mac80211: remove the dependency on crypto_blkcipher

The only thing that using crypto_blkcipher with ecb does over just using
arc4 directly is wrapping the encrypt/decrypt function into a for loop,
looping over each individual character.
To be able to do this, it pulls in around 40 kb worth of unnecessary
kernel modules (at least on a MIPS embedded device).
Using arc4 directly not only eliminates those dependencies, it also makes
the code smaller.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h
index 58654ee33518..01e54840a628 100644
--- a/net/mac80211/wep.h
+++ b/net/mac80211/wep.h
@@ -18,12 +18,12 @@
 
 int ieee80211_wep_init(struct ieee80211_local *local);
 void ieee80211_wep_free(struct ieee80211_local *local);
-int ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
                                 size_t klen, u8 *data, size_t data_len);
 int ieee80211_wep_encrypt(struct ieee80211_local *local,
                           struct sk_buff *skb,
                           const u8 *key, int keylen, int keyidx);
-int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
                                size_t klen, u8 *data, size_t data_len);
 bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);