linux-kernel - [PATCH v2 21/30] mfd: arizona: 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:   Mon,  8 Aug 2022 19:40:58 +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>,
        patches@...nsource.cirrus.com
Subject: [PATCH v2 21/30] mfd: arizona: Remove #ifdef guards for PM related functions

Use the new EXPORT_GPL_DEV_PM_OPS() and pm_ptr() macros to handle the PM
callbacks.

These macros allow the PM functions to be automatically dropped by the
compiler when CONFIG_PM is disabled, without having to use #ifdef
guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---

V2: Use new EXPORT_GPL_DEV_PM_OPS() macro

Cc: patches@...nsource.cirrus.com

 drivers/mfd/arizona-core.c | 19 +++++++------------
 drivers/mfd/arizona-i2c.c  |  2 +-
 drivers/mfd/arizona-spi.c  |  2 +-
 3 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index cbf1dd90b70d..bd7ee3260d53 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -480,7 +480,6 @@ static int wm5102_clear_write_sequencer(struct arizona *arizona)
 	return 0;
 }
 
-#ifdef CONFIG_PM
 static int arizona_isolate_dcvdd(struct arizona *arizona)
 {
 	int ret;
@@ -742,9 +741,7 @@ static int arizona_runtime_suspend(struct device *dev)
 
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_PM_SLEEP
 static int arizona_suspend(struct device *dev)
 {
 	struct arizona *arizona = dev_get_drvdata(dev);
@@ -784,17 +781,15 @@ static int arizona_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-const struct dev_pm_ops arizona_pm_ops = {
-	SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
-			   arizona_runtime_resume,
-			   NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
-				      arizona_resume_noirq)
+EXPORT_GPL_DEV_PM_OPS(arizona_pm_ops) = {
+	RUNTIME_PM_OPS(arizona_runtime_suspend,
+		       arizona_runtime_resume,
+		       NULL)
+	SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
+				  arizona_resume_noirq)
 };
-EXPORT_SYMBOL_GPL(arizona_pm_ops);
 
 #ifdef CONFIG_OF
 static int arizona_of_get_core_pdata(struct arizona *arizona)
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 6d83e6b9a692..8799d9183bee 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -119,7 +119,7 @@ static const struct of_device_id arizona_i2c_of_match[] = {
 static struct i2c_driver arizona_i2c_driver = {
 	.driver = {
 		.name	= "arizona",
-		.pm	= &arizona_pm_ops,
+		.pm	= pm_ptr(&arizona_pm_ops),
 		.of_match_table	= of_match_ptr(arizona_i2c_of_match),
 	},
 	.probe		= arizona_i2c_probe,
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index 941b0267d09d..da05b966d48c 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -282,7 +282,7 @@ static const struct of_device_id arizona_spi_of_match[] = {
 static struct spi_driver arizona_spi_driver = {
 	.driver = {
 		.name	= "arizona",
-		.pm	= &arizona_pm_ops,
+		.pm	= pm_ptr(&arizona_pm_ops),
 		.of_match_table	= of_match_ptr(arizona_spi_of_match),
 		.acpi_match_table = ACPI_PTR(arizona_acpi_match),
 	},
-- 
2.35.1