netdev - [PATCH net-next 1/2] can: rcar_can: Convert to DEFINE_SIMPLE_DEV_PM

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Message-ID: <20250711101706.2822687-2-mkl@pengutronix.de>
Date: Fri, 11 Jul 2025 12:15:08 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 1/2] can: rcar_can: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

From: Geert Uytterhoeven <geert+renesas@...der.be>

Convert the Renesas R-Car CAN driver from SIMPLE_DEV_PM_OPS() to
DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr().  This lets us drop the
__maybe_unused annotations from its suspend and resume callbacks, and
reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Link: https://patch.msgid.link/6ffe085f6e2548f53674dd11704b388cf4b303e9.1752086078.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/rcar/rcar_can.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index 2b7dd359f27b..64e664f5adcc 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -834,7 +834,7 @@ static void rcar_can_remove(struct platform_device *pdev)
 	free_candev(ndev);
 }
 
-static int __maybe_unused rcar_can_suspend(struct device *dev)
+static int rcar_can_suspend(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct rcar_can_priv *priv = netdev_priv(ndev);
@@ -857,7 +857,7 @@ static int __maybe_unused rcar_can_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused rcar_can_resume(struct device *dev)
+static int rcar_can_resume(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct rcar_can_priv *priv = netdev_priv(ndev);
@@ -886,7 +886,8 @@ static int __maybe_unused rcar_can_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(rcar_can_pm_ops, rcar_can_suspend, rcar_can_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(rcar_can_pm_ops, rcar_can_suspend,
+				rcar_can_resume);
 
 static const struct of_device_id rcar_can_of_table[] __maybe_unused = {
 	{ .compatible = "renesas,can-r8a7778" },
@@ -904,7 +905,7 @@ static struct platform_driver rcar_can_driver = {
 	.driver = {
 		.name = RCAR_CAN_DRV_NAME,
 		.of_match_table = of_match_ptr(rcar_can_of_table),
-		.pm = &rcar_can_pm_ops,
+		.pm = pm_sleep_ptr(&rcar_can_pm_ops),
 	},
 	.probe = rcar_can_probe,
 	.remove = rcar_can_remove,

base-commit: 0f26870a989bf69957ed69d10c7ffc57ca5a7f52
-- 
2.47.2