misc: vcpu_stall_detector: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Zack Rusin <[email protected]>
Link: https://lore.kernel.org/all/a1c984288c6e47d956c07339ced486a8ec95f8d5.1738746904.git.namcao@linutronix.de

Author: covanam

drivers/misc/vcpu_stall_detector.c

@@ -111,8 +111,7 @@ static int start_stall_detector_cpu(unsigned int cpu)
 	ping_timeout_ms = vcpu_stall_config.stall_timeout_sec *
 			  MSEC_PER_SEC / 2;
 
-	hrtimer_init(vcpu_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	vcpu_hrtimer->function = vcpu_stall_detect_timer_fn;
+	hrtimer_setup(vcpu_hrtimer, vcpu_stall_detect_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	vcpu_stall_detector->is_initialized = true;
 
 	hrtimer_start(vcpu_hrtimer, ms_to_ktime(ping_timeout_ms),