linux-kernel - [PATCH v2 2/2] ACPI: bus: Refactor ACPI matching functions for better readability

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Date:   Fri, 26 Aug 2022 20:16:35 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 2/2] ACPI: bus: Refactor ACPI matching functions for better readability

With temporary variables for OF and ACPI IDs, it's easier to read
the code. No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: refactored another function (due to drop the rest of the series)
 drivers/acpi/bus.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index f3e868d35144..d466c8195314 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -925,12 +925,13 @@ static const void *acpi_of_device_get_match_data(const struct device *dev)
 
 const void *acpi_device_get_match_data(const struct device *dev)
 {
+	const struct acpi_device_id *acpi_ids = dev->driver->acpi_match_table;
 	const struct acpi_device_id *match;
 
-	if (!dev->driver->acpi_match_table)
+	if (!acpi_ids)
 		return acpi_of_device_get_match_data(dev);
 
-	match = acpi_match_device(dev->driver->acpi_match_table, dev);
+	match = acpi_match_device(acpi_ids, dev);
 	if (!match)
 		return NULL;
 
@@ -948,14 +949,13 @@ EXPORT_SYMBOL(acpi_match_device_ids);
 bool acpi_driver_match_device(struct device *dev,
 			      const struct device_driver *drv)
 {
-	if (!drv->acpi_match_table)
-		return acpi_of_match_device(ACPI_COMPANION(dev),
-					    drv->of_match_table,
-					    NULL);
-
-	return __acpi_match_device(acpi_companion_match(dev),
-				   drv->acpi_match_table, drv->of_match_table,
-				   NULL, NULL);
+	const struct acpi_device_id *acpi_ids = drv->acpi_match_table;
+	const struct of_device_id *of_ids = drv->of_match_table;
+
+	if (!acpi_ids)
+		return acpi_of_match_device(ACPI_COMPANION(dev), of_ids, NULL);
+
+	return __acpi_match_device(acpi_companion_match(dev), acpi_ids, of_ids, NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(acpi_driver_match_device);
 
-- 
2.35.1