hw/nubus/nubus-virtio-mmio.c | 1 + 1 file changed, 1 insertion(+)
As the comment in qapi/error, dereferencing @errp requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
* - It must not be dereferenced, because it may be null.
...
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
*
* Using it when it's not needed is safe, but please avoid cluttering
* the source with useless code.
But in nubus_virtio_mmio_realize(), @errp is dereferenced without
ERRP_GUARD().
Although nubus_virtio_mmio_realize() - as a DeviceClass.realize()
method - doesn't get the NULL @errp parameter, it hasn't triggered the
bug that dereferencing the NULL @errp. It's still necessary to follow
the requirement of @errp, so add missing ERRP_GUARD() in
nubus_virtio_mmio_realize().
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
hw/nubus/nubus-virtio-mmio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/nubus/nubus-virtio-mmio.c b/hw/nubus/nubus-virtio-mmio.c
index 58a63c84d0be..a5558d3ec28b 100644
--- a/hw/nubus/nubus-virtio-mmio.c
+++ b/hw/nubus/nubus-virtio-mmio.c
@@ -23,6 +23,7 @@ static void nubus_virtio_mmio_set_input_irq(void *opaque, int n, int level)
static void nubus_virtio_mmio_realize(DeviceState *dev, Error **errp)
{
+ ERRP_GUARD();
NubusVirtioMMIODeviceClass *nvmdc = NUBUS_VIRTIO_MMIO_GET_CLASS(dev);
NubusVirtioMMIO *s = NUBUS_VIRTIO_MMIO(dev);
NubusDevice *nd = NUBUS_DEVICE(dev);
--
2.34.1
Hi Philippe,
If possible, can this one catch a ride with your PULL too?
Many thanks!
Zhao
On Mon, Jul 15, 2024 at 05:59:37PM +0800, Zhao Liu wrote:
> Date: Mon, 15 Jul 2024 17:59:37 +0800
> From: Zhao Liu <zhao1.liu@intel.com>
> Subject: [PATCH] hw/nubus/nubus-virtio-mmio: Fix missing ERRP_GUARD() in
> nubus_virtio_mmio_realize()
> X-Mailer: git-send-email 2.34.1
>
> As the comment in qapi/error, dereferencing @errp requires
> ERRP_GUARD():
>
> * = Why, when and how to use ERRP_GUARD() =
> *
> * Without ERRP_GUARD(), use of the @errp parameter is restricted:
> * - It must not be dereferenced, because it may be null.
> ...
> * ERRP_GUARD() lifts these restrictions.
> *
> * To use ERRP_GUARD(), add it right at the beginning of the function.
> * @errp can then be used without worrying about the argument being
> * NULL or &error_fatal.
> *
> * Using it when it's not needed is safe, but please avoid cluttering
> * the source with useless code.
>
> But in nubus_virtio_mmio_realize(), @errp is dereferenced without
> ERRP_GUARD().
>
> Although nubus_virtio_mmio_realize() - as a DeviceClass.realize()
> method - doesn't get the NULL @errp parameter, it hasn't triggered the
> bug that dereferencing the NULL @errp. It's still necessary to follow
> the requirement of @errp, so add missing ERRP_GUARD() in
> nubus_virtio_mmio_realize().
>
> Cc: Laurent Vivier <laurent@vivier.eu>
> Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> ---
> hw/nubus/nubus-virtio-mmio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/nubus/nubus-virtio-mmio.c b/hw/nubus/nubus-virtio-mmio.c
> index 58a63c84d0be..a5558d3ec28b 100644
> --- a/hw/nubus/nubus-virtio-mmio.c
> +++ b/hw/nubus/nubus-virtio-mmio.c
> @@ -23,6 +23,7 @@ static void nubus_virtio_mmio_set_input_irq(void *opaque, int n, int level)
>
> static void nubus_virtio_mmio_realize(DeviceState *dev, Error **errp)
> {
> + ERRP_GUARD();
> NubusVirtioMMIODeviceClass *nvmdc = NUBUS_VIRTIO_MMIO_GET_CLASS(dev);
> NubusVirtioMMIO *s = NUBUS_VIRTIO_MMIO(dev);
> NubusDevice *nd = NUBUS_DEVICE(dev);
> --
> 2.34.1
>
As the comment in qapi/error, dereferencing @errp requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
* - It must not be dereferenced, because it may be null.
