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| author |   Frank Rowand <frank.rowand@sony.com> | 2017-07-19 09:25:21 -0700 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2017-07-20 09:36:15 -0500 |
| commit | c1cd1e01fece0c139a7946c14b788f887d8b658a (patch) | |
| tree | 68c3a0d182a1bc06b25638fb72c5cb468692fd8e /drivers/of | |
| parent | of: overlay: add overlay unittest data for node names and symbols (diff) | |
| download | linux-dev-c1cd1e01fece0c139a7946c14b788f887d8b658a.tar.xz linux-dev-c1cd1e01fece0c139a7946c14b788f887d8b658a.zip | |
of: overlay: correctly apply overlay node with unit-address
Correct existing node name detection when overlay node name has
a unit-address.
Expected test result is overlay will update the nodes and properties
for /testcase-data-2/fairway-1/ride@100/ after this commit.
Before this commit:
Console error message near end of unittest:
OF: Duplicate name in fairway-1, renamed to "ride@100#1"
$ cd /proc/device-tree/testcase-data-2/fairway-1/
$ # extra node: ride@100#1
$ ls
#address-cells linux,phandle phandle ride@200
#size-cells name ride@100 status
compatible orientation ride@100#1
$ cd /proc/device-tree/testcase-data-2/fairway-1/ride@100/
$ ls track@30/incline-up
ls: track@30/incline-up: No such file or directory
$ ls track@40/incline-up
ls: track@40/incline-up: No such file or directory
After this commit:
Console error message no longer occurs
$ cd /proc/device-tree/testcase-data-2/fairway-1/
$ # no extra node: ride@100#1
$ ls
#address-cells compatible name phandle ride@200
#size-cells linux,phandle orientation ride@100 status
$ cd /proc/device-tree/testcase-data-2/fairway-1/ride@100/
$ ls track@30/incline-up
track@30/incline-up
$ ls track@40/incline-up
track@40/incline-up
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/overlay.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index 0ddffebd7838..fbe1980accb6 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -130,7 +130,10 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov, return -ENOMEM; /* NOTE: Multiple mods of created nodes not supported */ - tchild = of_get_child_by_name(target, cname); + for_each_child_of_node(target, tchild) + if (!of_node_cmp(cname, kbasename(tchild->full_name))) + break; + if (tchild != NULL) { /* new overlay phandle value conflicts with existing value */ if (child->phandle) |