bpf: clear sender_cpu before xmit

Similar to commit c29390c6 ("xps: must clear sender_cpu before forwarding")
the skb->sender_cpu needs to be cleared before xmit.

Fixes: 3896d655 ("bpf: introduce bpf_clone_redirect() helper")
Signed-off-by: NAlexei Starovoitov <ast@plumgrid.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/core/filter.c

@@ -1415,6 +1415,7 @@ static u64 bpf_clone_redirect(u64 r1, u64 ifindex, u64 flags, u64 r4, u64 r5)
 		return dev_forward_skb(dev, skb2);
 
 	skb2->dev = dev;
+	skb_sender_cpu_clear(skb2);
 	return dev_queue_xmit(skb2);
 }