__skb_dequeue, skb_dequeue - remove an sk_buff from the
       head of a list

SYNOPSIS

       #include <linux/skbuff.h>

       struct sk_buff *__skb_dequeue(struct sk_buff_head *list);

       struct sk_buff *skb_dequeue(struct sk_buff_head *list);

DESCRIPTION

       The skb_dequeue function removes the head  element  of  an
       sk_buff_head.   It  decrements  the list qlen pointer, and
       cleanly detaches the head from the queue.   This  function
       should  be  used instead of performing this task manually,
       as it provides a clean, standardized way  of  manipulating
       an  sk_buff_head,  and  provides  interrupt disabling (see
       NOTES below.)

RETURN VALUE

       Returns a pointer to the head element of list, or NULL  if
       list is empty.

NOTES

       It  is  important  to note the difference between not only
       __skb_dequeue and skb_dequeue, but all  the  __skb_  func­
       tions  and  their  skb_  counterparts.   Essentially,  the
       __skb_ functions are non-atomic, and should only  be  used
       with  interrupts  disabled.   As  a  convenience, the skb_
       functions are provided, which perform interrupt disable  /
       enable  wrapper  functionality  in  addition to performing
       their specific tasks.

AVAILABILITY

       Linux 1.0+

SEE ALSO

       intro(9), skb_unlink(9), skb_insert(9), skb_queue_head(9),
       skb_queue_tail(9)

       /usr/src/linux/net/netlink.c
       /usr/src/linux/net/ax25/af_ax25.c
       /usr/src/linux/net/core/datagram.c
       /usr/src/linux/net/ipv4/ipmr.c
       /usr/src/linux/net/ipv4/tcp.c

AUTHOR

       Cyrus Durgin <cider@speakeasy.org>