tree 6f219c46e9fdae5df766deb784c3cfc00e3e4106
parent 56d1893d94bc06d0b1aa3a53f924ed02f9e207bf
author Daniel Halperin <dhalperi@cs.washington.edu> 1305079245 -0700
committer John W. Linville <linville@tuxdriver.com> 1305223848 -0400

mac80211: fix contention time computation in minstrel, minstrel_ht

When transmitting a frame, the transmitter waits a random number of
slots between 0 and cw. Thus, the contention time is (cw / 2) * t_slot
which we can represent instead as (cw * t_slot) >> 1. Also fix a few
other accounting bugs around contention time, and add comments.

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>