From 3f9d9725cb7daf7e9a834aa4f24d88b049c3c1f5 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 16 Jun 2021 21:28:05 +0200
Subject: [PATCH] mac80211: don't open-code LED manipulations
We shouldn't open-code led_trigger_blink() or led_trigger_event(),
use them instead of badly open-coding them. This also fixes the
locking, led_trigger_blink() and led_trigger_event() now use
read_lock_irqsave().
Link: https://lore.kernel.org/r/20210616212804.b19ba1c60353.I8ea1b4defd5e12fc20ef281291e602feeec336a6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
net/mac80211/led.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/net/mac80211/led.c b/net/mac80211/led.c
index b275c8853074b..6de8d0ad54973 100644
--- a/net/mac80211/led.c
+++ b/net/mac80211/led.c
@@ -259,7 +259,6 @@ static void tpt_trig_timer(struct timer_list *t)
{
struct tpt_led_trigger *tpt_trig = from_timer(tpt_trig, t, timer);
struct ieee80211_local *local = tpt_trig->local;
- struct led_classdev *led_cdev;
unsigned long on, off, tpt;
int i;
@@ -283,10 +282,7 @@ static void tpt_trig_timer(struct timer_list *t)
}
}
- read_lock(&local->tpt_led.leddev_list_lock);
- list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list)
- led_blink_set(led_cdev, &on, &off);
- read_unlock(&local->tpt_led.leddev_list_lock);
+ led_trigger_blink(&local->tpt_led, &on, &off);
}
const char *
@@ -341,7 +337,6 @@ static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
{
struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
- struct led_classdev *led_cdev;
if (!tpt_trig->running)
return;
@@ -349,10 +344,7 @@ static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
tpt_trig->running = false;
del_timer_sync(&tpt_trig->timer);
- read_lock(&local->tpt_led.leddev_list_lock);
- list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list)
- led_set_brightness(led_cdev, LED_OFF);
- read_unlock(&local->tpt_led.leddev_list_lock);
+ led_trigger_event(&local->tpt_led, LED_OFF);
}
void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
--
2.30.2