diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-12-01 20:29:42 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-12-22 21:31:17 +0300 |
| commit | f38fd12fa7b7b98e158a9b31d388da34eef25c22 (patch) | |
| tree | bf5f8407e3456e691e4ef873d343c3403974937a /net/mac80211/mlme.c | |
| parent | 8b73d13a21ae889e747cac180ff27c5a0a88e6a4 (diff) | |
| download | linux-f38fd12fa7b7b98e158a9b31d388da34eef25c22.tar.xz | |
mac80211: allow disabling 40MHz on 2.4GHz
In some situations it is required that a system be
configured with no support for 40 MHz channels in
the 2.4 GHz band. Rather than imposing any such
restrictions on everybody, allow configuration a
system like that with a module parameter. It is
writable at runtime but only takes effect at the
time of the next association.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 0a762a9ba4df..a7472c979c63 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -400,6 +400,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, /* determine capability flags */ + if (ieee80211_disable_40mhz_24ghz && + sband->band == IEEE80211_BAND_2GHZ) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } + switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_HT40PLUS) { |