linux-kernel - [PATCH v1 4/5] ACPI: scan: Eliminate __acpi_device

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Message-ID: <13078324.uLZWGnKmhe@kreacher>
Date:   Wed, 10 Aug 2022 18:17:23 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux ACPI <linux-acpi@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linux PM <linux-pm@...r.kernel.org>
Subject: [PATCH v1 4/5] ACPI: scan: Eliminate __acpi_device_add()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Instead of having acpi_device_add() defined as a wrapper around
__acpi_device_add(), export acpi_tie_acpi_dev() so it can be called
directly by acpi_add_power_resource(), fold acpi_device_add() into the
latter and rename __acpi_device_add() to acpi_device_add().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/internal.h |    1 +
 drivers/acpi/power.c    |    6 +++++-
 drivers/acpi/scan.c     |   17 +++--------------
 3 files changed, 9 insertions(+), 15 deletions(-)

Index: linux-pm/drivers/acpi/internal.h
===================================================================
--- linux-pm.orig/drivers/acpi/internal.h
+++ linux-pm/drivers/acpi/internal.h
@@ -104,6 +104,7 @@ struct acpi_device_bus_id {
 
 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 			     int type, void (*release)(struct device *));
+int acpi_tie_acpi_dev(struct acpi_device *adev);
 int acpi_device_add(struct acpi_device *device);
 int acpi_device_setup_files(struct acpi_device *dev);
 void acpi_device_remove_files(struct acpi_device *dev);
Index: linux-pm/drivers/acpi/scan.c
===================================================================
--- linux-pm.orig/drivers/acpi/scan.c
+++ linux-pm/drivers/acpi/scan.c
@@ -643,7 +643,7 @@ static int acpi_device_set_name(struct a
 	return 0;
 }
 
-static int acpi_tie_acpi_dev(struct acpi_device *adev)
+int acpi_tie_acpi_dev(struct acpi_device *adev)
 {
 	acpi_handle handle = adev->handle;
 	acpi_status status;
@@ -673,7 +673,7 @@ static void acpi_store_pld_crc(struct ac
 	ACPI_FREE(pld);
 }
 
-static int __acpi_device_add(struct acpi_device *device)
+int acpi_device_add(struct acpi_device *device)
 {
 	struct acpi_device_bus_id *acpi_device_bus_id;
 	int result;
@@ -755,17 +755,6 @@ err_unlock:
 	return result;
 }
 
-int acpi_device_add(struct acpi_device *adev)
-{
-	int ret;
-
-	ret = acpi_tie_acpi_dev(adev);
-	if (ret)
-		return ret;
-
-	return __acpi_device_add(adev);
-}
-
 /* --------------------------------------------------------------------------
                                  Device Enumeration
    -------------------------------------------------------------------------- */
@@ -1866,7 +1855,7 @@ static int acpi_add_single_object(struct
 		mutex_unlock(&acpi_dep_list_lock);
 
 	if (!result)
-		result = __acpi_device_add(device);
+		result = acpi_device_add(device);
 
 	if (result) {
 		acpi_device_release(&device->dev);
Index: linux-pm/drivers/acpi/power.c
===================================================================
--- linux-pm.orig/drivers/acpi/power.c
+++ linux-pm/drivers/acpi/power.c
@@ -952,6 +952,7 @@ struct acpi_device *acpi_add_power_resou
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
 	device->power.state = ACPI_STATE_UNKNOWN;
+	device->flags.match_driver = true;
 
 	/* Evaluate the object to get the system level and resource order. */
 	status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
@@ -968,7 +969,10 @@ struct acpi_device *acpi_add_power_resou
 
 	pr_info("%s [%s]\n", acpi_device_name(device), acpi_device_bid(device));
 
-	device->flags.match_driver = true;
+	result = acpi_tie_acpi_dev(device);
+	if (result)
+		goto err;
+
 	result = acpi_device_add(device);
 	if (result)
 		goto err;