linux-kernel - [PATCH] iio hid-sensor-trigger: add Kconfig depends on IIO

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Message-Id: <20170612115608.28058-1-arw@arw.name>
Date:   Mon, 12 Jun 2017 13:56:05 +0200
From:   Alexander Wuerstlein <arw@....name>
To:     arw@....name
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org (open list:IIO SUBSYSTEM AND DRIVERS),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] iio hid-sensor-trigger: add Kconfig depends on IIO_BUFFER

Building a kernel with my configuration failed with:
> drivers/built-in.o: In function `hid_sensor_setup_batch_mode': staging/drivers/iio/common/hid-sensors/hid-sensor-trigger.c:104: undefined reference to `iio_buffer_set_attrs'
which is fixed by this patch.

Signed-off-by: Alexander Wuerstlein <arw@....name>
---
 drivers/iio/common/hid-sensors/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/common/hid-sensors/Kconfig b/drivers/iio/common/hid-sensors/Kconfig
index 39188b72cd3b..80105378b0ba 100644
--- a/drivers/iio/common/hid-sensors/Kconfig
+++ b/drivers/iio/common/hid-sensors/Kconfig
@@ -16,7 +16,7 @@ config HID_SENSOR_IIO_COMMON
 
 config HID_SENSOR_IIO_TRIGGER
 	tristate "Common module (trigger) for all HID Sensor IIO drivers"
-	depends on HID_SENSOR_HUB && HID_SENSOR_IIO_COMMON
+	depends on HID_SENSOR_HUB && HID_SENSOR_IIO_COMMON && IIO_BUFFER
 	select IIO_TRIGGER
 	help
 	  Say yes here to build trigger support for HID sensors.
-- 
2.11.0