[v4l-utils,v2,1/2] v4l2-compliance: Fix use of routing on 32-bit platforms
Commit Message
At the moment we do:
routing.routes = (__u64)&routes;
On 32-bit platforms the 32-bit address will be sign-extended, possibly
resulting setting the address to, e.g., 0xff000000 -> 0xffffffffff000000.
Fix this by converting the address to uintptr_t.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
utils/v4l2-compliance/v4l2-compliance.cpp | 4 ++--
utils/v4l2-compliance/v4l2-test-subdevs.cpp | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
Comments
On 03.04.2024 12:15, Tomi Valkeinen wrote:
> At the moment we do:
>
> routing.routes = (__u64)&routes;
>
> On 32-bit platforms the 32-bit address will be sign-extended, possibly
> resulting setting the address to, e.g., 0xff000000 -> 0xffffffffff000000.
>
> Fix this by converting the address to uintptr_t.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
> ---
> utils/v4l2-compliance/v4l2-compliance.cpp | 4 ++--
> utils/v4l2-compliance/v4l2-test-subdevs.cpp | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
> index 2cf97909..fd7e7d76 100644
> --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> @@ -1274,7 +1274,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
> which <= V4L2_SUBDEV_FORMAT_ACTIVE; which++) {
>
> sd_routing[which].which = which;
> - sd_routing[which].routes = (__u64)sd_routes[which];
> + sd_routing[which].routes = (uintptr_t)sd_routes[which];
> sd_routing[which].num_routes = NUM_ROUTES_MAX;
>
> ret = doioctl(&node, VIDIOC_SUBDEV_G_ROUTING, &sd_routing[which]);
> @@ -1305,7 +1305,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
> routes = sd_routes[which];
> } else {
> dummy_routing.num_routes = 1;
> - dummy_routing.routes = (__u64)&dummy_routes;
> + dummy_routing.routes = (uintptr_t)&dummy_routes;
> dummy_routes[0].source_pad = pad;
> dummy_routes[0].source_stream = 0;
> dummy_routes[0].sink_pad = pad;
> diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> index ebca1b94..560efb70 100644
> --- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> +++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> @@ -586,7 +586,7 @@ int testSubDevRouting(struct node *node, unsigned which)
> int ret;
>
> routing.which = which;
> - routing.routes = (__u64)&routes;
> + routing.routes = (uintptr_t)&routes;
> routing.num_routes = 0;
> memset(routing.reserved, 0xff, sizeof(routing.reserved));
>
>
On Wed, Apr 03, 2024 at 12:27:40PM +0200, Hans Verkuil wrote:
> On 03.04.2024 12:15, Tomi Valkeinen wrote:
> > At the moment we do:
> >
> > routing.routes = (__u64)&routes;
> >
> > On 32-bit platforms the 32-bit address will be sign-extended, possibly
> > resulting setting the address to, e.g., 0xff000000 -> 0xffffffffff000000.
> >
> > Fix this by converting the address to uintptr_t.
> >
> > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
>
> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > ---
> > utils/v4l2-compliance/v4l2-compliance.cpp | 4 ++--
> > utils/v4l2-compliance/v4l2-test-subdevs.cpp | 2 +-
> > 2 files changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp b/utils/v4l2-compliance/v4l2-compliance.cpp
> > index 2cf97909..fd7e7d76 100644
> > --- a/utils/v4l2-compliance/v4l2-compliance.cpp
> > +++ b/utils/v4l2-compliance/v4l2-compliance.cpp
> > @@ -1274,7 +1274,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
> > which <= V4L2_SUBDEV_FORMAT_ACTIVE; which++) {
> >
> > sd_routing[which].which = which;
> > - sd_routing[which].routes = (__u64)sd_routes[which];
> > + sd_routing[which].routes = (uintptr_t)sd_routes[which];
> > sd_routing[which].num_routes = NUM_ROUTES_MAX;
> >
> > ret = doioctl(&node, VIDIOC_SUBDEV_G_ROUTING, &sd_routing[which]);
> > @@ -1305,7 +1305,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
> > routes = sd_routes[which];
> > } else {
> > dummy_routing.num_routes = 1;
> > - dummy_routing.routes = (__u64)&dummy_routes;
> > + dummy_routing.routes = (uintptr_t)&dummy_routes;
> > dummy_routes[0].source_pad = pad;
> > dummy_routes[0].source_stream = 0;
> > dummy_routes[0].sink_pad = pad;
> > diff --git a/utils/v4l2-compliance/v4l2-test-subdevs.cpp b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > index ebca1b94..560efb70 100644
> > --- a/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > +++ b/utils/v4l2-compliance/v4l2-test-subdevs.cpp
> > @@ -586,7 +586,7 @@ int testSubDevRouting(struct node *node, unsigned which)
> > int ret;
> >
> > routing.which = which;
> > - routing.routes = (__u64)&routes;
> > + routing.routes = (uintptr_t)&routes;
> > routing.num_routes = 0;
> > memset(routing.reserved, 0xff, sizeof(routing.reserved));
> >
@@ -1274,7 +1274,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
which <= V4L2_SUBDEV_FORMAT_ACTIVE; which++) {
sd_routing[which].which = which;
- sd_routing[which].routes = (__u64)sd_routes[which];
+ sd_routing[which].routes = (uintptr_t)sd_routes[which];
sd_routing[which].num_routes = NUM_ROUTES_MAX;
ret = doioctl(&node, VIDIOC_SUBDEV_G_ROUTING, &sd_routing[which]);
@@ -1305,7 +1305,7 @@ void testNode(struct node &node, struct node &node_m2m_cap, struct node &expbuf_
routes = sd_routes[which];
} else {
dummy_routing.num_routes = 1;
- dummy_routing.routes = (__u64)&dummy_routes;
+ dummy_routing.routes = (uintptr_t)&dummy_routes;
dummy_routes[0].source_pad = pad;
dummy_routes[0].source_stream = 0;
dummy_routes[0].sink_pad = pad;
@@ -586,7 +586,7 @@ int testSubDevRouting(struct node *node, unsigned which)
int ret;
routing.which = which;
- routing.routes = (__u64)&routes;
+ routing.routes = (uintptr_t)&routes;
routing.num_routes = 0;
memset(routing.reserved, 0xff, sizeof(routing.reserved));