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Date:   Mon, 20 Sep 2021 13:24:40 -0400
From:   Steven Rostedt <>
To:     Cong Wang <>
Cc:     Zhongya Yan <>,
        Eric Dumazet <>,
        Brendan Gregg <>,
        Linux Kernel Network Developers <>,
        LKML <>,
        Jakub Kicinski <>,
        Ingo Molnar <>,
        David Miller <>,
        Hideaki YOSHIFUJI <>,
        David Ahern <>, Yonghong Song <>,
        Zhongya Yan <>
Subject: Re: [PATCH] tcp: tcp_drop adds `SNMP` and `reason` parameter for

On Mon, 20 Sep 2021 10:20:33 -0700
Cong Wang <> wrote:

> > The strings were requested by the networking maintainers.
> >
> >  
> I think you misunderstand my point. Eric's point is hex address
> vs. string, which I never disagree. With SNMP enum, user-space
> can easily interpret it to string too, so at the end you still get strings
> but not from kernel. This would at least save a handful of strings
> from vmlinux, especially if we expand it beyond TCP.

If an enum is saved in the ring buffer, it is also trivial to have it
show a string in the buffer, as there's a way to map enums to strings
on output as well. Which I discussed in that same thread.

-- Steve

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