linux-kernel - [PATCH v1 1/1] driver core: make bus_find_device_by_acpi

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Message-ID: <20251229144325.1252197-1-andriy.shevchenko@linux.intel.com>
Date: Mon, 29 Dec 2025 15:43:25 +0100
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] driver core: make bus_find_device_by_acpi_dev() stub prototype aligned

Currently the bus_find_device_by_acpi_dev() stub for !CONFIG_ACPI case
takes a const void * parameter instead of const struct acpi_device *.
As long as it's a pointer, we may named it as we want to with a help
of a forward declaration. Hence move the declaration out of ifdeffery
and use the same prototype in both cases. This adds a bit of an additional
type checking at a compilation time.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 include/linux/device/bus.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 5c1aca0d48c8..763eea81cfb6 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -216,9 +216,9 @@ bus_find_next_device(const struct bus_type *bus,struct device *cur)
 	return bus_find_device(bus, cur, NULL, device_match_any);
 }
 
-#ifdef CONFIG_ACPI
 struct acpi_device;
 
+#ifdef CONFIG_ACPI
 /**
  * bus_find_device_by_acpi_dev : device iterator for locating a particular device
  * matching the ACPI COMPANION device.
@@ -232,7 +232,7 @@ bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device
 }
 #else
 static inline struct device *
-bus_find_device_by_acpi_dev(const struct bus_type *bus, const void *adev)
+bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device *adev)
 {
 	return NULL;
 }
-- 
2.50.1