mac80211: add control port protocol TX control flag

A lot of drivers check the frame protocol for ETH_P_PAE,
for various reasons (like making those more reliable).
Add a new flags bitmap to the TX control info and a new
flag indicating the control port protocol is in use to
let all drivers also apply such logic to other control
port protocols, should they be configured.

Also use the new flag in the iwlwifi drivers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

3 files changed, 9 insertions, 9 deletions

diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 5ee983f..f364583 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -87,7 +87,7 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 		 priv->lib->bt_params->advanced_bt_coexist &&
 		 (ieee80211_is_auth(fc) || ieee80211_is_assoc_req(fc) ||
 		 ieee80211_is_reassoc_req(fc) ||
-		 skb->protocol == cpu_to_be16(ETH_P_PAE)))
+		 info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
 		tx_flags |= TX_CMD_FLG_IGNORE_BT;
 
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index 4491c1c..684c416 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -33,10 +33,11 @@
 static inline bool iwl_trace_data(struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (void *)skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
-	if (ieee80211_is_data(hdr->frame_control))
-		return skb->protocol != cpu_to_be16(ETH_P_PAE);
-	return false;
+	if (!ieee80211_is_data(hdr->frame_control))
+		return false;
+	return !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO);
 }
 
 static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index f0e96a9..d62a6d3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -91,11 +91,10 @@ static void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
 		tx_flags |= TX_CMD_FLG_ACK | TX_CMD_FLG_BAR;
 
 	/* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
-	if (info->band == IEEE80211_BAND_2GHZ        &&
-	    (skb->protocol == cpu_to_be16(ETH_P_PAE)  ||
-	     is_multicast_ether_addr(hdr->addr1)      ||
-	     ieee80211_is_back_req(fc)                ||
-	     ieee80211_is_mgmt(fc)))
+	if (info->band == IEEE80211_BAND_2GHZ &&
+	    (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
+	     is_multicast_ether_addr(hdr->addr1) ||
+	     ieee80211_is_back_req(fc) || ieee80211_is_mgmt(fc)))
 		tx_flags |= TX_CMD_FLG_BT_DIS;
 
 	if (ieee80211_has_morefrags(fc))