From: Amitkumar Karwar Date: Thu, 3 Jan 2013 00:56:00 +0000 (-0800) Subject: mwifiex: use correct htcapinfo for HT20 ibss network X-Git-Tag: accepted/tizen/common/20141203.182822~2855^2~242^2^2~69 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d35f1035b53e92167a8231e15121dd10f4aa8edd;p=platform%2Fkernel%2Flinux-arm64.git mwifiex: use correct htcapinfo for HT20 ibss network It is observed that same htcapinfo ie is included in beacon for HT20, HT40+ and HT40- ibss networks. This patch makes sure that we will not advertise 40Mhz flags while creating/joining ibss network in HT20 mode. Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c index 245a371..9cd6216 100644 --- a/drivers/net/wireless/mwifiex/11n.c +++ b/drivers/net/wireless/mwifiex/11n.c @@ -53,7 +53,9 @@ mwifiex_fill_cap_info(struct mwifiex_private *priv, u8 radio_type, sizeof(sband->ht_cap.mcs)); if (priv->bss_mode == NL80211_IFTYPE_STATION || - sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) + (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && + (priv->adapter->sec_chan_offset != + IEEE80211_HT_PARAM_CHA_SEC_NONE))) /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask); diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c index 88664ae..3c7cabe 100644 --- a/drivers/net/wireless/mwifiex/join.c +++ b/drivers/net/wireless/mwifiex/join.c @@ -969,6 +969,16 @@ mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv, priv->adapter->config_bands); mwifiex_fill_cap_info(priv, radio_type, ht_cap); + if (adapter->sec_chan_offset == + IEEE80211_HT_PARAM_CHA_SEC_NONE) { + u16 tmp_ht_cap; + + tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info); + tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40; + ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap); + } + pos += sizeof(struct mwifiex_ie_types_htcap); cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);