Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

[cascardo/linux.git] / drivers / net / wireless / mwifiex / scan.c

diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 9cf5d8f..c447d9b 100644 (file)
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -391,6 +391,12 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv,
                return 0;
        }
 
+       if (bss_desc->chan_sw_ie_present) {
+               dev_err(adapter->dev,
+                       "Don't connect to AP with WLAN_EID_CHANNEL_SWITCH\n");
+               return -1;
+       }
+
        if (mwifiex_is_bss_wapi(priv, bss_desc)) {
                dev_dbg(adapter->dev, "info: return success for WAPI AP\n");
                return 0;
@@ -569,6 +575,9 @@ mwifiex_scan_channel_list(struct mwifiex_private *priv,
                return -1;
        }
 
+       /* Check csa channel expiry before preparing scan list */
+       mwifiex_11h_get_csa_closed_channel(priv);
+
        chan_tlv_out->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
 
        /* Set the temp channel struct pointer to the start of the desired
@@ -598,6 +607,11 @@ mwifiex_scan_channel_list(struct mwifiex_private *priv,
                while (tlv_idx < max_chan_per_scan &&
                       tmp_chan_list->chan_number && !done_early) {
 
+                       if (tmp_chan_list->chan_number == priv->csa_chan) {
+                               tmp_chan_list++;
+                               continue;
+                       }
+
                        dev_dbg(priv->adapter->dev,
                                "info: Scan: Chan(%3d), Radio(%d),"
                                " Mode(%d, %d), Dur(%d)\n",
@@ -1169,6 +1183,19 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
                        bss_entry->erp_flags = *(current_ptr + 2);
                        break;
 
+               case WLAN_EID_PWR_CONSTRAINT:
+                       bss_entry->local_constraint = *(current_ptr + 2);
+                       bss_entry->sensed_11h = true;
+                       break;
+
+               case WLAN_EID_CHANNEL_SWITCH:
+                       bss_entry->chan_sw_ie_present = true;
+               case WLAN_EID_PWR_CAPABILITY:
+               case WLAN_EID_TPC_REPORT:
+               case WLAN_EID_QUIET:
+                       bss_entry->sensed_11h = true;
+                   break;
+
                case WLAN_EID_EXT_SUPP_RATES:
                        /*
                         * Only process extended supported rate
@@ -1575,6 +1602,9 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
                goto check_next_scan;
        }
 
+       /* Check csa channel expiry before parsing scan response */
+       mwifiex_11h_get_csa_closed_channel(priv);
+
        bytes_left = le16_to_cpu(scan_rsp->bss_descript_size);
        dev_dbg(adapter->dev, "info: SCAN_RESP: bss_descript_size %d\n",
                bytes_left);
@@ -1727,6 +1757,13 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
                        struct ieee80211_channel *chan;
                        u8 band;
 
+                       /* Skip entry if on csa closed channel */
+                       if (channel == priv->csa_chan) {
+                               dev_dbg(adapter->dev,
+                                       "Dropping entry on csa closed channel\n");
+                               continue;
+                       }
+
                        band = BAND_G;
                        if (chan_band_tlv) {
                                chan_band =
@@ -1784,22 +1821,17 @@ check_next_scan:
                if (priv->report_scan_result)
                        priv->report_scan_result = false;
 
-               if (priv->user_scan_cfg) {
-                       if (priv->scan_request) {
-                               dev_dbg(priv->adapter->dev,
-                                       "info: notifying scan done\n");
-                               cfg80211_scan_done(priv->scan_request, 0);
-                               priv->scan_request = NULL;
-                       } else {
-                               dev_dbg(priv->adapter->dev,
-                                       "info: scan already aborted\n");
-                       }
-
-                       kfree(priv->user_scan_cfg);
-                       priv->user_scan_cfg = NULL;
+               if (priv->scan_request) {
+                       dev_dbg(adapter->dev, "info: notifying scan done\n");
+                       cfg80211_scan_done(priv->scan_request, 0);
+                       priv->scan_request = NULL;
+               } else {
+                       priv->scan_aborting = false;
+                       dev_dbg(adapter->dev, "info: scan already aborted\n");
                }
        } else {
-               if (priv->user_scan_cfg && !priv->scan_request) {
+               if ((priv->scan_aborting && !priv->scan_request) ||
+                   priv->scan_block) {
                        spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
                                               flags);
                        adapter->scan_delay_cnt = MWIFIEX_MAX_SCAN_DELAY_CNT;