Re: [PATCH v6 3/4] net: dropreason: use new __print_sym() in tracing
From: Matthieu Baerts
Date: Mon Sep 21 2026 - 18:03:57 EST
Hi Johannes,
(+Cc openvswitch devs)
On 21/09/2026 12:06, Johannes Berg wrote:
> From: Johannes Berg <johannes.berg@xxxxxxxxx>
>
> The __print_symbolic() could only ever print the core
> drop reasons, since that's the way the infrastructure
> works. Now that we have __print_sym() with all the
> advantages mentioned in that commit, convert to that
> and get all the drop reasons from all subsystems. As
> we already have a list of them, that's really easy.
>
> This is a little bit of .text (~100 bytes in my build)
> and saves a lot of .data (~17k).
Thank you for working on that! But it looks like it breaks the
openvswitch test:
https://netdev-ctrl.bots.linux.dev/logview.html?f=%2Flogs%2Fvmksft%2Fnet%2Fresults%2F833743%2F9-openvswitch-sh%2Fstdout#L168
Maybe the test needs to be adapted to get the same info differently?
(and adding CONFIG_TRACEPOINTS to the selftest config file)
Cheers,
Matt