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authorJohannes Berg <johannes@sipsolutions.net>2007-09-14 19:10:25 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-11 03:49:30 +0400
commitc39e3a0d0380b12f45bf85a619d3df45e437ee45 (patch)
tree93e0679f0fa426c4282c15135b3bbec3f2cc1f0b /net
parent6a7664d451e7014b1a6828e50ccb3308d0b84816 (diff)
downloadlinux-c39e3a0d0380b12f45bf85a619d3df45e437ee45.tar.xz
[MAC80211]: remove TKIP mixing for hw accel again
The TKIP mixing code was added for the benefit of Intel's ipw3945 chipset but that code ended up not using it. We have previously identified many problems with this code and it crystallized that library functions for mixing are likely to handle this in much more generality and might allow b43 to take advantage of hardware acceleration for TKIP. Due to these reasons, remove the TKIP mixing for hardware accelerated crypto operations. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Buesch <mb@bu3sch.de> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/wpa.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index a23531cef5b0..6e12638054aa 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -214,7 +214,6 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
key->u.tkip.iv32++;
if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- u32 flags = tx->local->hw.flags;
hdr = (struct ieee80211_hdr *)skb->data;
/* hwaccel - with preallocated room for IV */
@@ -224,22 +223,6 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
0x7f),
(u8) key->u.tkip.iv16);
- if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
- ieee80211_tkip_gen_rc4key(key, hdr->addr2,
- tx->u.tx.control->tkip_key);
- else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
- if (key->u.tkip.iv16 == 0 ||
- !key->u.tkip.tx_initialized) {
- ieee80211_tkip_gen_phase1key(key, hdr->addr2,
- (u16 *)tx->u.tx.control->tkip_key);
- key->u.tkip.tx_initialized = 1;
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- } else
- tx->u.tx.control->flags &=
- ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- }
-
tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
return 0;
}