wifi: wilc1000: remove WEP security support

Deprecated WEP security for WILC driver as well as in firmware from
15.6 FW release onwards. After WEP security removal, freeup some codespace
which helped to add new features like WPA3 etc.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220524120606.9675-2-ajay.kathat@microchip.com

1 files changed, 2 insertions, 74 deletions

diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 8d8378bafd9b..256026d57a70 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -313,32 +313,9 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 
 	vif->connecting = true;
 
-	memset(priv->wep_key, 0, sizeof(priv->wep_key));
-	memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
-
 	cipher_group = sme->crypto.cipher_group;
 	if (cipher_group != 0) {
-		if (cipher_group == WLAN_CIPHER_SUITE_WEP40) {
-			security = WILC_FW_SEC_WEP;
-
-			priv->wep_key_len[sme->key_idx] = sme->key_len;
-			memcpy(priv->wep_key[sme->key_idx], sme->key,
-			       sme->key_len);
-
-			wilc_set_wep_default_keyid(vif, sme->key_idx);
-			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
-						 sme->key_idx);
-		} else if (cipher_group == WLAN_CIPHER_SUITE_WEP104) {
-			security = WILC_FW_SEC_WEP_EXTENDED;
-
-			priv->wep_key_len[sme->key_idx] = sme->key_len;
-			memcpy(priv->wep_key[sme->key_idx], sme->key,
-			       sme->key_len);
-
-			wilc_set_wep_default_keyid(vif, sme->key_idx);
-			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
-						 sme->key_idx);
-		} else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) {
+		if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) {
 			if (cipher_group == WLAN_CIPHER_SUITE_TKIP)
 				security = WILC_FW_SEC_WPA2_TKIP;
 			else
@@ -373,10 +350,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 		auth_type = WILC_FW_AUTH_OPEN_SYSTEM;
 		break;
 
-	case NL80211_AUTHTYPE_SHARED_KEY:
-		auth_type = WILC_FW_AUTH_SHARED_KEY;
-		break;
-
 	default:
 		break;
 	}
@@ -487,14 +460,6 @@ static int disconnect(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
-static inline void wilc_wfi_cfg_copy_wep_info(struct wilc_priv *priv,
-					      u8 key_index,
-					      struct key_params *params)
-{
-	priv->wep_key_len[key_index] = params->key_len;
-	memcpy(priv->wep_key[key_index], params->key, params->key_len);
-}
-
 static int wilc_wfi_cfg_allocate_wpa_entry(struct wilc_priv *priv, u8 idx)
 {
 	if (!priv->wilc_gtk[idx]) {
@@ -552,33 +517,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	struct wilc_priv *priv = &vif->priv;
 
 	switch (params->cipher) {
-	case WLAN_CIPHER_SUITE_WEP40:
-	case WLAN_CIPHER_SUITE_WEP104:
-		if (priv->wdev.iftype == NL80211_IFTYPE_AP) {
-			wilc_wfi_cfg_copy_wep_info(priv, key_index, params);
-
-			if (params->cipher == WLAN_CIPHER_SUITE_WEP40)
-				mode = WILC_FW_SEC_WEP;
-			else
-				mode = WILC_FW_SEC_WEP_EXTENDED;
-
-			ret = wilc_add_wep_key_bss_ap(vif, params->key,
-						      params->key_len,
-						      key_index, mode,
-						      WILC_FW_AUTH_OPEN_SYSTEM);
-			break;
-		}
-		if (memcmp(params->key, priv->wep_key[key_index],
-			   params->key_len)) {
-			wilc_wfi_cfg_copy_wep_info(priv, key_index, params);
-
-			ret = wilc_add_wep_key_bss_sta(vif, params->key,
-						       params->key_len,
-						       key_index);
-		}
-
-		break;
-
 	case WLAN_CIPHER_SUITE_TKIP:
 	case WLAN_CIPHER_SUITE_CCMP:
 		if (priv->wdev.iftype == NL80211_IFTYPE_AP ||
@@ -676,13 +614,6 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 		priv->wilc_ptk[key_index] = NULL;
 	}
 
-	if (key_index <= 3 && priv->wep_key_len[key_index]) {
-		memset(priv->wep_key[key_index], 0,
-		       priv->wep_key_len[key_index]);
-		priv->wep_key_len[key_index] = 0;
-		wilc_remove_wep_key(vif, key_index);
-	}
-
 	return 0;
 }
 
@@ -713,13 +644,10 @@ static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	return 0;
 }
 
+/* wiphy_new_nm() will WARNON if not present */
 static int set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 			   u8 key_index, bool unicast, bool multicast)
 {
-	struct wilc_vif *vif = netdev_priv(netdev);
-
-	wilc_set_wep_default_keyid(vif, key_index);
-
 	return 0;
 }