linux-kernel - [PATCH 5/7] hwrnd: atmel - use __maybe_unused and pm

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Date:   Fri, 18 Feb 2022 12:17:10 +0200
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <mpm@...enic.com>, <herbert@...dor.apana.org.au>,
        <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <linux-crypto@...r.kernel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH 5/7] hwrnd: atmel - use __maybe_unused and pm_ptr() for pm ops

Use __maybe_unused and pm_ptr() for pm ops.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 drivers/char/hw_random/atmel-rng.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index ef49dbe681cf..0fff74808472 100644
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -155,8 +155,7 @@ static int atmel_trng_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int atmel_trng_suspend(struct device *dev)
+static int __maybe_unused atmel_trng_suspend(struct device *dev)
 {
 	struct atmel_trng *trng = dev_get_drvdata(dev);
 
@@ -165,18 +164,17 @@ static int atmel_trng_suspend(struct device *dev)
 	return 0;
 }
 
-static int atmel_trng_resume(struct device *dev)
+static int __maybe_unused atmel_trng_resume(struct device *dev)
 {
 	struct atmel_trng *trng = dev_get_drvdata(dev);
 
 	return atmel_trng_init(trng);
 }
 
-static const struct dev_pm_ops atmel_trng_pm_ops = {
+static const struct dev_pm_ops __maybe_unused atmel_trng_pm_ops = {
 	.suspend	= atmel_trng_suspend,
 	.resume		= atmel_trng_resume,
 };
-#endif /* CONFIG_PM */
 
 static const struct atmel_trng_data at91sam9g45_config = {
 	.has_half_rate = false,
@@ -204,9 +202,7 @@ static struct platform_driver atmel_trng_driver = {
 	.remove		= atmel_trng_remove,
 	.driver		= {
 		.name	= "atmel-trng",
-#ifdef CONFIG_PM
-		.pm	= &atmel_trng_pm_ops,
-#endif /* CONFIG_PM */
+		.pm	= pm_ptr(&atmel_trng_pm_ops),
 		.of_match_table = atmel_trng_dt_ids,
 	},
 };
-- 
2.32.0