linux-kernel - [PATCH 16/28] mfd: tps6586x: 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 16:52:35 +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 16/28] mfd: tps6586x: Remove #ifdef guards for PM related functions

Use the new pm_sleep_ptr() macro to handle the .irq_set_wake() callback.

This macro allows the mt6397_irq_set_wake() function 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/tps6586x.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index c9303d3d6602..fd57c3974615 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -269,15 +269,11 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data)
 	mutex_unlock(&tps6586x->irq_lock);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on)
 {
 	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
 	return irq_set_irq_wake(tps6586x->irq, on);
 }
-#else
-#define tps6586x_irq_set_wake NULL
-#endif
 
 static struct irq_chip tps6586x_irq_chip = {
 	.name = "tps6586x",
@@ -285,7 +281,7 @@ static struct irq_chip tps6586x_irq_chip = {
 	.irq_bus_sync_unlock = tps6586x_irq_sync_unlock,
 	.irq_disable = tps6586x_irq_disable,
 	.irq_enable = tps6586x_irq_enable,
-	.irq_set_wake = tps6586x_irq_set_wake,
+	.irq_set_wake = pm_sleep_ptr(tps6586x_irq_set_wake),
 };
 
 static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq,
-- 
2.35.1