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SubjectRe: [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues
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On 01/21/18 06:31, Wolfram Sang wrote:
> I got a bug report for a DT node refcounting problem in the I2C subsystem. This
> patch was a huge help in validating the bug report and the proposed solution.
> So, I thought I bring it to attention again. Thanks Tyrel, for the initial
> work!
>
> Note that I did not test the dynamic updates, only of_node_{get|put} so far. I
> read that Tyrel checked dynamic updates extensively with this patch. And since
> DT overlays are also used within our Renesas dev team, this will help there, as
> well.
>
> Tested on a Renesas Salvator-XS board (R-Car H3).
>
> Changes since RFC v1:
> * rebased to v4.15-rc8
> * fixed commit abbrev and one of the sysfs paths in commit desc
> * removed trailing space and fixed pointer declaration in code
>
> I consider all the remaining checkpatch issues irrelevant for this patch.
>
> So what about applying it?
>
> Kind regards,
>
> Wolfram
>
>
> Tyrel Datwyler (1):
> of: introduce event tracepoints for dynamic device_node lifecyle
>
> drivers/of/dynamic.c | 32 ++++++----------
> include/trace/events/of.h | 93 +++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 105 insertions(+), 20 deletions(-)
> create mode 100644 include/trace/events/of.h
>

Please go back and read the thread for version 1. Simply resubmitting a
forward port is ignoring that whole conversation.

There is a lot of good info in that thread. I certainly learned stuff in it.

Thanks,

Frank

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