linux-kernel - [PATCH v2 1/2] ACPI: platform-profile: Introduce object pointers to callbacks

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Date:   Tue,  5 Jan 2021 21:14:42 +0800
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     platform-driver-x86@...r.kernel.org
Cc:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Hans de Goede <hdegoede@...hat.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Mark Gross <mgross@...ux.intel.com>,
        Ike Panhc <ike.pan@...onical.com>,
        Mark Pearson <markpearson@...ovo.com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] ACPI: platform-profile: Introduce object pointers to callbacks

Add a object pointer to handler callbacks to avoid having
global variables everywhere.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
Suggested-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/acpi/platform_profile.c  | 4 ++--
 include/linux/platform_profile.h | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 91be50a32cc8..bb4d7b0fe2ac 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -64,7 +64,7 @@ static ssize_t platform_profile_show(struct device *dev,
 		return -ENODEV;
 	}
 
-	err = cur_profile->profile_get(&profile);
+	err = cur_profile->profile_get(cur_profile, &profile);
 	mutex_unlock(&profile_lock);
 	if (err)
 		return err;
@@ -104,7 +104,7 @@ static ssize_t platform_profile_store(struct device *dev,
 		return -EOPNOTSUPP;
 	}
 
-	err = cur_profile->profile_set(i);
+	err = cur_profile->profile_set(cur_profile, i);
 	mutex_unlock(&profile_lock);
 	if (err)
 		return err;
diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
index 3623d7108421..43f4583b5259 100644
--- a/include/linux/platform_profile.h
+++ b/include/linux/platform_profile.h
@@ -28,8 +28,10 @@ enum platform_profile_option {
 
 struct platform_profile_handler {
 	unsigned long choices[BITS_TO_LONGS(PLATFORM_PROFILE_LAST)];
-	int (*profile_get)(enum platform_profile_option *profile);
-	int (*profile_set)(enum platform_profile_option profile);
+	int (*profile_get)(struct platform_profile_handler *pprof,
+				enum platform_profile_option *profile);
+	int (*profile_set)(struct platform_profile_handler *pprof,
+				enum platform_profile_option profile);
 };
 
 int platform_profile_register(const struct platform_profile_handler *pprof);
-- 
2.30.0