linux-kernel - [PATCH RFC 10/14] ahci: sunxi: Switch from CONFIG_PM_SLEEP guards to pm_sleep

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Message-Id: <20250127-pm_ata-v1-10-f8f50c821a2a@gmail.com>
Date: Mon, 27 Jan 2025 13:46:05 +0100
From: Raphael Gallais-Pou <rgallaispou@...il.com>
To: Damien Le Moal <dlemoal@...nel.org>, Niklas Cassel <cassel@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Patrice Chotard <patrice.chotard@...s.st.com>, Chen-Yu Tsai <wens@...e.org>, 
 Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>, Viresh Kumar <vireshk@...nel.org>, 
 Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, linux-sunxi@...ts.linux.dev, 
 linux-renesas-soc@...r.kernel.org
Subject: [PATCH RFC 10/14] ahci: sunxi: Switch from CONFIG_PM_SLEEP guards
 to pm_sleep_ptr()

Letting the compiler remove these functions when the kernel is built
without CONFIG_PM_SLEEP support is simpler and less error prone than the
use of #ifdef based kernel configuration guards.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com>
---
 drivers/ata/ahci_sunxi.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
index 5d4584570ae013a4e44ca69557cc2c5aa61d32b1..2e86d4c97b822b6a52513dbe55e21851a58385d9 100644
--- a/drivers/ata/ahci_sunxi.c
+++ b/drivers/ata/ahci_sunxi.c
@@ -253,7 +253,6 @@ static int ahci_sunxi_probe(struct platform_device *pdev)
 	return rc;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int ahci_sunxi_resume(struct device *dev)
 {
 	struct ata_host *host = dev_get_drvdata(dev);
@@ -278,10 +277,10 @@ static int ahci_sunxi_resume(struct device *dev)
 	ahci_platform_disable_resources(hpriv);
 	return rc;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(ahci_sunxi_pm_ops, ahci_platform_suspend,
-			 ahci_sunxi_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(ahci_sunxi_pm_ops,
+				ahci_platform_suspend,
+				ahci_sunxi_resume);
 
 static const struct of_device_id ahci_sunxi_of_match[] = {
 	{ .compatible = "allwinner,sun4i-a10-ahci", },
@@ -296,7 +295,7 @@ static struct platform_driver ahci_sunxi_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.of_match_table = ahci_sunxi_of_match,
-		.pm = &ahci_sunxi_pm_ops,
+		.pm = pm_sleep_ptr(&ahci_sunxi_pm_ops),
 	},
 };
 module_platform_driver(ahci_sunxi_driver);

-- 
2.48.0