__sk_mem_schedule (9) - increase sk_forward_alloc and memory_allocated
dev_forward_skb (9)  - loopback an skb to another netif
git-rebase (1)       - Forward-port local commits to the updated upstream head
hrtimer_forward (9)  - forward the timer expiry
hrtimer_forward_now (9) - forward the timer expiry so it expires after now
irq_set_irqchip_state (9) - set the state of a forwarded interrupt.
Mail::Message::Construct::Forward (3pm) - forwarding a Mail::Message
pam_xauth (8)        - PAM module to forward xauth keys between users