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authortamizhr@codeaurora.org <tamizhr@codeaurora.org>2018-03-27 16:46:17 +0300
committerJohannes Berg <johannes.berg@intel.com>2018-03-29 11:19:59 +0300
commit97f5f4254a61d7a104b5e609a6a0d9a10c73d29e (patch)
tree83e2dc1aa0562a897c7bd83fe63d58575c271b38 /net/mac80211
parent57566b20033f23bdc9f25d5fa4c36a7287aa08d2 (diff)
downloadlinux-97f5f4254a61d7a104b5e609a6a0d9a10c73d29e.tar.xz
mac80211: Use proper chan_width enum in sta opmode event
Bandwidth change value reported via nl80211 contains mac80211 specific enum value(ieee80211_sta_rx_bw) and which is not understand by userspace application. Map the mac80211 specific value to nl80211_chan_width enum value to avoid using wrong value in the userspace application. And used station's ht/vht capability to map IEEE80211_STA_RX_BW_20 and IEEE80211_STA_RX_BW_160 with proper nl80211 value. Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/ieee80211_i.h2
-rw-r--r--net/mac80211/rx.c3
-rw-r--r--net/mac80211/vht.c32
3 files changed, 35 insertions, 2 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9237ffb4e986..6c341d89448c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1816,6 +1816,8 @@ void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_vht_cap *vht_cap);
void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
u16 vht_mask[NL80211_VHT_NSS_MAX]);
+enum nl80211_chan_width
+ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
/* Spectrum management */
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f8c69acfda48..3a9f0c0a2de8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2922,7 +2922,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
rx->sta->sta.bandwidth = new_bw;
sband = rx->local->hw.wiphy->bands[status->band];
- sta_opmode.bw = new_bw;
+ sta_opmode.bw =
+ ieee80211_sta_rx_bw_to_chan_width(rx->sta);
sta_opmode.changed = STA_OPMODE_MAX_BW_CHANGED;
rate_control_rate_update(local, sband, rx->sta,
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 5714dee76b12..259325cbcc31 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -358,6 +358,36 @@ enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
return NL80211_CHAN_WIDTH_80;
}
+enum nl80211_chan_width
+ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta)
+{
+ enum ieee80211_sta_rx_bandwidth cur_bw = sta->sta.bandwidth;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ u32 cap_width;
+
+ switch (cur_bw) {
+ case IEEE80211_STA_RX_BW_20:
+ if (!sta->sta.ht_cap.ht_supported)
+ return NL80211_CHAN_WIDTH_20_NOHT;
+ else
+ return NL80211_CHAN_WIDTH_20;
+ case IEEE80211_STA_RX_BW_40:
+ return NL80211_CHAN_WIDTH_40;
+ case IEEE80211_STA_RX_BW_80:
+ return NL80211_CHAN_WIDTH_80;
+ case IEEE80211_STA_RX_BW_160:
+ cap_width =
+ vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+
+ if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ)
+ return NL80211_CHAN_WIDTH_160;
+
+ return NL80211_CHAN_WIDTH_80P80;
+ default:
+ return NL80211_CHAN_WIDTH_20;
+ }
+}
+
enum ieee80211_sta_rx_bandwidth
ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width)
{
@@ -484,7 +514,7 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
new_bw = ieee80211_sta_cur_vht_bw(sta);
if (new_bw != sta->sta.bandwidth) {
sta->sta.bandwidth = new_bw;
- sta_opmode.bw = new_bw;
+ sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta);
changed |= IEEE80211_RC_BW_CHANGED;
sta_opmode.changed |= STA_OPMODE_MAX_BW_CHANGED;
}