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mac80211: enable TDLS peer buffer STA feature

Browse source 
Allow drivers to set the buffer station extended capability
for TDLS links, with a new hardware flag indicating this.

Signed-off-by: Yingying Tang <[email protected]>
[change commit log/documentation wording]
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Yingying Tang 2017-10-24 16:51:10 +08:00 • committed by Johannes Berg
commit e2fb1b8392
3 changed files with 9 additions and 1 deletions
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1
net/mac80211/debugfs.c
View file

@ -211,6 +211,7 @@ static const char *hw_flag_names[] = {
FLAG(TX_FRAG_LIST),
FLAG(REPORTS_LOW_ACK),
FLAG(SUPPORTS_TX_FRAG),
FLAG(SUPPORTS_TDLS_BUFFER_STA),
#undef FLAG
};

5
net/mac80211/tdls.c
View file

@ -47,6 +47,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
!ifmgd->tdls_wider_bw_prohibited;
bool buffer_sta = ieee80211_hw_check(&local->hw,
SUPPORTS_TDLS_BUFFER_STA);
struct ieee80211_supported_band *sband = ieee80211_get_sband(sdata);
bool vht = sband && sband->vht_cap.vht_supported;
u8 *pos = skb_put(skb, 10);
@ -56,7 +58,8 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
*pos++ = 0x0;
*pos++ = 0x0;
*pos++ = 0x0;
*pos++ = chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0;
*pos++ = (chan_switch ? WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH : 0) |
(buffer_sta ? WLAN_EXT_CAPA4_TDLS_BUFFER_STA : 0);
*pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
*pos++ = 0;
*pos++ = 0;