Merge branch 'netconsole-configfs-store-callback-fixes'

Breno Leitao says:

====================
netconsole: configfs store callback fixes

There are still some changes I want to make, such as, having the dynamic
lock when reading from configfs (_show() callbacks), wich will solve
other issues, but I will keep it for later.
====================

Link: https://patch.msgid.link/20260427-netconsole_ai_fixes-v2-0-59965f29d9cc@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>