linux-kernel - [PATCH v2 7/9] rpmsg: virtio: Add rpmsg channel device ops

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20201013232519.1367542-8-mathieu.poirier@linaro.org>
Date:   Tue, 13 Oct 2020 17:25:17 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org
Cc:     guennadi.liakhovetski@...ux.intel.com, arnaud.pouliquen@...com,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 7/9] rpmsg: virtio: Add rpmsg channel device ops

From: Arnaud Pouliquen <arnaud.pouliquen@...com>

Implement the create and release of the RPMsg channel
for the RPMsg virtio bus.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/rpmsg/virtio_rpmsg_bus.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index fca982b61c3b..1488b9ddc18d 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -122,6 +122,8 @@ static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
 				  int len, u32 dst);
 static int virtio_rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src,
 					   u32 dst, void *data, int len);
+static struct rpmsg_device * __rpmsg_create_channel(struct virtproc_info *vrp,
+						    struct rpmsg_channel_info *chinfo);
 
 static const struct rpmsg_endpoint_ops virtio_endpoint_ops = {
 	.destroy_ept = virtio_rpmsg_destroy_ept,
@@ -234,6 +236,24 @@ static bool virtio_rpmsg_is_little_endian(struct rpmsg_device *rpdev)
 	return virtio_is_little_endian(vrp->vdev);
 }
 
+static struct rpmsg_device *virtio_rpmsg_create_channel(struct rpmsg_device *rpdev,
+							struct rpmsg_channel_info *chinfo)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return __rpmsg_create_channel(vrp, chinfo);
+}
+
+static int virtio_rpmsg_release_channel(struct rpmsg_device *rpdev,
+					struct rpmsg_channel_info *chinfo)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return rpmsg_unregister_device(&vrp->vdev->dev, chinfo);
+}
+
 static struct rpmsg_endpoint *virtio_rpmsg_create_ept(struct rpmsg_device *rpdev,
 						      rpmsg_rx_cb_t cb,
 						      void *priv,
@@ -327,6 +347,8 @@ static int virtio_rpmsg_announce_destroy(struct rpmsg_device *rpdev)
 
 static const struct rpmsg_device_ops virtio_rpmsg_ops = {
 	.is_little_endian = virtio_rpmsg_is_little_endian,
+	.create_channel = virtio_rpmsg_create_channel,
+	.release_channel = virtio_rpmsg_release_channel,
 	.create_ept = virtio_rpmsg_create_ept,
 	.announce_create = virtio_rpmsg_announce_create,
 	.announce_destroy = virtio_rpmsg_announce_destroy,
-- 
2.25.1