linux-kernel - [PATCH] [v2] Input: stmpe-ts - mark OF related data as maybe unused

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250225145332.1116557-1-arnd@kernel.org>
Date: Tue, 25 Feb 2025 15:53:26 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Yu Jiaoliang <yujiaoliang@...o.com>,
	Oliver Graute <oliver.graute@...oconnector.com>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	linux-input@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] [v2] Input: stmpe-ts - mark OF related data as maybe unused

From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

When compile tested with W=1 on x86_64 with driver as built-in:

  stmpe-ts.c:371:34: error: unused variable 'stmpe_ts_ids' [-Werror,-Wunused-const-variable]

Ideally this would be referenced from the platform_driver, but since
the compatible string is already matched by the mfd driver for its
parent device, that would break probing.

In this case, the of_device_id table just serves as a module alias
for loading the driver, while the device itself is probed using
the platform device name.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Link: https://lore.kernel.org/lkml/20240403080702.3509288-8-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/input/touchscreen/stmpe-ts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index a94a1997f96b..3900aa2e3a90 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -366,7 +366,7 @@ static struct platform_driver stmpe_ts_driver = {
 };
 module_platform_driver(stmpe_ts_driver);
 
-static const struct of_device_id stmpe_ts_ids[] = {
+static const struct of_device_id stmpe_ts_ids[] __maybe_unused = {
 	{ .compatible = "st,stmpe-ts", },
 	{ },
 };
-- 
2.39.5