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P2P: Do not allow 40 MHz co-ex PRI/SEC switch to force MCC

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Do not allow 40 MHz co-ex PRI/SEC switch to force us to change our PRI
channel if we have an existing connection on the selected PRI channel
since doing multi-channel concurrency is likely to cause more harm than
using different PRI/SEC selection in environment with multiple BSSes on
these two channels with mixed 20 MHz or PRI channel selection.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-06-28 18:14:58 +03:00
parent 8c43ef8449
commit 55413ce072
3 changed files with 32 additions and 2 deletions
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10
src/ap/hw_features.c
View file

@ -260,8 +260,14 @@ static int ieee80211n_check_40mhz_5g(struct hostapd_iface *iface,
res = check_40mhz_5g(iface->current_mode, scan_res, pri_chan, sec_chan);
if (res == 2)
ieee80211n_switch_pri_sec(iface);
if (res == 2) {
if (iface->conf->no_pri_sec_switch) {
wpa_printf(MSG_DEBUG,
"Cannot switch PRI/SEC channels due to local constraint");
} else {
ieee80211n_switch_pri_sec(iface);
}
}
return !!res;
}