K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2011-11-08T21:25:36.182195Z
K 7
svn:log
V 371
Change the descriptor logic to use bf_lastds to point to the last
descriptor, rather than using the maths involving bf_desc[bf_nseg - 1].

When doing TX aggregation, the status will be updated in the -final-
descriptor of the -final- subframe in an aggregate. Thus bf_lastds
may point to the last descriptor in a completely different ath_buf.

Sponsored by:	Hobnob, Inc.

END