This error is a result of not defining v4l_change_media_source() stub in include/media/v4l2-mc.h for !CONFIG_MEDIA_CONTROLLER case. Fix the following compile error: url: https://github.com/0day-ci/linux/commits/Shuah-Khan/media-add-change_source-handler-support/20160310-131140 base: git://linuxtv.org/media_tree.git master config: x86_64-rhel (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/media/usb/au0828/au0828-video.c: In function 'vidioc_s_input': >> drivers/media/usb/au0828/au0828-video.c:1474:2: error: implicit declaration of function 'v4l_change_media_source' [-Werror=implicit-function-declaration] return v4l_change_media_source(vfd); ^ cc1: some warnings being treated as errors Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> --- This patch applies on top of: https://lkml.org/lkml/2016/3/10/7 include/media/v4l2-mc.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/media/v4l2-mc.h b/include/media/v4l2-mc.h index 884b969..50b9348 100644 --- a/include/media/v4l2-mc.h +++ b/include/media/v4l2-mc.h @@ -237,6 +237,11 @@ static inline int v4l_enable_media_source(struct video_device *vdev) return 0; } +static inline int v4l_change_media_source(struct video_device *vdev) +{ + return 0; +} + static inline void v4l_disable_media_source(struct video_device *vdev) { } -- 2.5.0 -- 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
