VIDIOC_RESERVED was removed in Linux 4.19. commit ea8532daee31bc72abfbc9ca7a43cbec0f6c05af Author: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> Date: Wed May 30 11:07:05 2018 -0400 media: videodev2: get rid of VIDIOC_RESERVED While this ioctl is there at least since Kernel 2.6.12-rc2, it was never used by any upstream driver. Get rid of it. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> This patch fixes this build error. CC ioctls/videodev2.o In file included from ioctls/videodev2.c:4: ioctls/videodev2.c:8:8: error: ‘VIDIOC_RESERVED’ undeclared here (not in a function); did you mean ‘VIDIOC_G_STD’? IOCTL(VIDIOC_RESERVED), ^~~~~~~~~~~~~~~ include/ioctls.h:53:15: note: in definition of macro ‘IOCTL’ { .request = _request, .name = #_request, } ^~~~~~~~ Signed-off-by: Vinson Lee <vlee@xxxxxxxxxxxxxxx> --- ioctls/videodev2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/ioctls/videodev2.c b/ioctls/videodev2.c index f7183f29835a..67089abf742f 100644 --- a/ioctls/videodev2.c +++ b/ioctls/videodev2.c @@ -5,7 +5,9 @@ static const struct ioctl videodev2_ioctls[] = { IOCTL(VIDIOC_QUERYCAP), +#ifdef VIDIOC_RESERVED IOCTL(VIDIOC_RESERVED), +#endif IOCTL(VIDIOC_ENUM_FMT), IOCTL(VIDIOC_G_FMT), IOCTL(VIDIOC_S_FMT), -- 2.18.0