linux-kernel - [PATCH 12/28] mfd: mcp-sa11x0: Remove #ifdef guards for PM related functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun,  7 Aug 2022 16:52:31 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH 12/28] mfd: mcp-sa11x0: Remove #ifdef guards for PM related functions

Use the new pm_sleep_ptr() macro to handle the .suspend/.resume
callbacks.

This macro allow the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards.

The advantage is then that these functions are now always compiled
independently of any Kconfig option, and thanks to that bugs and
regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 drivers/mfd/mcp-sa11x0.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
index 4629dff187cd..1c9831b78cf9 100644
--- a/drivers/mfd/mcp-sa11x0.c
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -255,7 +255,6 @@ static int mcp_sa11x0_remove(struct platform_device *dev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int mcp_sa11x0_suspend(struct device *dev)
 {
 	struct mcp_sa11x0 *m = priv(dev_get_drvdata(dev));
@@ -277,17 +276,14 @@ static int mcp_sa11x0_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static const struct dev_pm_ops mcp_sa11x0_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
 	.suspend = mcp_sa11x0_suspend,
 	.freeze = mcp_sa11x0_suspend,
 	.poweroff = mcp_sa11x0_suspend,
 	.resume_noirq = mcp_sa11x0_resume,
 	.thaw_noirq = mcp_sa11x0_resume,
 	.restore_noirq = mcp_sa11x0_resume,
-#endif
 };
 
 static struct platform_driver mcp_sa11x0_driver = {
@@ -295,7 +291,7 @@ static struct platform_driver mcp_sa11x0_driver = {
 	.remove		= mcp_sa11x0_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
-		.pm	= &mcp_sa11x0_pm_ops,
+		.pm	= pm_sleep_ptr(&mcp_sa11x0_pm_ops),
 	},
 };
 
-- 
2.35.1