linux-kernel - Re: [PATCH v1 0/4] Add tracing for SDHCI register access

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Date:   Fri, 19 Apr 2019 15:08:18 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Raul Rangel <rrangel@...omium.org>
Cc:     linux-trace-devel@...r.kernel.org, linux-mmc@...r.kernel.org,
        djkurtz@...omium.org, zwisler@...omium.org,
        Ludovic Barre <ludovic.barre@...com>,
        Jisheng Zhang <Jisheng.Zhang@...aptics.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Faiz Abbas <faiz_abbas@...com>, linux-kernel@...r.kernel.org,
        Oleksij Rempel <linux@...pel-privat.de>,
        Liming Sun <lsun@...lanox.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Ingo Molnar <mingo@...hat.com>,
        Prabu Thangamuthu <Prabu.T@...opsys.com>,
        Chunyan Zhang <chunyan.zhang@...soc.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH v1 0/4] Add tracing for SDHCI register access

On Fri, 19 Apr 2019 12:40:13 -0600
Raul Rangel <rrangel@...omium.org> wrote:

> Steven,
> Since it seems this series won't be accepted upstream, would you still be
> open to accepting patches for trace_print_register? I can work on adding
> support to lib traceevent.

It would require having a user in the kernel code.

If you are going to do something out of tree, simply make a helper
function inside your trace event, and then write a plugin for it if you
want to use it for libtraceevent. It allows for custom plugins.

-- Steve