linux-kernel - [PATCH 23/31] mips/sgi-ip32: Use separate static data field with with static timer

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Message-Id: <1504222183-61202-24-git-send-email-keescook@chromium.org>
Date:   Thu, 31 Aug 2017 16:29:35 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Kees Cook <keescook@...omium.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Ingo Molnar <mingo@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org
Subject: [PATCH 23/31] mips/sgi-ip32: Use separate static data field with with static timer

In preparation for changing the timer callback argument to the timer
pointer, move to a separate static data variable.

Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: linux-mips@...ux-mips.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 arch/mips/sgi-ip32/ip32-reset.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index 4e263fd4deff..6636a9c686cd 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -38,6 +38,7 @@
 extern struct platform_device ip32_rtc_device;
 
 static struct timer_list power_timer, blink_timer;
+static unsigned long blink_timer_timeout;
 static int has_panicked, shutting_down;
 
 static __noreturn void ip32_poweroff(void *data)
@@ -71,11 +72,11 @@ static void ip32_machine_restart(char *cmd)
 	unreachable();
 }
 
-static void blink_timeout(unsigned long data)
+static void blink_timeout(unsigned long unused)
 {
 	unsigned long led = mace->perif.ctrl.misc ^ MACEISA_LED_RED;
 	mace->perif.ctrl.misc = led;
-	mod_timer(&blink_timer, jiffies + data);
+	mod_timer(&blink_timer, jiffies + blink_timer_timeout);
 }
 
 static void ip32_machine_halt(void)
@@ -99,8 +100,8 @@ void ip32_prepare_poweroff(void)
 	}
 
 	shutting_down = 1;
-	blink_timer.data = POWERDOWN_FREQ;
-	blink_timeout(POWERDOWN_FREQ);
+	blink_timer_timeout = POWERDOWN_FREQ;
+	blink_timeout(0);
 
 	setup_timer(&power_timer, power_timeout, 0UL);
 	power_timer.expires = jiffies + POWERDOWN_TIMEOUT * HZ;
@@ -120,8 +121,8 @@ static int panic_event(struct notifier_block *this, unsigned long event,
 	led = mace->perif.ctrl.misc | MACEISA_LED_GREEN;
 	mace->perif.ctrl.misc = led;
 
-	blink_timer.data = PANIC_FREQ;
-	blink_timeout(PANIC_FREQ);
+	blink_timer_timeout = PANIC_FREQ;
+	blink_timeout(0);
 
 	return NOTIFY_DONE;
 }
@@ -142,8 +143,7 @@ static __init int ip32_reboot_setup(void)
 	_machine_halt = ip32_machine_halt;
 	pm_power_off = ip32_machine_halt;
 
-	init_timer(&blink_timer);
-	blink_timer.function = blink_timeout;
+	setup_timer(&blink_timer, blink_timeout, 0);
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 
 	return 0;
-- 
2.7.4