netdev - [PATCH v2 01/20] ethernet: alteon: convert tasklets to use new tasklet

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Date:   Wed,  9 Sep 2020 14:14:51 +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 <allen.lkml@...il.com>,
        Romain Perier <romain.perier@...il.com>
Subject: [PATCH v2 01/20] ethernet: alteon: 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 <romain.perier@...il.com>
Signed-off-by: Allen Pais <allen.lkml@...il.com>
---
 drivers/net/ethernet/alteon/acenic.c | 9 +++++----
 drivers/net/ethernet/alteon/acenic.h | 2 +-
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
index 8470c836fa18..056afc8bb519 100644
--- a/drivers/net/ethernet/alteon/acenic.c
+++ b/drivers/net/ethernet/alteon/acenic.c
@@ -1562,10 +1562,11 @@ static void ace_watchdog(struct net_device *data, unsigned int txqueue)
 }
 
 
-static void ace_tasklet(unsigned long arg)
+static void ace_tasklet(struct tasklet_struct *t)
 {
-	struct net_device *dev = (struct net_device *) arg;
-	struct ace_private *ap = netdev_priv(dev);
+	struct ace_private *ap = from_tasklet(ap, t, ace_tasklet);
+	struct net_device *dev = (struct net_device *)((char *)ap -
+				ALIGN(sizeof(struct net_device), NETDEV_ALIGN));
 	int cur_size;
 
 	cur_size = atomic_read(&ap->cur_rx_bufs);
@@ -2269,7 +2270,7 @@ static int ace_open(struct net_device *dev)
 	/*
 	 * Setup the bottom half rx ring refill handler
 	 */
-	tasklet_init(&ap->ace_tasklet, ace_tasklet, (unsigned long)dev);
+	tasklet_setup(&ap->ace_tasklet, ace_tasklet);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/alteon/acenic.h b/drivers/net/ethernet/alteon/acenic.h
index c670067b1541..4b02c705859c 100644
--- a/drivers/net/ethernet/alteon/acenic.h
+++ b/drivers/net/ethernet/alteon/acenic.h
@@ -776,7 +776,7 @@ static int ace_open(struct net_device *dev);
 static netdev_tx_t ace_start_xmit(struct sk_buff *skb,
 				  struct net_device *dev);
 static int ace_close(struct net_device *dev);
-static void ace_tasklet(unsigned long dev);
+static void ace_tasklet(struct tasklet_struct *t);
 static void ace_dump_trace(struct ace_private *ap);
 static void ace_set_multicast_list(struct net_device *dev);
 static int ace_change_mtu(struct net_device *dev, int new_mtu);
-- 
2.25.1