linux-kernel - [PATCH v2 08/45] serial: 8250: Switch to use hrtimer

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Message-Id: <991926d130cc272df30d226760d5d74187991669.1738746904.git.namcao@linutronix.de>
Date: Wed,  5 Feb 2025 11:45:56 +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>,
	Zack Rusin <zack.rusin@...adcom.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v2 08/45] serial: 8250: 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: Zack Rusin <zack.rusin@...adcom.com>
Signed-off-by: Nam Cao <namcao@...utronix.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/tty/serial/8250/8250_bcm7271.c |  3 +--
 drivers/tty/serial/8250/8250_port.c    | 10 ++++------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c
index d0b18358859e..742004d63c6f 100644
--- a/drivers/tty/serial/8250/8250_bcm7271.c
+++ b/drivers/tty/serial/8250/8250_bcm7271.c
@@ -1056,8 +1056,7 @@ static int brcmuart_probe(struct platform_device *pdev)
 	}
 
 	/* setup HR timer */
-	hrtimer_init(&priv->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	priv->hrt.function = brcmuart_hrtimer_func;
+	hrtimer_setup(&priv->hrt, brcmuart_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	up.port.shutdown = brcmuart_shutdown;
 	up.port.startup = brcmuart_startup;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index d7976a21cca9..253bf5c756de 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -566,12 +566,10 @@ static int serial8250_em485_init(struct uart_8250_port *p)
 	if (!p->em485)
 		return -ENOMEM;
 
-	hrtimer_init(&p->em485->stop_tx_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	hrtimer_init(&p->em485->start_tx_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	p->em485->stop_tx_timer.function = &serial8250_em485_handle_stop_tx;
-	p->em485->start_tx_timer.function = &serial8250_em485_handle_start_tx;
+	hrtimer_setup(&p->em485->stop_tx_timer, &serial8250_em485_handle_stop_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&p->em485->start_tx_timer, &serial8250_em485_handle_start_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	p->em485->port = p;
 	p->em485->active_timer = NULL;
 	p->em485->tx_stopped = true;
-- 
2.39.5