Re: [PATCH v2 02/17] rpmsg: Name rpmsg devices based on channel id

From: spjoshi
Date: Wed Sep 07 2016 - 21:47:11 EST


On 2016-09-01 15:27, Bjorn Andersson wrote:
By basing rpmsg device names on channel id we end up with human readable
device names in sysfs and debug logs.

Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
---

Changes since v1:
- None

drivers/rpmsg/virtio_rpmsg_bus.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 495fa0a282d3..c4bd89ea7681 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -136,14 +136,6 @@ rpmsg_show_attr(src, src, "0x%x\n");
rpmsg_show_attr(dst, dst, "0x%x\n");
rpmsg_show_attr(announce, announce ? "true" : "false", "%s\n");

-/*
- * Unique (and free running) index for rpmsg devices.
- *
- * Yeah, we're not recycling those numbers (yet?). will be easy
- * to change if/when we want to.
- */
-static unsigned int rpmsg_dev_index;
-
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -531,8 +523,8 @@ static struct rpmsg_channel
*rpmsg_create_channel(struct virtproc_info *vrp,

strncpy(rpdev->id.name, chinfo->name, RPMSG_NAME_SIZE);

- /* very simple device indexing plumbing which is enough for now */
- dev_set_name(&rpdev->dev, "rpmsg%d", rpmsg_dev_index++);
+ dev_set_name(&rpdev->dev, "%s:%s",
+ dev_name(dev->parent), rpdev->id.name);

rpdev->dev.parent = &vrp->vdev->dev;
rpdev->dev.bus = &rpmsg_bus;

Reviewed-by: Sarangdhar Joshi <spjoshi@xxxxxxxxxxxxxx>

Sarang

--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project