mac80211: allow vendor specific cipher suites

Allow drivers to specify their own set of cipher
suites to advertise vendor-specific ciphers. The
driver is then required to implement hardware
crypto offload for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a6ac9fd..31a8903 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -947,6 +947,8 @@
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
 	if (!tx->key)
 		return TX_CONTINUE;
 
@@ -960,10 +962,16 @@
 		return ieee80211_crypto_ccmp_encrypt(tx);
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		return ieee80211_crypto_aes_cmac_encrypt(tx);
+	default:
+		/* handle hw-only algorithm */
+		if (info->control.hw_key) {
+			ieee80211_tx_set_protected(tx);
+			return TX_CONTINUE;
+		}
+		break;
+
 	}
 
-	/* not reached */
-	WARN_ON(1);
 	return TX_DROP;
 }