tree 26fe5f5277ac6d7061ea723f92d4038b0c28b0b8
parent f444de05d20e27cdd960c13fcbcfca3099f03143
author Johannes Berg <johannes@sipsolutions.net> 1273066107 +0200
committer John W. Linville <linville@tuxdriver.com> 1273258551 -0400

mac80211: improve HT channel handling

Currently, when one interface switches HT mode,
all others will follow along. This is clearly
undesirable, since the new one might switch to
no-HT while another one is operating in HT.

Address this issue by keeping track of the HT
mode per interface, and allowing only changes
that are compatible, i.e. switching into HT40+
is not possible when another interface is in
HT40-, in that case the second one needs to
fall back to HT20.

Also, to allow drivers to know what's going on,
store the per-interface HT mode (channel type)
in the virtual interface's bss_conf.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>