diff options
| author | Amitkumar Karwar <akarwar@marvell.com> | 2016-04-11 07:52:41 -0700 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-04-14 16:01:47 +0300 |
| commit | bcc920e8f08336cbbdcdba7c4449c27137e6b4b9 (patch) | |
| tree | 5f63bb840dba80ebc4fe74a48fb5c9edb7dfd852 /drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | |
| parent | c3ec0ff6425b86655aa34b5c6cb0f7b6d559c6b2 (diff) | |
mwifiex: fix incorrect ht capability problem
IEEE80211_CHAN_NO_HT40PLUS and IEEE80211_CHAN_NO_HT40PLUS channel
flags tell if HT40 operation is allowed on a channel or not.
This patch ensures ht_capability information is modified
accordingly so that we don't end up creating a HT40 connection
when it's not allowed for current regulatory domain.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/marvell/mwifiex/sta_ioctl.c')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c index d8de432d46a2..8e0862657122 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c @@ -146,6 +146,7 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, size_t beacon_ie_len; struct mwifiex_bss_priv *bss_priv = (void *)bss->priv; const struct cfg80211_bss_ies *ies; + int ret; rcu_read_lock(); ies = rcu_dereference(bss->ies); @@ -189,7 +190,48 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT) bss_desc->sensed_11h = true; - return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc); + ret = mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc); + if (ret) + return ret; + + /* Update HT40 capability based on current channel information */ + if (bss_desc->bcn_ht_oper && bss_desc->bcn_ht_cap) { + u8 ht_param = bss_desc->bcn_ht_oper->ht_param; + u8 radio = mwifiex_band_to_radio_type(bss_desc->bss_band); + struct ieee80211_supported_band *sband = + priv->wdev.wiphy->bands[radio]; + int freq = ieee80211_channel_to_frequency(bss_desc->channel, + radio); + struct ieee80211_channel *chan = + ieee80211_get_channel(priv->adapter->wiphy, freq); + + switch (ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + if (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) { + sband->ht_cap.cap &= + ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; + } else { + sband->ht_cap.cap |= + IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SGI_40; + } + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + if (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) { + sband->ht_cap.cap &= + ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; + } else { + sband->ht_cap.cap |= + IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SGI_40; + } + break; + } + } + + return 0; } void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv) |