From: Tsang-Shian Lin <thlin@xxxxxxxxxxx>
When AP change bandwidth setting from 20M to 40M, STA may use old 20M AP
information to association with AP. Driver unlink bss in the
.bss_info_changed of ieee80211_ops to make sure that later scan can get
correct AP bandwidth capability.
Signed-off-by: Tsang-Shian Lin <thlin@xxxxxxxxxxx>
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtlwifi/core.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index ec639fa8095e..6c698123ac07 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1171,6 +1171,8 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
"BSS_CHANGED_ASSOC\n");
} else {
+ struct cfg80211_bss *bss = NULL;
+
mstatus = RT_MEDIA_DISCONNECT;
if (mac->link_state == MAC80211_LINKED)
@@ -1178,6 +1180,22 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
mac->link_state = MAC80211_NOLINK;
+
+ bss = cfg80211_get_bss(hw->wiphy, NULL,
+ (u8 *)mac->bssid, NULL, 0,
+ IEEE80211_BSS_TYPE_ESS,
+ IEEE80211_PRIVACY_OFF);
+
+ RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
+ "bssid = %pMF\n", mac->bssid);
+
+ if (bss) {
+ cfg80211_unlink_bss(hw->wiphy, bss);
+ cfg80211_put_bss(hw->wiphy, bss);
+ RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
+ "cfg80211_unlink !!\n");
+ }
+
eth_zero_addr(mac->bssid);
mac->vendor = PEER_UNKNOWN;
mac->mode = 0;
--
2.15.1
