diff mbox series

[v4l-utils,v2,1/2] v4l2-compliance: Fix use of routing on 32-bit platforms

Message ID 20240403-v4l2-compliance-streams-fixes-v2-1-be9b338dc204@ideasonboard.com (mailing list archive)
State New, archived
Headers show
Series v4l2-compliance streams fixes | expand

Commit Message

Tomi Valkeinen April 3, 2024, 10:15 a.m. UTC 
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

Hans Verkuil April 3, 2024, 10:27 a.m. UTC | #1 
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));
>  
>
Laurent Pinchart April 3, 2024, 2:36 p.m. UTC | #2 
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));
> >
diff mbox series

Patch

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));