s390/qeth: replace open-coded skb_queue_walk()

To match the use of __skb_queue_purge(), also make the skb's enqueue in
qeth_fill_buffer() lockless.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed