diff options
| author | Kees Cook <keescook@chromium.org> | 2017-10-04 17:54:21 -0700 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-11-05 13:53:14 +0200 |
| commit | fbc15e30400c9d927eda37445c78a7811a68e4a7 (patch) | |
| tree | af6579ded2ec9eee78bfdf595c00b5e510f30bb5 /drivers/platform/x86/intel_ips.c | |
| parent | e4a18052bb99e25d2c0074981120b76638285c22 (diff) | |
| download | lwn-fbc15e30400c9d927eda37445c78a7811a68e4a7.tar.gz lwn-fbc15e30400c9d927eda37445c78a7811a68e4a7.zip | |
platform/x86: intel_ips: 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. Moves timer structure off stack and
into struct ips_driver.
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/intel_ips.c')
| -rw-r--r-- | drivers/platform/x86/intel_ips.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c index 680ab4fd7087..a0c95853fd3f 100644 --- a/drivers/platform/x86/intel_ips.c +++ b/drivers/platform/x86/intel_ips.c @@ -296,6 +296,7 @@ struct ips_driver { struct task_struct *monitor; struct task_struct *adjust; struct dentry *debug_root; + struct timer_list timer; /* Average CPU core temps (all averages in .01 degrees C for precision) */ u16 ctv1_avg_temp; @@ -937,9 +938,10 @@ static u32 calc_avg_power(struct ips_driver *ips, u32 *array) return avg; } -static void monitor_timeout(unsigned long arg) +static void monitor_timeout(struct timer_list *t) { - wake_up_process((struct task_struct *)arg); + struct ips_driver *ips = from_timer(ips, t, timer); + wake_up_process(ips->monitor); } /** @@ -956,7 +958,6 @@ static void monitor_timeout(unsigned long arg) static int ips_monitor(void *data) { struct ips_driver *ips = data; - struct timer_list timer; unsigned long seqno_timestamp, expire, last_msecs, last_sample_period; int i; u32 *cpu_samples, *mchp_samples, old_cpu_power; @@ -1044,8 +1045,7 @@ static int ips_monitor(void *data) schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); last_sample_period = IPS_SAMPLE_PERIOD; - setup_deferrable_timer_on_stack(&timer, monitor_timeout, - (unsigned long)current); + timer_setup(&ips->timer, monitor_timeout, TIMER_DEFERRABLE); do { u32 cpu_val, mch_val; u16 val; @@ -1103,7 +1103,7 @@ static int ips_monitor(void *data) expire = jiffies + msecs_to_jiffies(IPS_SAMPLE_PERIOD); __set_current_state(TASK_INTERRUPTIBLE); - mod_timer(&timer, expire); + mod_timer(&ips->timer, expire); schedule(); /* Calculate actual sample period for power averaging */ @@ -1112,8 +1112,7 @@ static int ips_monitor(void *data) last_sample_period = 1; } while (!kthread_should_stop()); - del_timer_sync(&timer); - destroy_timer_on_stack(&timer); + del_timer_sync(&ips->timer); dev_dbg(ips->dev, "ips-monitor thread stopped\n"); |