linux-kernel - [PATCH] acpi: use LIST_HEAD for stack-allocated list in acpi_watchdog

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Message-Id: <20251209072757.3110467-1-pengcan@kylinos.cn>
Date: Tue,  9 Dec 2025 15:27:57 +0800
From: Can Peng <pengcan@...inos.cn>
To: rafael@...nel.org,
	lenb@...nel.org
Cc: linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Can Peng <pengcan@...inos.cn>
Subject: [PATCH] acpi: use LIST_HEAD for stack-allocated list in acpi_watchdog_init

Replace the separate declaration of 'resource_list' and subsequent
INIT_LIST_HEAD() call with LIST_HEAD(), which declares and initializes
the list head in one idiomatic step. This reduces code verbosity and
aligns with common kernel coding patterns, without functional change.

Signed-off-by: Can Peng <pengcan@...inos.cn>
---
 drivers/acpi/acpi_watchdog.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 14b24157799c..709993c535d1 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -103,7 +103,7 @@ void __init acpi_watchdog_init(void)
 {
 	const struct acpi_wdat_entry *entries;
 	const struct acpi_table_wdat *wdat;
-	struct list_head resource_list;
+	LIST_HEAD(resource_list);
 	struct resource_entry *rentry;
 	struct platform_device *pdev;
 	struct resource *resources;
@@ -125,8 +125,6 @@ void __init acpi_watchdog_init(void)
 	    wdat->pci_device != 0xff || wdat->pci_function != 0xff)
 		goto fail_put_wdat;
 
-	INIT_LIST_HEAD(&resource_list);
-
 	entries = (struct acpi_wdat_entry *)(wdat + 1);
 	for (i = 0; i < wdat->entries; i++) {
 		const struct acpi_generic_address *gas;
-- 
2.25.1