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Subject[PATCH v2 22/31] sparc/led: Use separate static data field with with static timer
Date
In preparation for changing the timer callback argument to the timer
pointer, move to a separate static data variable.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Geliang Tang <geliangtang@gmail.com>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
arch/sparc/kernel/led.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index e278bf52963b..382860e482e0 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -31,19 +31,20 @@ static inline void led_toggle(void)
}

static struct timer_list led_blink_timer;
+static unsigned long led_blink_timer_timeout;

-static void led_blink(unsigned long timeout)
+static void led_blink(unsigned long unused)
{
+ unsigned long timeout = led_blink_timer_timeout;
+
led_toggle();

/* reschedule */
if (!timeout) { /* blink according to load */
led_blink_timer.expires = jiffies +
((1 + (avenrun[0] >> FSHIFT)) * HZ);
- led_blink_timer.data = 0;
} else { /* blink at user specified interval */
led_blink_timer.expires = jiffies + (timeout * HZ);
- led_blink_timer.data = timeout;
}
add_timer(&led_blink_timer);
}
@@ -88,8 +89,10 @@ static ssize_t led_proc_write(struct file *file, const char __user *buffer,
} else if (!strcmp(buf, "toggle")) {
led_toggle();
} else if ((*buf > '0') && (*buf <= '9')) {
- led_blink(simple_strtoul(buf, NULL, 10));
+ led_blink_timer_timeout = simple_strtoul(buf, NULL, 10);
+ led_blink(0);
} else if (!strcmp(buf, "load")) {
+ led_blink_timer_timeout = 0;
led_blink(0);
} else {
auxio_set_led(AUXIO_LED_OFF);
@@ -115,8 +118,7 @@ static struct proc_dir_entry *led;

static int __init led_init(void)
{
- init_timer(&led_blink_timer);
- led_blink_timer.function = led_blink;
+ setup_timer(&led_blink_timer, led_blink, 0);

led = proc_create("led", 0, NULL, &led_proc_fops);
if (!led)
--
2.7.4
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