rtnl_is_locked() checks whether the lock is currently held by any task,
not specifically by _this_ task so it is wrong to use it in the
(un)register path.
In both of these cases, examining the call stack shows that there is no
way for rtnl_lock to be taken by the task running these functions, so
remove the checks.
Further, (un)register_netdev() have existed since the beginning of Git
history so there's no reason for a version check here and we can always
call the function that takes the lock itself and should never call the
version which expects rtnl_lock to be held.
This repository contains the Realtek driver V5.1.1.5_20523.20161209_BTCOEX20161208-1212.
At inclusion, the only changes from the Realtek version were to fix any compile
warnings or errors. With these changes, the driver builds on kernels through
4.11.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
