linux-kernel - [PATCH] iio: imu: inv_mpu6050: Mark acpi match table as maybe unused

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Message-Id: <20210913111346.1957635-1-daniel@0x0f.com>
Date:   Mon, 13 Sep 2021 20:13:46 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     jic23@...nel.org, lars@...afoo.de, jmaneyrol@...ensense.com,
        linux-iio@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Daniel Palmer <daniel@...f.com>
Subject: [PATCH] iio: imu: inv_mpu6050: Mark acpi match table as maybe unused

When building kernels without ACPI support the table is declared
but is not used because ACPI_PTR() turns it into a NULL.

Add the __maybe_unused attribute to stop the compiler whining.

Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
index 95f16951c8f4..dbd613178f01 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
@@ -249,7 +249,7 @@ static const struct of_device_id inv_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, inv_of_match);
 
-static const struct acpi_device_id inv_acpi_match[] = {
+static const struct __maybe_unused acpi_device_id inv_acpi_match[] = {
 	{"INVN6500", INV_MPU6500},
 	{ },
 };
-- 
2.33.0