netdev - Re: [PATCH] net: add net namespace inode for all net

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Message-ID: <20210310113112.743dcf17@gandalf.local.home>
Date:   Wed, 10 Mar 2021 11:31:12 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Tony Lu <tonylu@...ux.alibaba.com>
Cc:     davem@...emloft.net, mingo@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: add net namespace inode for all net_dev events

On Wed, 10 Mar 2021 17:03:40 +0800
Tony Lu <tonylu@...ux.alibaba.com> wrote:

> I use pahole to read vmlinux.o directly with defconfig and
> CONFIG_DEBUG_INFO enabled, the result shows 22 structs prefixed with
> trace_event_raw_ that have at least one hole.

I was thinking of pahole too ;-)

But the information can also be captured from the format files with simple
scripts as well. And perhaps be more tuned to see if there's actually a fix
for them, and ignore reporting it if there is no fix, as all trace events
are 4 byte aligned, and if we are off by one, sometimes it doesn't matter.

-- Steve