linux-kernel - [PATCH 09/10] gpio: gpio-mlxbf2: Tell the compiler that ACPI functions may not be use

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Date:   Tue, 30 Jun 2020 14:33:44 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     linus.walleij@...aro.org, bgolaszewski@...libre.com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Asmaa Mnebhi <Asmaa@...lanox.com>
Subject: [PATCH 09/10] gpio: gpio-mlxbf2: Tell the compiler that ACPI functions may not be use

... as is the case when !CONFIG_ACPI.

Fixes the following W=1 kernel build warning:

 drivers/gpio/gpio-mlxbf2.c:312:36: warning: ‘mlxbf2_gpio_acpi_match’ defined but not used [-Wunused-const-variable=]
 312 | static const struct acpi_device_id mlxbf2_gpio_acpi_match[] = {
 | ^~~~~~~~~~~~~~~~~~~~~~

Cc: Asmaa Mnebhi <Asmaa@...lanox.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/gpio/gpio-mlxbf2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index 94d5efce1721c..861a8d0a84be0 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -309,7 +309,7 @@ static int mlxbf2_gpio_resume(struct platform_device *pdev)
 }
 #endif
 
-static const struct acpi_device_id mlxbf2_gpio_acpi_match[] = {
+static const struct acpi_device_id __maybe_unused mlxbf2_gpio_acpi_match[] = {
 	{ "MLNXBF22", 0 },
 	{},
 };
-- 
2.25.1