From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-x241.google.com (mail-it0-x241.google.com [IPv6:2607:f8b0:4001:c0b::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zRt0g5blLzDrSD for ; Thu, 25 Jan 2018 17:48:35 +1100 (AEDT) Received: by mail-it0-x241.google.com with SMTP id p124so8131203ite.1 for ; Wed, 24 Jan 2018 22:48:35 -0800 (PST) Subject: Re: [RFC PATCH v2 0/1] of: easier debugging for node life cycle issues To: Wolfram Sang , devicetree@vger.kernel.org Cc: Tyrel Datwyler , Geert Uytterhoeven , linux-renesas-soc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Rob Herring , Steven Rostedt , linux-kernel@vger.kernel.org References: <20180121143117.19805-1-wsa+renesas@sang-engineering.com> From: Frank Rowand Message-ID: <9c03edf1-564b-dd40-bbdf-e21e499869a6@gmail.com> Date: Wed, 24 Jan 2018 22:48:31 -0800 MIME-Version: 1.0 In-Reply-To: <20180121143117.19805-1-wsa+renesas@sang-engineering.com> Content-Type: text/plain; charset=utf-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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. It's been nine months since version 1. If you are going to include the dynamic updates part of the patch then please test them. > 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. I am OK with the line length warnings in this patch. Why can't the macro error be fixed? A file entry needs to be added to MAINTAINERS. > > 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 >