timer: Remove last user of TIMER_INITIALIZER

Drops the last user of TIMER_INITIALIZER and adapts timer.h to use the
internal version.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Petr Mladek <pmladek@suse.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux1394-devel@lists.sourceforge.net
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-s390@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: Mark Gross <mark.gross@intel.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ursula Braun <ubraun@linux.vnet.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Harish Patil <harish.patil@cavium.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Reed <mdr@sgi.com>
Cc: Manish Chopra <manish.chopra@cavium.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-pm@vger.kernel.org
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: netdev@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lkml.kernel.org/r/1507159627-127660-8-git-send-email-keescook@chromium.org

drivers/char/tlclk.c

@@ -184,9 +184,8 @@ static unsigned int telclk_interrupt;
 static int int_events;		/* Event that generate a interrupt */
 static int got_event;		/* if events processing have been done */
 
-static void switchover_timeout(unsigned long data);
-static struct timer_list switchover_timer =
-	TIMER_INITIALIZER(switchover_timeout , 0, 0);
+static void switchover_timeout(struct timer_list *t);
+static struct timer_list switchover_timer;
 static unsigned long tlclk_timer_data;
 
 static struct tlclk_alarms *alarm_events;
@@ -805,7 +804,7 @@ static int __init tlclk_init(void)
 		goto out3;
 	}
 
-	init_timer(&switchover_timer);
+	timer_setup(&switchover_timer, switchover_timeout, 0);
 
 	ret = misc_register(&tlclk_miscdev);
 	if (ret < 0) {
@@ -855,9 +854,9 @@ static void __exit tlclk_cleanup(void)
 
 }
 
-static void switchover_timeout(unsigned long data)
+static void switchover_timeout(struct timer_list *unused)
 {
-	unsigned long flags = *(unsigned long *) data;
+	unsigned long flags = tlclk_timer_data;
 
 	if ((flags & 1)) {
 		if ((inb(TLCLK_REG1) & 0x08) != (flags & 0x08))
@@ -922,7 +921,6 @@ static irqreturn_t tlclk_interrupt(int irq, void *dev_id)
 		/* TIMEOUT in ~10ms */
 		switchover_timer.expires = jiffies + msecs_to_jiffies(10);
 		tlclk_timer_data = inb(TLCLK_REG1);
-		switchover_timer.data = (unsigned long) &tlclk_timer_data;
 		mod_timer(&switchover_timer, switchover_timer.expires);
 	} else {
 		got_event = 1;

include/linux/timer.h

@@ -87,7 +87,7 @@ struct timer_list {
 
 #define DEFINE_TIMER(_name, _function, _expires, _data)		\
 	struct timer_list _name =				\
-		TIMER_INITIALIZER(_function, _expires, _data)
+		__TIMER_INITIALIZER(_function, _expires, _data, 0)
 
 void init_timer_key(struct timer_list *timer, unsigned int flags,
 		    const char *name, struct lock_class_key *key);