char: ipmi: 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@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Message-Id: <20200817091617.28119-3-allen.cryptic@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>

drivers/char/ipmi/ipmi_msghandler.c

@@ -39,7 +39,7 @@
 
 static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void);
 static int ipmi_init_msghandler(void);
-static void smi_recv_tasklet(unsigned long);
+static void smi_recv_tasklet(struct tasklet_struct *t);
 static void handle_new_recv_msgs(struct ipmi_smi *intf);
 static void need_waiter(struct ipmi_smi *intf);
 static int handle_one_recv_msg(struct ipmi_smi *intf,
@@ -3430,9 +3430,8 @@ int ipmi_add_smi(struct module         *owner,
 	intf->curr_seq = 0;
 	spin_lock_init(&intf->waiting_rcv_msgs_lock);
 	INIT_LIST_HEAD(&intf->waiting_rcv_msgs);
-	tasklet_init(&intf->recv_tasklet,
-		     smi_recv_tasklet,
-		     (unsigned long) intf);
+	tasklet_setup(&intf->recv_tasklet,
+		     smi_recv_tasklet);
 	atomic_set(&intf->watchdog_pretimeouts_to_deliver, 0);
 	spin_lock_init(&intf->xmit_msgs_lock);
 	INIT_LIST_HEAD(&intf->xmit_msgs);
@@ -4467,10 +4466,10 @@ static void handle_new_recv_msgs(struct ipmi_smi *intf)
 	}
 }
 
-static void smi_recv_tasklet(unsigned long val)
+static void smi_recv_tasklet(struct tasklet_struct *t)
 {
 	unsigned long flags = 0; /* keep us warning-free. */
-	struct ipmi_smi *intf = (struct ipmi_smi *) val;
+	struct ipmi_smi *intf = from_tasklet(intf, t, recv_tasklet);
 	int run_to_completion = intf->run_to_completion;
 	struct ipmi_smi_msg *newmsg = NULL;
 
@@ -4542,7 +4541,7 @@ void ipmi_smi_msg_received(struct ipmi_smi *intf,
 		spin_unlock_irqrestore(&intf->xmit_msgs_lock, flags);
 
 	if (run_to_completion)
-		smi_recv_tasklet((unsigned long) intf);
+		smi_recv_tasklet(&intf->recv_tasklet);
 	else
 		tasklet_schedule(&intf->recv_tasklet);
 }