From: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Date: Tue, 28 Feb 2012 17:17:04 +0000 (-0800)
Subject: ath6kl: Clear the IE in firmware if not set
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=080eec4fb4;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ath6kl: Clear the IE in firmware if not set

Remove check so that IE in firmware is cleared if not set. Without this fix, any
previously set IE will be used incorrectly in the next frame. For example,
consider the scenario where a P2P device scan is followed by a regular station
scan. The P2P IE set by the P2P scan needs to be cleared, otherwise the station
scan will contain the P2P IE.

kvalo: indentation fixes

Signed-off-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 50b76d0a4c6a..0becddd8b585 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -885,19 +885,14 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
 						  request->ssids[i].ssid);
 	}
 
-	/*
-	 * FIXME: we should clear the IE in fw if it's not set so just
-	 * remove the check altogether
-	 */
-	if (request->ie) {
-		ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
-					       WMI_FRAME_PROBE_REQ,
-					       request->ie, request->ie_len);
-		if (ret) {
-			ath6kl_err("failed to set Probe Request appie for "
-				   "scan");
-			return ret;
-		}
+	/* this also clears IE in fw if it's not set */
+	ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_PROBE_REQ,
+				       request->ie, request->ie_len);
+	if (ret) {
+		ath6kl_err("failed to set Probe Request appie for "
+			   "scan");
+		return ret;
 	}
 
 	/*
@@ -2301,28 +2296,27 @@ static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev,
 	if (vif->next_mode != AP_NETWORK)
 		return -EOPNOTSUPP;
 
-	if (info->beacon_ies) {
-		res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
-					       WMI_FRAME_BEACON,
-					       info->beacon_ies,
-					       info->beacon_ies_len);
-		if (res)
-			return res;
-	}
-	if (info->proberesp_ies) {
-		res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
-						   info->proberesp_ies_len);
-		if (res)
-			return res;
-	}
-	if (info->assocresp_ies) {
-		res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
-					       WMI_FRAME_ASSOC_RESP,
-					       info->assocresp_ies,
-					       info->assocresp_ies_len);
-		if (res)
-			return res;
-	}
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_BEACON,
+				       info->beacon_ies,
+				       info->beacon_ies_len);
+	if (res)
+		return res;
+
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
+					   info->proberesp_ies_len);
+	if (res)
+		return res;
+
+	/* this also clears IE in fw if it's not set */
+	res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
+				       WMI_FRAME_ASSOC_RESP,
+				       info->assocresp_ies,
+				       info->assocresp_ies_len);
+	if (res)
+		return res;
 
 	if (!add)
 		return 0;