From: Toshiaki Makita <[email protected]>
Date: Mon, 28 May 2018 19:37:49 +0900
> Calling XDP redirection requires bh disabled. Softirq can call another
> XDP function and redirection functions, then the percpu static variable
> ri->map can be overwritten to NULL.
...
> v2:
> - Removed preempt_disable/enable since local_bh_disable will prevent
> preemption as well, feedback from Jason Wang.
>
> Fixes: 761876c857cb ("tap: XDP support")
> Signed-off-by: Toshiaki Makita <[email protected]>
Applied and queued up for -stable.
