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leds: Convert timers to use timer_setup() 

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Willy Tarreau <w@1wt.eu>
Cc: linux-leds@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This commit is contained in:
Kees Cook 2017-10-25 03:30:01 -07:00 committed by Jacek Anaszewski
parent 3f3d60d625
commit 49404665b9
3 changed files with 18 additions and 15 deletions
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7
drivers/leds/led-core.c
View File

@ -45,9 +45,9 @@ static int __led_set_brightness_blocking(struct led_classdev *led_cdev,
return led_cdev->brightness_set_blocking(led_cdev, value);
}
static void led_timer_function(unsigned long data)
static void led_timer_function(struct timer_list *t)
{
struct led_classdev *led_cdev = (void *)data;
struct led_classdev *led_cdev = from_timer(led_cdev, t, blink_timer);
unsigned long brightness;
unsigned long delay;
@ -178,8 +178,7 @@ void led_init_core(struct led_classdev *led_cdev)
{
INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);
setup_timer(&led_cdev->blink_timer, led_timer_function,
(unsigned long)led_cdev);
timer_setup(&led_cdev->blink_timer, led_timer_function, 0);
}
EXPORT_SYMBOL_GPL(led_init_core);

14
drivers/leds/trigger/ledtrig-activity.c
View File

@ -24,6 +24,7 @@ static int panic_detected;
struct activity_data {
struct timer_list timer;
struct led_classdev *led_cdev;
u64 last_used;
u64 last_boot;
int time_left;
@ -31,10 +32,11 @@ struct activity_data {
int invert;
};
static void led_activity_function(unsigned long data)
static void led_activity_function(struct timer_list *t)
{
struct led_classdev *led_cdev = (struct led_classdev *)data;
struct activity_data *activity_data = led_cdev->trigger_data;
struct activity_data *activity_data = from_timer(activity_data, t,
timer);
struct led_classdev *led_cdev = activity_data->led_cdev;
struct timespec boot_time;
unsigned int target;
unsigned int usage;
@ -195,11 +197,11 @@ static void activity_activate(struct led_classdev *led_cdev)
return;
}
setup_timer(&activity_data->timer,
led_activity_function, (unsigned long)led_cdev);
activity_data->led_cdev = led_cdev;
timer_setup(&activity_data->timer, led_activity_function, 0);
if (!led_cdev->blink_brightness)
led_cdev->blink_brightness = led_cdev->max_brightness;
led_activity_function(activity_data->timer.data);
led_activity_function(&activity_data->timer);
set_bit(LED_BLINK_SW, &led_cdev->work_flags);
led_cdev->activated = true;
}

12
drivers/leds/trigger/ledtrig-transient.c
View File

@ -33,12 +33,14 @@ struct transient_trig_data {
int restore_state;
unsigned long duration;
struct timer_list timer;
struct led_classdev *led_cdev;
};
static void transient_timer_function(unsigned long data)
static void transient_timer_function(struct timer_list *t)
{
struct led_classdev *led_cdev = (struct led_classdev *) data;
struct transient_trig_data *transient_data = led_cdev->trigger_data;
struct transient_trig_data *transient_data =
from_timer(transient_data, t, timer);
struct led_classdev *led_cdev = transient_data->led_cdev;
transient_data->activate = 0;
led_set_brightness_nosleep(led_cdev, transient_data->restore_state);
@ -169,6 +171,7 @@ static void transient_trig_activate(struct led_classdev *led_cdev)
return;
}
led_cdev->trigger_data = tdata;
tdata->led_cdev = led_cdev;
rc = device_create_file(led_cdev->dev, &dev_attr_activate);
if (rc)
@ -182,8 +185,7 @@ static void transient_trig_activate(struct led_classdev *led_cdev)
if (rc)
goto err_out_state;
setup_timer(&tdata->timer, transient_timer_function,
(unsigned long) led_cdev);
timer_setup(&tdata->timer, transient_timer_function, 0);
led_cdev->activated = true;
return;