lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-Id: <20221214235438.30271-8-ansuelsmth@gmail.com> Date: Thu, 15 Dec 2022 00:54:34 +0100 From: Christian Marangi <ansuelsmth@...il.com> To: Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, Vladimir Oltean <olteanv@...il.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Jonathan Corbet <corbet@....net>, Pavel Machek <pavel@....cz>, Christian Marangi <ansuelsmth@...il.com>, "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, John Crispin <john@...ozen.org>, netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, linux-leds@...r.kernel.org, Tim Harvey <tharvey@...eworks.com>, Alexander Stein <alexander.stein@...tq-group.com>, Rasmus Villemoes <rasmus.villemoes@...vas.dk> Subject: [PATCH v7 07/11] leds: trigger: netdev: use mutex instead of spinlocks Some LEDs may require to sleep to apply their hardware rules. Convert to mutex lock to fix warning for sleeping under spinlock softirq. Signed-off-by: Christian Marangi <ansuelsmth@...il.com> --- drivers/leds/trigger/ledtrig-netdev.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c index ed019cb5867c..a471e0cde836 100644 --- a/drivers/leds/trigger/ledtrig-netdev.c +++ b/drivers/leds/trigger/ledtrig-netdev.c @@ -20,7 +20,7 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/netdevice.h> -#include <linux/spinlock.h> +#include <linux/mutex.h> #include <linux/timer.h> #include "../leds.h" @@ -38,7 +38,7 @@ struct led_netdev_data { enum led_blink_modes blink_mode; - spinlock_t lock; + struct mutex lock; struct delayed_work work; struct notifier_block notifier; @@ -183,9 +183,9 @@ static ssize_t device_name_show(struct device *dev, struct led_netdev_data *trigger_data = led_trigger_get_drvdata(dev); ssize_t len; - spin_lock_bh(&trigger_data->lock); + mutex_lock(&trigger_data->lock); len = sprintf(buf, "%s\n", trigger_data->device_name); - spin_unlock_bh(&trigger_data->lock); + mutex_unlock(&trigger_data->lock); return len; } @@ -206,7 +206,7 @@ static ssize_t device_name_store(struct device *dev, cancel_delayed_work_sync(&trigger_data->work); - spin_lock_bh(&trigger_data->lock); + mutex_lock(&trigger_data->lock); if (trigger_data->net_dev) { dev_put(trigger_data->net_dev); @@ -231,7 +231,7 @@ static ssize_t device_name_store(struct device *dev, trigger_data->net_dev = old_net; memcpy(trigger_data->device_name, old_device_name, IFNAMSIZ); - spin_unlock_bh(&trigger_data->lock); + mutex_unlock(&trigger_data->lock); return -EINVAL; } @@ -242,7 +242,7 @@ static ssize_t device_name_store(struct device *dev, trigger_data->last_activity = 0; set_baseline_state(trigger_data); - spin_unlock_bh(&trigger_data->lock); + mutex_unlock(&trigger_data->lock); return size; } @@ -400,7 +400,7 @@ static int netdev_trig_notify(struct notifier_block *nb, cancel_delayed_work_sync(&trigger_data->work); - spin_lock_bh(&trigger_data->lock); + mutex_lock(&trigger_data->lock); trigger_data->carrier_link_up = false; switch (evt) { @@ -423,7 +423,7 @@ static int netdev_trig_notify(struct notifier_block *nb, set_baseline_state(trigger_data); - spin_unlock_bh(&trigger_data->lock); + mutex_unlock(&trigger_data->lock); return NOTIFY_DONE; } @@ -484,7 +484,7 @@ static int netdev_trig_activate(struct led_classdev *led_cdev) if (!trigger_data) return -ENOMEM; - spin_lock_init(&trigger_data->lock); + mutex_init(&trigger_data->lock); trigger_data->notifier.notifier_call = netdev_trig_notify; trigger_data->notifier.priority = 10; -- 2.37.2
Powered by blists - more mailing lists