K 10
svn:author
V 6
rstone
K 8
svn:date
V 27
2016-08-15T19:18:10.394776Z
K 7
svn:log
V 495
MFC r304163

    Don't enqueue NULL on a drbr

    In one corner case in the bxe TX path, a NULL mbuf could be enqueued onto
    a drbr queue.  This could cause a KASSERT to fire with INVARIANTS enabled,
    or the processing of packets from the queue to be prematurely ended later
    on.

Submitted by: Matt Joras (matt.joras AT isilon.com)
Reviewed by:  davidcs
Sponsored by: EMC / Isilon Storage Division
Approved by:	re (kib)
Differential Revision:        https://reviews.freebsd.org/D7041

END