wifi: cfg80211: remove support for static WEP

This reverts commit b8676221 ("cfg80211: Add support for
static WEP in the driver") since no driver ever ended up using
it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/cfg80211.h

@@ -1075,7 +1075,6 @@ struct survey_info {
 	s8 noise;
 };
 
-#define CFG80211_MAX_WEP_KEYS	4
 #define CFG80211_MAX_NUM_AKM_SUITES	10
 
 /**
@@ -1099,9 +1098,6 @@ struct survey_info {
  *	port frames over NL80211 instead of the network interface.
  * @control_port_no_preauth: disables pre-auth rx over the nl80211 control
  *	port for mac80211
- * @wep_keys: static WEP keys, if not NULL points to an array of
- *	CFG80211_MAX_WEP_KEYS WEP keys
- * @wep_tx_key: key index (0..3) of the default TX static WEP key
  * @psk: PSK (for devices supporting 4-way-handshake offload)
  * @sae_pwd: password for SAE authentication (for devices supporting SAE
  *	offload)
@@ -1134,8 +1130,6 @@ struct cfg80211_crypto_settings {
 	bool control_port_no_encrypt;
 	bool control_port_over_nl80211;
 	bool control_port_no_preauth;
-	struct key_params *wep_keys;
-	int wep_tx_key;
 	const u8 *psk;
 	const u8 *sae_pwd;
 	u8 sae_pwd_len;
@@ -4683,8 +4677,6 @@ struct cfg80211_ops {
  * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
  * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in
  *	beaconing mode (AP, IBSS, Mesh, ...).
- * @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
- *	before connection.
  * @WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK: The device supports bigger kek and kck keys
  * @WIPHY_FLAG_SUPPORTS_MLO: This is a temporary flag gating the MLO APIs,
  *	in order to not have them reachable in normal drivers, until we have
@@ -4715,7 +4707,6 @@ enum wiphy_flags {
 	WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL	= BIT(21),
 	WIPHY_FLAG_SUPPORTS_5_10_MHZ		= BIT(22),
 	WIPHY_FLAG_HAS_CHANNEL_SWITCH		= BIT(23),
-	WIPHY_FLAG_HAS_STATIC_WEP		= BIT(24),
 };
 
 /**

net/wireless/core.h

@@ -278,8 +278,8 @@ struct cfg80211_event {
 };
 
 struct cfg80211_cached_keys {
-	struct key_params params[CFG80211_MAX_WEP_KEYS];
-	u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
+	struct key_params params[4];
+	u8 data[4][WLAN_KEY_LEN_WEP104];
 	int def;
 };
 

net/wireless/ibss.c

@@ -45,7 +45,6 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
 	cfg80211_hold_bss(bss_from_pub(bss));
 	wdev->u.ibss.current_bss = bss_from_pub(bss);
 
-	if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
 	cfg80211_upload_connect_keys(wdev);
 
 	nl80211_send_ibss_bssid(wiphy_to_rdev(wdev->wiphy), dev, bssid,
@@ -294,7 +293,7 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 		ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
 		if (!ck)
 			return -ENOMEM;
-		for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
+		for (i = 0; i < 4; i++)
 			ck->params[i].key = ck->data[i];
 	}
 	err = __cfg80211_join_ibss(rdev, wdev->netdev,

net/wireless/sme.c

@@ -855,7 +855,6 @@ void __cfg80211_connect_result(struct net_device *dev,
 			       ETH_ALEN);
 	}
 
-	if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
 	cfg80211_upload_connect_keys(wdev);
 
 	rcu_read_lock();
@@ -1462,9 +1461,6 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 				connect->crypto.ciphers_pairwise[0] = cipher;
 			}
 		}
-
-		connect->crypto.wep_keys = connkeys->params;
-		connect->crypto.wep_tx_key = connkeys->def;
 	} else {
 		if (WARN_ON(connkeys))
 			return -EINVAL;

net/wireless/util.c

@@ -934,7 +934,7 @@ void cfg80211_upload_connect_keys(struct wireless_dev *wdev)
 	if (!wdev->connect_keys)
 		return;
 
-	for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++) {
+	for (i = 0; i < 4; i++) {
 		if (!wdev->connect_keys->params[i].cipher)
 			continue;
 		if (rdev_add_key(rdev, dev, -1, i, false, NULL,

net/wireless/wext-compat.c

@@ -439,7 +439,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 					  GFP_KERNEL);
 		if (!wdev->wext.keys)
 			return -ENOMEM;
-		for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
+		for (i = 0; i < 4; i++)
 			wdev->wext.keys->params[i].key =
 				wdev->wext.keys->data[i];
 	}

net/wireless/wext-sme.c

@@ -47,7 +47,7 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 		ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
 		if (!ck)
 			return -ENOMEM;
-		for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
+		for (i = 0; i < 4; i++)
 			ck->params[i].key = ck->data[i];
 	}