On 01/11/2018 01:09 AM, pkshih@xxxxxxxxxxx wrote:
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(+)
Acked-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
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;
