[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>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/s390/net/ctctty.c b/drivers/s390/net/ctctty.c
index 3080393e823d..968f2c113efe 100644
--- a/drivers/s390/net/ctctty.c
+++ b/drivers/s390/net/ctctty.c
@@ -156,7 +156,7 @@ ctc_tty_readmodem(ctc_tty_info *info)
                                         skb_queue_head(&info->rx_queue, skb);
                                 else {
                                         kfree_skb(skb);
-                                        ret = skb_queue_len(&info->rx_queue);
+                                        ret = !skb_queue_empty(&info->rx_queue);
                                 }
                         }
                 }
@@ -530,7 +530,7 @@ ctc_tty_write(struct tty_struct *tty, const u_char * buf, int count)
                 total += c;
                 count -= c;
         }
-        if (skb_queue_len(&info->tx_queue)) {
+        if (!skb_queue_empty(&info->tx_queue)) {
                 info->lsr &= ~UART_LSR_TEMT;
                 tasklet_schedule(&info->tasklet);
         }
@@ -594,7 +594,7 @@ ctc_tty_flush_chars(struct tty_struct *tty)
                 return;
         if (ctc_tty_paranoia_check(info, tty->name, "ctc_tty_flush_chars"))
                 return;
-        if (tty->stopped || tty->hw_stopped || (!skb_queue_len(&info->tx_queue)))
+        if (tty->stopped || tty->hw_stopped || skb_queue_empty(&info->tx_queue))
                 return;
         tasklet_schedule(&info->tasklet);
 }