[NET]: Transform skb_queue_len() binary tests into skb_queue_empty()
This is part of the grand scheme to eliminate the qlen member of skb_queue_head, and subsequently remove the 'list' member of sk_buff. Most users of skb_queue_len() want to know if the queue is empty or not, and that's trivially done with skb_queue_empty() which doesn't use the skb_queue_head->qlen member and instead uses the queue list emptyness as the test. Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -120,7 +120,7 @@ static unsigned int hci_vhci_chr_poll(struct file *file, poll_table * wait)
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poll_wait(file, &hci_vhci->read_wait, wait);
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if (skb_queue_len(&hci_vhci->readq))
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if (!skb_queue_empty(&hci_vhci->readq))
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return POLLIN | POLLRDNORM;
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return POLLOUT | POLLWRNORM;
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