linux-kernel - [PATCH v2 24/31] tracing/osnoise: Switch to use hrtimer

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Message-Id: <ff8e6e11df5f928b2b97619ac847b4fa045376a1.1738746821.git.namcao@linutronix.de>
Date: Wed,  5 Feb 2025 11:39:08 +0100
From: Nam Cao <namcao@...utronix.de>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [PATCH v2 24/31] tracing/osnoise: 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.

Acked-by: Steven Rostedt (Google) <rostedt@...dmis.org>
Signed-off-by: Nam Cao <namcao@...utronix.de>
---
 kernel/trace/trace_osnoise.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index f3a2722ee4c0..15999532956a 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1901,8 +1901,7 @@ static int timerlat_main(void *data)
 	tlat->count = 0;
 	tlat->tracing_thread = false;
 
-	hrtimer_init(&tlat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	tlat->timer.function = timerlat_irq;
+	hrtimer_setup(&tlat->timer, timerlat_irq, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
 	tlat->kthread = current;
 	osn_var->pid = current->pid;
 	/*
@@ -2456,8 +2455,7 @@ static int timerlat_fd_open(struct inode *inode, struct file *file)
 	tlat = this_cpu_tmr_var();
 	tlat->count = 0;
 
-	hrtimer_init(&tlat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	tlat->timer.function = timerlat_irq;
+	hrtimer_setup(&tlat->timer, timerlat_irq, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
 
 	migrate_enable();
 	return 0;
-- 
2.39.5