Good day,
On Fri, Jun 04, 2021 at 11:14:04AM +0200, Arnaud Pouliquen wrote:
> Implement the RPMSG_RELEASE_DEV_IOCTL to allow the user application to
> release a rpmsg device created either by the remote processor or with
> the RPMSG_CREATE_DEV_IOCTL call.
> Depending on the back-end implementation, the associated rpmsg driver is
> removed and a NS destroy rpmsg can be sent to the remote processor.
>
> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
> ---
> drivers/rpmsg/rpmsg_ctrl.c | 7 +++++++
> include/uapi/linux/rpmsg.h | 5 +++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/drivers/rpmsg/rpmsg_ctrl.c b/drivers/rpmsg/rpmsg_ctrl.c
> index 4aa962df3661..cb19e32d05e1 100644
> --- a/drivers/rpmsg/rpmsg_ctrl.c
> +++ b/drivers/rpmsg/rpmsg_ctrl.c
> @@ -98,6 +98,13 @@ static long rpmsg_ctrldev_ioctl(struct file *fp, unsigned int cmd,
> }
> break;
>
> + case RPMSG_RELEASE_DEV_IOCTL:
> + ret = rpmsg_release_channel(ctrldev->rpdev, &chinfo);
> + if (ret)
> + dev_err(&ctrldev->dev, "failed to release %s channel (%d)\n",
> + chinfo.name, ret);
> + break;
> +
Please move the content of this patch in 1/4.
> default:
> ret = -EINVAL;
> }
> diff --git a/include/uapi/linux/rpmsg.h b/include/uapi/linux/rpmsg.h
> index f9d5a74e7801..38639ba37438 100644
> --- a/include/uapi/linux/rpmsg.h
> +++ b/include/uapi/linux/rpmsg.h
> @@ -38,4 +38,9 @@ struct rpmsg_endpoint_info {
> */
> #define RPMSG_CREATE_DEV_IOCTL _IOW(0xb5, 0x3, struct rpmsg_endpoint_info)
>
> +/**
> + * Release a local rpmsg device.
> + */
> +#define RPMSG_RELEASE_DEV_IOCTL _IOW(0xb5, 0x4, struct rpmsg_endpoint_info)
> +
> #endif
> --
> 2.17.1
>
