mwifiex: disable all TDLS link during disconnection

During deauthenticate/link lost event, disable all TDLS links as
TDLS would not work when infra connection is not active.
Also this will avoid an issue where ping to peer station doesn't
work after reassociation to AP where we had created TDLS link in
earlier association.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/tdls.c b/drivers/net/wireless/mwifiex/tdls.c
index 770dcd727b5c..5efd456af571 100644
--- a/drivers/net/wireless/mwifiex/tdls.c
+++ b/drivers/net/wireless/mwifiex/tdls.c
@@ -1007,3 +1007,38 @@ int mwifiex_get_tdls_link_status(struct mwifiex_private *priv, u8 *mac)
 
         return TDLS_NOT_SETUP;
 }
+
+void mwifiex_disable_all_tdls_links(struct mwifiex_private *priv)
+{
+        struct mwifiex_sta_node *sta_ptr;
+        struct mwifiex_ds_tdls_oper tdls_oper;
+        unsigned long flags;
+
+        if (list_empty(&priv->sta_list))
+                return;
+
+        list_for_each_entry(sta_ptr, &priv->sta_list, list) {
+                memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
+
+                if (sta_ptr->is_11n_enabled) {
+                        mwifiex_11n_cleanup_reorder_tbl(priv);
+                        spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
+                                          flags);
+                        mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
+                        spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
+                                               flags);
+                }
+
+                mwifiex_restore_tdls_packets(priv, sta_ptr->mac_addr,
+                                             TDLS_LINK_TEARDOWN);
+                memcpy(&tdls_oper.peer_mac, sta_ptr->mac_addr, ETH_ALEN);
+                tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
+                if (mwifiex_send_cmd_async(priv, HostCmd_CMD_TDLS_OPER,
+                                           HostCmd_ACT_GEN_SET, 0, &tdls_oper))
+                        dev_warn(priv->adapter->dev,
+                                 "Disable link failed for TDLS peer %pM",
+                                 sta_ptr->mac_addr);
+        }
+
+        mwifiex_del_all_sta_list(priv);
+}