...
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
*
* Using it when it's not needed is safe, but please avoid cluttering
* the source with useless code.
Though vhost_vdpa_device_realize() is called at DeviceClass.realize()
context and won't get NULL @errp, it's still better to follow the
requirement to add the ERRP_GUARD().
But qemu_open() and vhost_vdpa_device_get_u32()'s return values can
distinguish between successful and unsuccessful calls, so check the
return values directly without dereferencing @errp, which eliminates
the need of ERRP_GUARD().
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Eugenio Pérez" <eperezma@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
hw/virtio/vdpa-dev.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
index 64b96b226c39..7b439efdc1d3 100644
--- a/hw/virtio/vdpa-dev.c
+++ b/hw/virtio/vdpa-dev.c
@@ -50,6 +50,7 @@ vhost_vdpa_device_get_u32(int fd, unsigned long int cmd, Error **errp)
static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
{
+ ERRP_GUARD();
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VhostVdpaDevice *v = VHOST_VDPA_DEVICE(vdev);
struct vhost_vdpa_iova_range iova_range;
@@ -63,19 +64,19 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
}
v->vhostfd = qemu_open(v->vhostdev, O_RDWR, errp);
- if (*errp) {
+ if (v->vhostfd < 0) {
return;
}
v->vdev_id = vhost_vdpa_device_get_u32(v->vhostfd,
VHOST_VDPA_GET_DEVICE_ID, errp);
- if (*errp) {
+ if (v->vdev_id < 0) {
goto out;
}
max_queue_size = vhost_vdpa_device_get_u32(v->vhostfd,
VHOST_VDPA_GET_VRING_NUM, errp);
- if (*errp) {
+ if (max_queue_size < 0) {
goto out;
}
@@ -89,7 +90,7 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
v->num_queues = vhost_vdpa_device_get_u32(v->vhostfd,
VHOST_VDPA_GET_VQS_COUNT, errp);
- if (*errp) {
+ if (v->num_queues < 0) {
goto out;
}
@@ -127,7 +128,7 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
v->config_size = vhost_vdpa_device_get_u32(v->vhostfd,
VHOST_VDPA_GET_CONFIG_SIZE,
errp);
- if (*errp) {
+ if (v->config_size < 0) {
goto vhost_cleanup;
}
--
2.34.1
On Mon, Jul 15, 2024 at 11:45 AM Zhao Liu <zhao1.liu@intel.com> wrote:
>
> As the comment in qapi/error, dereferencing @errp requires
> ERRP_GUARD():
>
> * = Why, when and how to use ERRP_GUARD() =
> *
> * Without ERRP_GUARD(), use of the @errp parameter is restricted:
> * - It must not be dereferenced, because it may be null.
> ...
> * ERRP_GUARD() lifts these restrictions.
> *
> * To use ERRP_GUARD(), add it right at the beginning of the function.
> * @errp can then be used without worrying about the argument being
> * NULL or &error_fatal.
> *
> * Using it when it's not needed is safe, but please avoid cluttering
> * the source with useless code.
>
> Though vhost_vdpa_device_realize() is called at DeviceClass.realize()
> context and won't get NULL @errp, it's still better to follow the
> requirement to add the ERRP_GUARD().
>
> But qemu_open() and vhost_vdpa_device_get_u32()'s return values can
> distinguish between successful and unsuccessful calls, so check the
> return values directly without dereferencing @errp, which eliminates
> the need of ERRP_GUARD().
>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: "Eugenio Pérez" <eperezma@redhat.com>
> Cc: Jason Wang <jasowang@redhat.com>
> Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> ---
> hw/virtio/vdpa-dev.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
> index 64b96b226c39..7b439efdc1d3 100644
> --- a/hw/virtio/vdpa-dev.c
> +++ b/hw/virtio/vdpa-dev.c
> @@ -50,6 +50,7 @@ vhost_vdpa_device_get_u32(int fd, unsigned long int cmd, Error **errp)
>
> static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
> {
> + ERRP_GUARD();
Good catch, thank you! But removing the err dereferencing eliminates
the need for ERRP_GUARD(), doesn't it?
Thanks!
