From: Jouni Malinen Date: Tue, 15 Apr 2014 16:13:56 +0000 (+0300) Subject: mac80211: Allow HT capa override to add 40 MHz intolerant X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9a07bf507dfc5402e63d96596341f2a15e4142c7;p=linux-beck.git mac80211: Allow HT capa override to add 40 MHz intolerant This can be useful for testing purposes to confirm valid AP behavior on HT 20/40 co-existence functionality. Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 1495b9e39484..15702ff64a4c 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -31,6 +31,18 @@ static void __check_htcap_disable(struct ieee80211_ht_cap *ht_capa, } } +static void __check_htcap_enable(struct ieee80211_ht_cap *ht_capa, + struct ieee80211_ht_cap *ht_capa_mask, + struct ieee80211_sta_ht_cap *ht_cap, + u16 flag) +{ + __le16 le_flag = cpu_to_le16(flag); + + if ((ht_capa_mask->cap_info & le_flag) && + (ht_capa->cap_info & le_flag)) + ht_cap->cap |= flag; +} + void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, struct ieee80211_sta_ht_cap *ht_cap) { @@ -59,7 +71,7 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, smask = (u8 *)(&ht_capa_mask->mcs.rx_mask); /* NOTE: If you add more over-rides here, update register_hw - * ht_capa_mod_msk logic in main.c as well. + * ht_capa_mod_mask logic in main.c as well. * And, if this method can ever change ht_cap.ht_supported, fix * the check in ieee80211_add_ht_ie. */ @@ -90,6 +102,10 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap, IEEE80211_HT_CAP_LDPC_CODING); + /* Allow user to enable 40 MHz intolerant bit. */ + __check_htcap_enable(ht_capa, ht_capa_mask, ht_cap, + IEEE80211_HT_CAP_40MHZ_INTOLERANT); + /* Allow user to decrease AMPDU factor */ if (ht_capa_mask->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_FACTOR) { diff --git a/net/mac80211/main.c b/net/mac80211/main.c index cfc24e912947..5854699a9082 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -445,7 +445,8 @@ static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { IEEE80211_HT_CAP_MAX_AMSDU | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | - IEEE80211_HT_CAP_LDPC_CODING), + IEEE80211_HT_CAP_LDPC_CODING | + IEEE80211_HT_CAP_40MHZ_INTOLERANT), .mcs = { .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, },