rpmsg: Move helper for finding rpmsg devices to core
Extract and move the helper function for finding rpmsg child devices to
the core.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 1846632..488fd93 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -35,6 +35,8 @@
#include <linux/mutex.h>
#include <linux/of_device.h>
+#include "rpmsg_internal.h"
+
/**
* struct virtproc_info - virtual remote processor state
* @vdev: the virtio device
@@ -452,29 +454,6 @@
kfree(rpdev);
}
-/*
- * match an rpmsg channel with a channel info struct.
- * this is used to make sure we're not creating rpmsg devices for channels
- * that already exist.
- */
-static int rpmsg_device_match(struct device *dev, void *data)
-{
- struct rpmsg_channel_info *chinfo = data;
- struct rpmsg_device *rpdev = to_rpmsg_device(dev);
-
- if (chinfo->src != RPMSG_ADDR_ANY && chinfo->src != rpdev->src)
- return 0;
-
- if (chinfo->dst != RPMSG_ADDR_ANY && chinfo->dst != rpdev->dst)
- return 0;
-
- if (strncmp(chinfo->name, rpdev->id.name, RPMSG_NAME_SIZE))
- return 0;
-
- /* found a match ! */
- return 1;
-}
-
static const struct rpmsg_device_ops virtio_rpmsg_ops = {
.create_ept = virtio_rpmsg_create_ept,
.announce_create = virtio_rpmsg_announce_create,
@@ -494,7 +473,7 @@
int ret;
/* make sure a similar channel doesn't already exist */
- tmp = device_find_child(dev, chinfo, rpmsg_device_match);
+ tmp = rpmsg_find_device(dev, chinfo);
if (tmp) {
/* decrement the matched device's refcount back */
put_device(tmp);
@@ -547,7 +526,7 @@
struct virtio_device *vdev = vrp->vdev;
struct device *dev;
- dev = device_find_child(&vdev->dev, chinfo, rpmsg_device_match);
+ dev = rpmsg_find_device(&vdev->dev, chinfo);
if (!dev)
return -EINVAL;