linux-kernel - [PATCH 3.12 015/113] s5k4ecgx: select CRC32 helper

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Date:   Mon,  6 Mar 2017 10:10:39 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 015/113] s5k4ecgx: select CRC32 helper

From: Arnd Bergmann <arnd@...db.de>

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

===============

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@...db.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/media/i2c/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index d18be19c96cd..db62d7ede7fe 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -590,6 +590,7 @@ config VIDEO_S5K6AA
 config VIDEO_S5K4ECGX
         tristate "Samsung S5K4ECGX sensor support"
         depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select CRC32
         ---help---
           This is a V4L2 sensor-level driver for Samsung S5K4ECGX 5M
           camera sensor with an embedded SoC image signal processor.
-- 
2.12.0