On 9/7/22 19:35, Daniel Walker wrote:
> On Wed, Sep 07, 2022 at 06:54:02PM -0500, Frank Rowand wrote:
>> On 9/7/22 18:07, Daniel Walker wrote:
>>> This warning message shows by default on the vast majority of overlays
>>> applied. Despite the text identifying this as a warning it is marked
>>> with the loglevel for error. At Cisco we filter the loglevels to only
>>> show error messages. We end up seeing this message but it's not really
>>> an error.
>>>
>>> For this reason it makes sense to demote the message to the warning
>>> loglevel.
>>>
>>> Cc: xe-linux-external@xxxxxxxxx
>>> Signed-off-by: Daniel Walker <danielwa@xxxxxxxxx>
>>> ---
>>> drivers/of/overlay.c | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
>>> index bd8ff4df723d..4ae276ed9a65 100644
>>> --- a/drivers/of/overlay.c
>>> +++ b/drivers/of/overlay.c
>>> @@ -358,7 +358,7 @@ static int add_changeset_property(struct overlay_changeset *ovcs,
>>> }
>>>
>>> if (!of_node_check_flag(target->np, OF_OVERLAY))
>>> - pr_err("WARNING: memory leak will occur if overlay removed, property: %pOF/%s\n",
>>> + pr_warn("WARNING: memory leak will occur if overlay removed, property: %pOF/%s\n",
>>> target->np, new_prop->name);
>>>
>>> if (ret) {
>>
>> NACK
>>
>> This is showing a real problem with the overlay.
>
> What's the real problem ?
>
> Daniel
A memory leak when the overlay is removed.
I'll send a patch to update the overlay file in Documumentation/devicetree/ to provide
more information about this. If you don't see a patch by tomorrow, feel free to
ping me.
-Frank
