	}
 
-	tasklet_init(&adapter->tasklet, ks8842_tasklet, (unsigned long)netdev);
+	tasklet_setup(&adapter->tasklet, ks8842_tasklet);
 	spin_lock_init(&adapter->lock);
 
 	netdev->netdev_ops = &ks8842_netdev_ops;
diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index bb646b65cc95..5130507bbf54 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -5159,9 +5159,9 @@ static int dev_rcv_special(struct dev_info *hw_priv)
 	return received;
 }
 
-static void rx_proc_task(unsigned long data)
+static void rx_proc_task(struct tasklet_struct *t)
 {
-	struct dev_info *hw_priv = (struct dev_info *) data;
+	struct dev_info *hw_priv = from_tasklet(hw_priv, t, rx_tasklet);
 	struct ksz_hw *hw = &hw_priv->hw;
 
 	if (!hw->enabled)
@@ -5181,9 +5181,9 @@ static void rx_proc_task(unsigned long data)
 	}
 }
 
-static void tx_proc_task(unsigned long data)
+static void tx_proc_task(struct tasklet_struct *t)
 {
-	struct dev_info *hw_priv = (struct dev_info *) data;
+	struct dev_info *hw_priv = from_tasklet(hw_priv, t, tx_tasklet);
 	struct ksz_hw *hw = &hw_priv->hw;
 
 	hw_ack_intr(hw, KS884X_INT_TX_MASK);
@@ -5436,10 +5436,8 @@ static int prepare_hardware(struct net_device *dev)
 	rc = request_irq(dev->irq, netdev_intr, IRQF_SHARED, dev->name, dev);
 	if (rc)
 		return rc;
-	tasklet_init(&hw_priv->rx_tasklet, rx_proc_task,
-		     (unsigned long) hw_priv);
-	tasklet_init(&hw_priv->tx_tasklet, tx_proc_task,
-		     (unsigned long) hw_priv);
+	tasklet_setup(&hw_priv->rx_tasklet, rx_proc_task);
+	tasklet_setup(&hw_priv->tx_tasklet, tx_proc_task);
 
 	hw->promiscuous = 0;
 	hw->all_multi = 0;
-- 
2.25.1