On Wed, 2019-07-24 at 13:05 +0200, Hans Verkuil wrote: > If a driver sets a FMT flag in the enum_fmt op, then that will be > ignored since v4l_fill_fmtdesc() overwrites it again. > > v4l_fill_fmtdesc() should OR its flag, not overwrite it. > > Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> > --- > drivers/media/v4l2-core/v4l2-ioctl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c > index 80efc581e3f9..911a20f915c5 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1390,7 +1390,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > > if (descr) > WARN_ON(strscpy(fmt->description, descr, sz) < 0); > - fmt->flags = flags; > + fmt->flags |= flags; > } > > static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, If the enum_fmt op does not write fmt->flags, will it not contain the value provided by userspace at this point? I think p->flags must be cleared in v4l2_enum_fmt() with this change, before the enum_fmt op is called. regards Philipp