> VirtIODevice *vdev = VIRTIO_DEVICE(dev);
> VhostVdpaDevice *v = VHOST_VDPA_DEVICE(vdev);
> struct vhost_vdpa_iova_range iova_range;
> @@ -63,19 +64,19 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
> }
>
> v->vhostfd = qemu_open(v->vhostdev, O_RDWR, errp);
> - if (*errp) {
> + if (v->vhostfd < 0) {
> return;
> }
>
> v->vdev_id = vhost_vdpa_device_get_u32(v->vhostfd,
> VHOST_VDPA_GET_DEVICE_ID, errp);
> - if (*errp) {
> + if (v->vdev_id < 0) {
> goto out;
> }
>
> max_queue_size = vhost_vdpa_device_get_u32(v->vhostfd,
> VHOST_VDPA_GET_VRING_NUM, errp);
> - if (*errp) {
> + if (max_queue_size < 0) {
> goto out;
> }
>
> @@ -89,7 +90,7 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
>
> v->num_queues = vhost_vdpa_device_get_u32(v->vhostfd,
> VHOST_VDPA_GET_VQS_COUNT, errp);
> - if (*errp) {
> + if (v->num_queues < 0) {
> goto out;
> }
>
> @@ -127,7 +128,7 @@ static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
> v->config_size = vhost_vdpa_device_get_u32(v->vhostfd,
> VHOST_VDPA_GET_CONFIG_SIZE,
> errp);
> - if (*errp) {
> + if (v->config_size < 0) {
> goto vhost_cleanup;
> }
>
> --
> 2.34.1
>
On Mon, Jul 15, 2024 at 11:01:08PM +0200, Eugenio Perez Martin wrote:
> Date: Mon, 15 Jul 2024 23:01:08 +0200
> From: Eugenio Perez Martin <eperezma@redhat.com>
> Subject: Re: [PATCH] hw/virtio/vdpa-dev: Check returned value instead of
> dereferencing @errp
>
> On Mon, Jul 15, 2024 at 11:45 AM Zhao Liu <zhao1.liu@intel.com> wrote:
> >
> > As the comment in qapi/error, dereferencing @errp requires
> > ERRP_GUARD():
> >
> > * = Why, when and how to use ERRP_GUARD() =
> > *
> > * Without ERRP_GUARD(), use of the @errp parameter is restricted:
> > * - It must not be dereferenced, because it may be null.
> > ...
> > * ERRP_GUARD() lifts these restrictions.
> > *
> > * To use ERRP_GUARD(), add it right at the beginning of the function.
> > * @errp can then be used without worrying about the argument being
> > * NULL or &error_fatal.
> > *
> > * Using it when it's not needed is safe, but please avoid cluttering
> > * the source with useless code.
> >
> > Though vhost_vdpa_device_realize() is called at DeviceClass.realize()
> > context and won't get NULL @errp, it's still better to follow the
> > requirement to add the ERRP_GUARD().
> >
> > But qemu_open() and vhost_vdpa_device_get_u32()'s return values can
> > distinguish between successful and unsuccessful calls, so check the
> > return values directly without dereferencing @errp, which eliminates
> > the need of ERRP_GUARD().
> >
> > Cc: "Michael S. Tsirkin" <mst@redhat.com>
> > Cc: "Eugenio Pérez" <eperezma@redhat.com>
> > Cc: Jason Wang <jasowang@redhat.com>
> > Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> > ---
> > hw/virtio/vdpa-dev.c | 11 ++++++-----
> > 1 file changed, 6 insertions(+), 5 deletions(-)
> >
> > diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
> > index 64b96b226c39..7b439efdc1d3 100644
> > --- a/hw/virtio/vdpa-dev.c
> > +++ b/hw/virtio/vdpa-dev.c
> > @@ -50,6 +50,7 @@ vhost_vdpa_device_get_u32(int fd, unsigned long int cmd, Error **errp)
> >
> > static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
> > {
> > + ERRP_GUARD();
>
> Good catch, thank you! But removing the err dereferencing eliminates
> the need for ERRP_GUARD(), doesn't it?
>
Thanks Eugenio! You're right and I forgot to delete it. I'll post a new
version.
