linux-kernel - Re: [PATCH] xdp: Remove unused events xdp_redirect_map and xdp_redirect_map

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Message-Id: 
 <174978303251.199960.6452866597649393391.git-patchwork-notify@kernel.org>
Date: Fri, 13 Jun 2025 02:50:32 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 bpf@...r.kernel.org, mhiramat@...nel.org, mathieu.desnoyers@...icios.com,
 ast@...nel.org, daniel@...earbox.net, davem@...emloft.net, kuba@...nel.org,
 hawk@...nel.org, john.fastabend@...il.com
Subject: Re: [PATCH] xdp: Remove unused events xdp_redirect_map and
 xdp_redirect_map_err

Hello:

This patch was applied to bpf/bpf-next.git (net)
by Alexei Starovoitov <ast@...nel.org>:

On Wed, 11 Jun 2025 15:56:15 -0400 you wrote:
> From: Steven Rostedt <rostedt@...dmis.org>
> 
> Each TRACE_EVENT() defined can take up around 5K of text and meta data
> regardless if they are used or not. New code is being developed that will
> warn when a tracepoint is defined but not used.
> 
> The trace events xdp_redirect_map and xdp_redirect_map_err are defined but
> not used, but there's also a comment that states these are kept around for
> backward compatibility. Which is interesting because since they are not
> used, any old BPF program that expects them to exist will get incorrect
> data (no data) when they use them. It's worse than not working, it's
> silently failing.
> 
> [...]

Here is the summary with links:
  - xdp: Remove unused events xdp_redirect_map and xdp_redirect_map_err
    https://git.kernel.org/bpf/bpf-next/c/a9a5f41b04dd

You are awesome, thank you!
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