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[6/7] mac80211: ask for ECSA IE to be considered for beacon parse CRC

Message ID 1426143210-25635-6-git-send-email-emmanuel.grumbach@intel.com
State Accepted
Delegated to: Johannes Berg
Headers show

Commit Message

Emmanuel Grumbach March 12, 2015, 6:53 a.m. UTC
From: Johannes Berg <johannes.berg@intel.com>

When a beacon from the AP contains only the ECSA IE, and not a CSA IE
as well, this ECSA IE is not considered for calculating the CRC and
the beacon might be dropped as not being interesting. This is clearly
wrong, it should be handled and the channel switch should be executed.

Fix this by including the ECSA IE ID in the bitmap of interesting IEs.

Reported-by: Gil Tribush <gil.tribush@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/mlme.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6205206..ff03961 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3207,7 +3207,8 @@  static const u64 care_about_ies =
 	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
 	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
 	(1ULL << WLAN_EID_HT_CAPABILITY) |
-	(1ULL << WLAN_EID_HT_OPERATION);
+	(1ULL << WLAN_EID_HT_OPERATION) |
+	(1ULL << WLAN_EID_EXT_CHANSWITCH_ANN);
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt, size_t len,