The cobalt driver should depend on VIDEO_V4L2_SUBDEV_API. This fixes this kbuild error: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 99bc7215bc60f6cd414cf1b85cd9d52cc596cccb commit: 85756a069c55e0315ac5990806899cfb607b987f [media] cobalt: add new driver date: 4 months ago config: x86_64-randconfig-s0-09201514 (attached as .config) reproduce: git checkout 85756a069c55e0315ac5990806899cfb607b987f # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): drivers/media/i2c/adv7604.c: In function 'adv76xx_get_format': >> drivers/media/i2c/adv7604.c:1853:9: error: implicit declaration of function 'v4l2_subdev_get_try_format' [-Werror=implicit-function-declaration] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7604.c:1853:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7604.c: In function 'adv76xx_set_format': drivers/media/i2c/adv7604.c:1882:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ cc1: some warnings being treated as errors -- drivers/media/i2c/adv7842.c: In function 'adv7842_get_format': >> drivers/media/i2c/adv7842.c:2093:9: error: implicit declaration of function 'v4l2_subdev_get_try_format' [-Werror=implicit-function-declaration] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7842.c:2093:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7842.c: In function 'adv7842_set_format': drivers/media/i2c/adv7842.c:2125:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ cc1: some warnings being treated as errors -- drivers/media/i2c/adv7511.c: In function 'adv7511_get_fmt': >> drivers/media/i2c/adv7511.c:859:9: error: implicit declaration of function 'v4l2_subdev_get_try_format' [-Werror=implicit-function-declaration] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7511.c:859:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ drivers/media/i2c/adv7511.c: In function 'adv7511_set_fmt': drivers/media/i2c/adv7511.c:910:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); ^ cc1: some warnings being treated as errors Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Reported by: kbuild test robot <fengguang.wu@xxxxxxxxx> diff --git a/drivers/media/pci/cobalt/Kconfig b/drivers/media/pci/cobalt/Kconfig index 1f88ccc..a01f0cc 100644 --- a/drivers/media/pci/cobalt/Kconfig +++ b/drivers/media/pci/cobalt/Kconfig @@ -1,6 +1,6 @@ config VIDEO_COBALT tristate "Cisco Cobalt support" - depends on VIDEO_V4L2 && I2C && MEDIA_CONTROLLER + depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API depends on PCI_MSI && MTD_COMPLEX_MAPPINGS depends on GPIOLIB || COMPILE_TEST depends on SND -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html