linux-kernel - [PATCH v2] ahci: st: Switch from CONFIG_PM_SLEEP guards to pm_sleep

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Message-ID: <20250109175427.64384-1-rgallaispou@gmail.com>
Date: Thu,  9 Jan 2025 18:54:27 +0100
From: Raphael Gallais-Pou <rgallaispou@...il.com>
To: Patrice Chotard <patrice.chotard@...s.st.com>,
	Damien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] ahci: st: 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>
---
Changes in v2:
  - Split serie in single patches
  - Remove irrelevant 'Link:' from commit log
  - Link to v1: https://lore.kernel.org/r/20241229-update_pm_macro-v1-4-c7d4c4856336@gmail.com
---
 drivers/ata/ahci_st.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index 6b9b4a1dfa15..4336c8a6e208 100644
--- a/drivers/ata/ahci_st.c
+++ b/drivers/ata/ahci_st.c
@@ -176,7 +176,6 @@ static int st_ahci_probe(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int st_ahci_suspend(struct device *dev)
 {
 	struct ata_host *host = dev_get_drvdata(dev);
@@ -221,9 +220,8 @@ static int st_ahci_resume(struct device *dev)
 
 	return ahci_platform_resume_host(dev);
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(st_ahci_pm_ops, st_ahci_suspend, st_ahci_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(st_ahci_pm_ops, st_ahci_suspend, st_ahci_resume);
 
 static const struct of_device_id st_ahci_match[] = {
 	{ .compatible = "st,ahci", },
@@ -234,7 +232,7 @@ MODULE_DEVICE_TABLE(of, st_ahci_match);
 static struct platform_driver st_ahci_driver = {
 	.driver = {
 		.name = DRV_NAME,
-		.pm = &st_ahci_pm_ops,
+		.pm = pm_sleep_ptr(&st_ahci_pm_ops),
 		.of_match_table = st_ahci_match,
 	},
 	.probe = st_ahci_probe,
-- 
2.47.1