lib80211: remove unused host_build_iv option

Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2x00/libipw.h

@@ -828,7 +828,6 @@ struct libipw_device {
 	int host_strip_iv_icv;
 
 	int host_open_frag;
-	int host_build_iv;
 	int ieee802_1x;		/* is IEEE 802.1X used */
 
 	/* WPA data */

drivers/net/wireless/ipw2x00/libipw_tx.c

@@ -260,7 +260,7 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
 	int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size,
 	    rts_required;
 	unsigned long flags;
-	int encrypt, host_encrypt, host_encrypt_msdu, host_build_iv;
+	int encrypt, host_encrypt, host_encrypt_msdu;
 	__be16 ether_type;
 	int bytes, fc, hdr_len;
 	struct sk_buff *skb_frag;
@@ -301,7 +301,6 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	host_encrypt = ieee->host_encrypt && encrypt && crypt;
 	host_encrypt_msdu = ieee->host_encrypt_msdu && encrypt && crypt;
-	host_build_iv = ieee->host_build_iv && encrypt && crypt;
 
 	if (!encrypt && ieee->ieee802_1x &&
 	    ieee->drop_unencrypted && ether_type != htons(ETH_P_PAE)) {
@@ -313,7 +312,7 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
 	skb_copy_from_linear_data(skb, dest, ETH_ALEN);
 	skb_copy_from_linear_data_offset(skb, ETH_ALEN, src, ETH_ALEN);
 
-	if (host_encrypt || host_build_iv)
+	if (host_encrypt)
 		fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA |
 		    IEEE80211_FCTL_PROTECTED;
 	else
@@ -467,7 +466,7 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
 	for (; i < nr_frags; i++) {
 		skb_frag = txb->fragments[i];
 
-		if (host_encrypt || host_build_iv)
+		if (host_encrypt)
 			skb_reserve(skb_frag,
 				    crypt->ops->extra_mpdu_prefix_len);
 
@@ -502,15 +501,6 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * to insert the IV between the header and the payload */
 		if (host_encrypt)
 			libipw_encrypt_fragment(ieee, skb_frag, hdr_len);
-		else if (host_build_iv) {
-			atomic_inc(&crypt->refcnt);
-			if (crypt->ops->build_iv)
-				crypt->ops->build_iv(skb_frag, hdr_len,
-				      ieee->sec.keys[ieee->sec.active_key],
-				      ieee->sec.key_sizes[ieee->sec.active_key],
-				      crypt->priv);
-			atomic_dec(&crypt->refcnt);
-		}
 
 		if (ieee->config &
 		    (CFG_LIBIPW_COMPUTE_FCS | CFG_LIBIPW_RESERVE_FCS))

drivers/net/wireless/ipw2x00/libipw_wx.c

@@ -320,7 +320,7 @@ int libipw_wx_set_encode(struct libipw_device *ieee,
 	};
 	int i, key, key_provided, len;
 	struct lib80211_crypt_data **crypt;
-	int host_crypto = ieee->host_encrypt || ieee->host_decrypt || ieee->host_build_iv;
+	int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
 	DECLARE_SSID_BUF(ssid);
 
 	LIBIPW_DEBUG_WX("SET_ENCODE\n");

include/net/lib80211.h

@@ -54,9 +54,6 @@ struct lib80211_crypto_ops {
 	/* deinitialize crypto context and free allocated private data */
 	void (*deinit) (void *priv);
 
-	int (*build_iv) (struct sk_buff * skb, int hdr_len,
-			 u8 *key, int keylen, void *priv);
-
 	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
 	 * value from decrypt_mpdu is passed as the keyidx value for
 	 * decrypt_msdu. skb must have enough head and tail room for the

net/wireless/lib80211_crypt_ccmp.c

@@ -467,7 +467,6 @@ static struct lib80211_crypto_ops lib80211_crypt_ccmp = {
 	.name = "CCMP",
 	.init = lib80211_ccmp_init,
 	.deinit = lib80211_ccmp_deinit,
-	.build_iv = lib80211_ccmp_hdr,
 	.encrypt_mpdu = lib80211_ccmp_encrypt,
 	.decrypt_mpdu = lib80211_ccmp_decrypt,
 	.encrypt_msdu = NULL,

net/wireless/lib80211_crypt_tkip.c

@@ -757,7 +757,6 @@ static struct lib80211_crypto_ops lib80211_crypt_tkip = {
 	.name = "TKIP",
 	.init = lib80211_tkip_init,
 	.deinit = lib80211_tkip_deinit,
-	.build_iv = lib80211_tkip_hdr,
 	.encrypt_mpdu = lib80211_tkip_encrypt,
 	.decrypt_mpdu = lib80211_tkip_decrypt,
 	.encrypt_msdu = lib80211_michael_mic_add,

net/wireless/lib80211_crypt_wep.c

@@ -269,7 +269,6 @@ static struct lib80211_crypto_ops lib80211_crypt_wep = {
 	.name = "WEP",
 	.init = lib80211_wep_init,
 	.deinit = lib80211_wep_deinit,
-	.build_iv = lib80211_wep_build_iv,
 	.encrypt_mpdu = lib80211_wep_encrypt,
 	.decrypt_mpdu = lib80211_wep_decrypt,
 	.encrypt_msdu = NULL,