[PATCH v6 2/4] remoteproc: core: Introduce rproc_add_rvdev function

Arnaud Pouliquen
2022-06-03T16:32:17Z

The rproc structure contains a list of registered rproc_vdev structure.
To be able to move the management of the rproc_vdev structure in
remoteproc_virtio.c (i.e rproc_rvdev_add_device and
rproc_rvdev_remove_device functions), introduce the rproc_add_rvdev
and rproc_remove_rvdev functions.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
Updates vs previous revision (based on Mathieu Poirier's comments):
- Fix function name in commit message and add Mathieu's Reviewed-by.
---
drivers/remoteproc/remoteproc_core.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index c438c32f7f0d..86147efc0aad 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -484,6 +484,18 @@ static int copy_dma_range_map(struct device *to, struct device *from)
return 0;
}

+static void rproc_add_rvdev(struct rproc *rproc, struct rproc_vdev *rvdev)
+{
+ if (rvdev && rproc)
+ list_add_tail(&rvdev->node, &rproc->rvdevs);
+}
+
+static void rproc_remove_rvdev(struct rproc_vdev *rvdev)
+{
+ if (rvdev)
+ list_del(&rvdev->node);
+}
+
static struct rproc_vdev *
rproc_rvdev_add_device(struct rproc *rproc, struct rproc_vdev_data *rvdev_data)
{
@@ -547,7 +559,7 @@ rproc_rvdev_add_device(struct rproc *rproc, struct rproc_vdev_data *rvdev_data)
goto unwind_vring_allocations;
}

- list_add_tail(&rvdev->node, &rproc->rvdevs);
+ rproc_add_rvdev(rproc, rvdev);

rvdev->subdev.start = rproc_vdev_do_start;
rvdev->subdev.stop = rproc_vdev_do_stop;
@@ -577,7 +589,7 @@ void rproc_vdev_release(struct kref *ref)
}

rproc_remove_subdev(rproc, &rvdev->subdev);
- list_del(&rvdev->node);
+ rproc_remove_rvdev(rvdev);
device_unregister(&rvdev->dev);
}

--
2.24.3