mac80211: print info when disabling HT

Make mac80211 print a message when it disables
HT due to the connection using WEP/TKIP or due
to the AP not supporting WMM/QoS.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 3 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index da6bd81fec6d..e7c4ec4ce166 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3317,11 +3317,15 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
          * We can set this to true for non-11n hardware, that'll be checked
          * separately along with the peer capabilities.
          */
-        for (i = 0; i < req->crypto.n_ciphers_pairwise; i++)
+        for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) {
                 if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 ||
                     req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
-                    req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104)
+                    req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) {
                         ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+                        netdev_info(sdata->dev,
+                                    "disabling HT due to WEP/TKIP use\n");
+                }
+        }
 
         if (req->flags & ASSOC_REQ_DISABLE_HT)
                 ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
@@ -3329,8 +3333,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
         /* Also disable HT if we don't support it or the AP doesn't use WMM */
         sband = local->hw.wiphy->bands[req->bss->channel->band];
         if (!sband->ht_cap.ht_supported ||
-            local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used)
+            local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
                 ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+                netdev_info(sdata->dev,
+                            "disabling HT as WMM/QoS is not supported\n");
+        }
 
         memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa));
         memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask,