[PATCH 4.9 56/66] [media] s5k4ecgx: select CRC32 helper

From: Greg Kroah-Hartman
Date: Tue Jan 31 2017 - 00:56:11 EST

4.9-stable review patch. If anyone has any objections, please let me know.


From: Arnd Bergmann <arnd@xxxxxxxx>

commit c739c0a7c3c2472d7562b8f802cdce44d2597c8b upstream.

A rare randconfig build failure shows up in this driver when
the CRC32 helper is not there:

drivers/media/built-in.o: In function `s5k4ecgx_s_power':
s5k4ecgx.c:(.text+0x9eb4): undefined reference to `crc32_le'

This adds the 'select' that all other users of this function have.

Fixes: 8b99312b7214 ("[media] Add v4l2 subdev driver for S5K4ECGX sensor")

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/media/i2c/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -655,6 +655,7 @@ config VIDEO_S5K6A3
tristate "Samsung S5K4ECGX sensor support"
depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+ select CRC32
This is a V4L2 sensor-level driver for Samsung S5K4ECGX 5M
camera sensor with an embedded SoC image signal processor.