linux-kernel - [PATCH][next] platform/x86: Avoid -Wflex-array-member-not-at-end warning

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Message-ID: <Z-WlhL_tAP11M02G@kspp>
Date: Thu, 27 Mar 2025 13:22:44 -0600
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Mattia Dongili <malattia@...ux.it>, Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hardening@...r.kernel.org
Subject: [PATCH][next] platform/x86: Avoid -Wflex-array-member-not-at-end
 warning

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Move the conflicting declaration to the end of the structure. Notice
that `struct acpi_resource_irq` is a flexible structure --a structure
that contains a flexible-array member.

Fix the following warning:

drivers/platform/x86/sony-laptop.c:3330:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 drivers/platform/x86/sony-laptop.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 3197aaa69da7..9cd6d4a10ddb 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -3327,8 +3327,10 @@ struct sony_pic_ioport {
 };
 
 struct sony_pic_irq {
-	struct acpi_resource_irq	irq;
 	struct list_head		list;
+
+	/* Must be last --ends in a flexible-array member. */
+	struct acpi_resource_irq	irq;
 };
 
 struct sonypi_eventtypes {
-- 
2.43.0