path: root/net/mac80211/wep.c
diff options
authorJohannes Berg <johannes@sipsolutions.net>2008-05-15 12:55:29 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-05-21 21:48:11 -0400
commite039fa4a4195ac4ee895e6f3d1334beed63256fe (patch)
treecfd0762d73df96b73052378be7b157c4ac6e7035 /net/mac80211/wep.c
parente24549485f859be6518929bb1c9c0257d79f033d (diff)
mac80211: move TX info into skb->cb
This patch converts mac80211 and all drivers to have transmit information and status in skb->cb rather than allocating extra memory for it and copying all the data around. To make it fit, a union is used where only data that is necessary for all steps is kept outside of the union. A number of fixes were done by Ivo, as well as the rt2x00 part of this patch. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/wep.c')
1 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 3cbae42ec504..1e7f03dd8f6b 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -333,11 +333,16 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ info->control.iv_len = WEP_IV_LEN;
+ info->control.icv_len = WEP_ICV_LEN;
if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
+ info->control.hw_key = &tx->key->conf;
if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
return -1;
} else {
- tx->control->hw_key = &tx->key->conf;
if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
return -1;
@@ -349,8 +354,6 @@ static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx)
- tx->control->iv_len = WEP_IV_LEN;
- tx->control->icv_len = WEP_ICV_LEN;
if (wep_encrypt_skb(tx, tx->skb) < 0) {