Satisfy compiler expectations in a hell of typedef's and get rid of
system-wide workqueue flush. Results in warning-free compile of the TAPI
driver also with Linux 6.6.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://github.com/openwrt/openwrt/pull/15811
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>