linux-kernel - Re: [PATCH] tools lib traceevent: Add support for IP address formats

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Message-ID: <5498506A.4010100@gmail.com>
Date:	Mon, 22 Dec 2014 10:10:02 -0700
From:	David Ahern <dsahern@...il.com>
To:	Jiri Olsa <jolsa@...hat.com>
CC:	Valdis.Kletnieks@...edu, acme@...nel.org,
	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH] tools lib traceevent: Add support for IP address formats

On 12/22/14 10:01 AM, Jiri Olsa wrote:
> apart from your tracepoints, is there another tracepoint using this?
> I couldn't find any.. I dont think it's a problem.. just wanted to
> try it;-)

grrr... i was hoping no one would ask that question. I am not aware of 
any in tree. We use it locally in custom tracepoints in the networking 
stack (from what I can tell netdev will not take -- LTTng tried many 
years ago) and in a couple of klms.

The attached patch is what I used to test (plus our local versions). It 
is derived from a patch on the 3.4 kernel which allows us to trace 
address changes.

David

View attachment "tracepoints-to-test-IP-address-format-output.patch" of type "text/plain" (5420 bytes)