On Tue, Jul 16, 2024 at 5:05 AM Zhao Liu <zhao1.liu@intel.com> wrote:
>
> On Mon, Jul 15, 2024 at 11:01:08PM +0200, Eugenio Perez Martin wrote:
> > Date: Mon, 15 Jul 2024 23:01:08 +0200
> > From: Eugenio Perez Martin <eperezma@redhat.com>
> > Subject: Re: [PATCH] hw/virtio/vdpa-dev: Check returned value instead of
> > dereferencing @errp
> >
> > On Mon, Jul 15, 2024 at 11:45 AM Zhao Liu <zhao1.liu@intel.com> wrote:
> > >
> > > As the comment in qapi/error, dereferencing @errp requires
> > > ERRP_GUARD():
> > >
> > > * = Why, when and how to use ERRP_GUARD() =
> > > *
> > > * Without ERRP_GUARD(), use of the @errp parameter is restricted:
> > > * - It must not be dereferenced, because it may be null.
> > > ...
> > > * ERRP_GUARD() lifts these restrictions.
> > > *
> > > * To use ERRP_GUARD(), add it right at the beginning of the function.
> > > * @errp can then be used without worrying about the argument being
> > > * NULL or &error_fatal.
> > > *
> > > * Using it when it's not needed is safe, but please avoid cluttering
> > > * the source with useless code.
> > >
> > > Though vhost_vdpa_device_realize() is called at DeviceClass.realize()
> > > context and won't get NULL @errp, it's still better to follow the
> > > requirement to add the ERRP_GUARD().
> > >
> > > But qemu_open() and vhost_vdpa_device_get_u32()'s return values can
> > > distinguish between successful and unsuccessful calls, so check the
> > > return values directly without dereferencing @errp, which eliminates
> > > the need of ERRP_GUARD().
> > >
> > > Cc: "Michael S. Tsirkin" <mst@redhat.com>
> > > Cc: "Eugenio Pérez" <eperezma@redhat.com>
> > > Cc: Jason Wang <jasowang@redhat.com>
> > > Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> > > ---
> > > hw/virtio/vdpa-dev.c | 11 ++++++-----
> > > 1 file changed, 6 insertions(+), 5 deletions(-)
> > >
> > > diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
> > > index 64b96b226c39..7b439efdc1d3 100644
> > > --- a/hw/virtio/vdpa-dev.c
> > > +++ b/hw/virtio/vdpa-dev.c
> > > @@ -50,6 +50,7 @@ vhost_vdpa_device_get_u32(int fd, unsigned long int cmd, Error **errp)
> > >
> > > static void vhost_vdpa_device_realize(DeviceState *dev, Error **errp)
> > > {
> > > + ERRP_GUARD();
> >
> > Good catch, thank you! But removing the err dereferencing eliminates
> > the need for ERRP_GUARD(), doesn't it?
> >
>
> Thanks Eugenio! You're right and I forgot to delete it. I'll post a new
> version.
>
>
Good! With that removed,
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Thanks!
As the comment in qapi/error, dereferencing @errp requires
ERRP_GUARD():
* = Why, when and how to use ERRP_GUARD() =
*
* Without ERRP_GUARD(), use of the @errp parameter is restricted:
* - It must not be dereferenced, because it may be null.
...
* ERRP_GUARD() lifts these restrictions.
*
* To use ERRP_GUARD(), add it right at the beginning of the function.
* @errp can then be used without worrying about the argument being
* NULL or &error_fatal.
*
* Using it when it's not needed is safe, but please avoid cluttering
* the source with useless code.
Though currently ga_run_command() only gets &local_err instead of NULL
@errp, it's still better to follow the requirement to add the
ERRP_GUARD().
But as error.h suggested, the best practice for callee is to return
something to indicate success / failure.
So make ga_wait_child() return boolean and check the returned boolean in
ga_run_command() instead of dereferencing @errp, which eliminates the
need of ERRP_GUARD().
Cc: Michael Roth <michael.roth@amd.com>
Cc: Konstantin Kostiuk <kkostiuk@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
qga/commands-posix.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 7f05996495a2..64bb0be94479 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -59,7 +59,7 @@
#endif
#endif
-static void ga_wait_child(pid_t pid, int *status, Error **errp)
+static bool ga_wait_child(pid_t pid, int *status, Error **errp)
{
pid_t rpid;
@@ -70,10 +70,11 @@ static void ga_wait_child(pid_t pid, int *status, Error **errp)
if (rpid == -1) {
error_setg_errno(errp, errno, "failed to wait for child (pid: %d)",
pid);
- return;
+ return false;
}
g_assert(rpid == pid);
+ return true;
}
static ssize_t ga_pipe_read_str(int fd[2], char **str)
@@ -178,8 +179,7 @@ static int ga_run_command(const char *argv[], const char *in_str,
goto out;
}
- ga_wait_child(pid, &status, errp);
- if (*errp) {
+ if (!ga_wait_child(pid, &status, errp)) {
goto out;
}
--
2.34.1On 15/7/24 11:59, Zhao Liu wrote:
> As the comment in qapi/error, dereferencing @errp requires
> ERRP_GUARD():
>
> * = Why, when and how to use ERRP_GUARD() =
> *
> * Without ERRP_GUARD(), use of the @errp parameter is restricted:
> * - It must not be dereferenced, because it may be null.
