Our downstream patch "net/core: add optional threading for backlog processing"
has been broken with the switch to Linux 6.6.
Replace it by backporting the now available upstream solution.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://github.com/openwrt/openwrt/pull/15592
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>