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Message-ID: <20241031040952.109057-12-mario.limonciello@amd.com>
Date: Wed, 30 Oct 2024 23:09:41 -0500
From: Mario Limonciello <mario.limonciello@....com>
To: Hans de Goede <hdegoede@...hat.com>, Ilpo Järvinen
<ilpo.jarvinen@...ux.intel.com>
CC: "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>,
Maximilian Luz <luzmaximilian@...il.com>, Lee Chun-Yi <jlee@...e.com>, "Shyam
Sundar S K" <Shyam-sundar.S-k@....com>, Corentin Chary
<corentin.chary@...il.com>, "Luke D . Jones" <luke@...nes.dev>, Ike Panhc
<ike.pan@...onical.com>, Henrique de Moraes Holschuh <hmh@....eng.br>,
"Alexis Belmonte" <alexbelm48@...il.com>, Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>, Ai Chao <aichao@...inos.cn>, Gergo Koteles
<soyer@....hu>, open list <linux-kernel@...r.kernel.org>, "open list:ACPI"
<linux-acpi@...r.kernel.org>, "open list:MICROSOFT SURFACE PLATFORM PROFILE
DRIVER" <platform-driver-x86@...r.kernel.org>, "open list:THINKPAD ACPI
EXTRAS DRIVER" <ibm-acpi-devel@...ts.sourceforge.net>, Mark Pearson
<mpearson-lenovo@...ebb.ca>, Matthew Schwartz <matthew.schwartz@...ux.dev>,
Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v3 11/22] ACPI: platform_profile: Use `scoped_cond_guard` for platform_profile_cycle()
Migrate away from using an interruptible mutex to scoped_cond_guard.
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
drivers/acpi/platform_profile.c | 39 +++++++++++++--------------------
1 file changed, 15 insertions(+), 24 deletions(-)
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 63a5f5ac33898..2d971dba2d917 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -124,36 +124,27 @@ int platform_profile_cycle(void)
enum platform_profile_option next;
int err;
- err = mutex_lock_interruptible(&profile_lock);
- if (err)
- return err;
+ scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) {
+ if (!cur_profile)
+ return -ENODEV;
- if (!cur_profile) {
- mutex_unlock(&profile_lock);
- return -ENODEV;
- }
+ err = cur_profile->profile_get(cur_profile, &profile);
+ if (err)
+ return err;
- err = cur_profile->profile_get(cur_profile, &profile);
- if (err) {
- mutex_unlock(&profile_lock);
- return err;
- }
+ next = find_next_bit_wrap(cur_profile->choices, PLATFORM_PROFILE_LAST,
+ profile + 1);
- next = find_next_bit_wrap(cur_profile->choices, PLATFORM_PROFILE_LAST,
- profile + 1);
+ if (WARN_ON(next == PLATFORM_PROFILE_LAST))
+ return -EINVAL;
- if (WARN_ON(next == PLATFORM_PROFILE_LAST)) {
- mutex_unlock(&profile_lock);
- return -EINVAL;
+ err = cur_profile->profile_set(cur_profile, next);
+ if (err)
+ return err;
}
- err = cur_profile->profile_set(cur_profile, next);
- mutex_unlock(&profile_lock);
-
- if (!err)
- sysfs_notify(acpi_kobj, NULL, "platform_profile");
-
- return err;
+ sysfs_notify(acpi_kobj, NULL, "platform_profile");
+ return 0;
}
EXPORT_SYMBOL_GPL(platform_profile_cycle);
--
2.43.0
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