> ...
> * ERRP_GUARD() lifts these restrictions.
> *
> * To use ERRP_GUARD(), add it right at the beginning of the function.
> * @errp can then be used without worrying about the argument being
> * NULL or &error_fatal.
> *
> * Using it when it's not needed is safe, but please avoid cluttering
> * the source with useless code.
>
> Though currently ga_run_command() only gets &local_err instead of NULL
> @errp, it's still better to follow the requirement to add the
> ERRP_GUARD().
>
> But as error.h suggested, the best practice for callee is to return
> something to indicate success / failure.
>
> So make ga_wait_child() return boolean and check the returned boolean in
> ga_run_command() instead of dereferencing @errp, which eliminates the
> need of ERRP_GUARD().
I'd avoid mentioning ERRP_GUARD and just describe:
Make ga_wait_child() return boolean and check the returned boolean
in ga_run_command() instead of dereferencing @errp.
For the code change:
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Cc: Michael Roth <michael.roth@amd.com>
> Cc: Konstantin Kostiuk <kkostiuk@redhat.com>
> Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> ---
> qga/commands-posix.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index 7f05996495a2..64bb0be94479 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -59,7 +59,7 @@
> #endif
> #endif
>
> -static void ga_wait_child(pid_t pid, int *status, Error **errp)
> +static bool ga_wait_child(pid_t pid, int *status, Error **errp)
> {
> pid_t rpid;
>
> @@ -70,10 +70,11 @@ static void ga_wait_child(pid_t pid, int *status, Error **errp)
> if (rpid == -1) {
> error_setg_errno(errp, errno, "failed to wait for child (pid: %d)",
> pid);
> - return;
> + return false;
> }
>
> g_assert(rpid == pid);
> + return true;
> }
>
> static ssize_t ga_pipe_read_str(int fd[2], char **str)
> @@ -178,8 +179,7 @@ static int ga_run_command(const char *argv[], const char *in_str,
> goto out;
> }
>
> - ga_wait_child(pid, &status, errp);
> - if (*errp) {
> + if (!ga_wait_child(pid, &status, errp)) {
> goto out;
> }
>
On Mon, Jul 15, 2024 at 11:59:29AM +0200, Philippe Mathieu-Daudé wrote: > Date: Mon, 15 Jul 2024 11:59:29 +0200 > From: Philippe Mathieu-Daudé <philmd@linaro.org> > Subject: Re: [PATCH] qga/commands-posix: Make ga_wait_child() return boolean > > On 15/7/24 11:59, Zhao Liu wrote: > > As the comment in qapi/error, dereferencing @errp requires > > ERRP_GUARD(): > > > > * = Why, when and how to use ERRP_GUARD() = > > * > > * Without ERRP_GUARD(), use of the @errp parameter is restricted: > > * - It must not be dereferenced, because it may be null. > > ... > > * ERRP_GUARD() lifts these restrictions. > > * > > * To use ERRP_GUARD(), add it right at the beginning of the function. > > * @errp can then be used without worrying about the argument being > > * NULL or &error_fatal. > > * > > * Using it when it's not needed is safe, but please avoid cluttering > > * the source with useless code. > > > > Though currently ga_run_command() only gets &local_err instead of NULL > > @errp, it's still better to follow the requirement to add the > > ERRP_GUARD(). > > > > But as error.h suggested, the best practice for callee is to return > > something to indicate success / failure. > > > > So make ga_wait_child() return boolean and check the returned boolean in > > ga_run_command() instead of dereferencing @errp, which eliminates the > > need of ERRP_GUARD(). > > I'd avoid mentioning ERRP_GUARD and just describe: > > Make ga_wait_child() return boolean and check the returned boolean > in ga_run_command() instead of dereferencing @errp. > > For the code change: > > Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Many thanks for your words and review! Will use your words in the next version.
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