mac80211: minor code cleanups
Nothing very interesting, some checkpatch inspired stuff,
some other things.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index f0e2d3e..7bbb98e 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -49,17 +49,19 @@
crypto_free_blkcipher(local->wep_rx_tfm);
}
-static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
+static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen)
{
- /* Fluhrer, Mantin, and Shamir have reported weaknesses in the
+ /*
+ * Fluhrer, Mantin, and Shamir have reported weaknesses in the
* key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
- * 0xff, N) can be used to speedup attacks, so avoid using them. */
+ * 0xff, N) can be used to speedup attacks, so avoid using them.
+ */
if ((iv & 0xff00) == 0xff00) {
u8 B = (iv >> 16) & 0xff;
if (B >= 3 && B < 3 + keylen)
- return 1;
+ return true;
}
- return 0;
+ return false;
}
@@ -268,7 +270,7 @@
}
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
+bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
unsigned int hdrlen;
@@ -276,16 +278,13 @@
u32 iv;
if (!ieee80211_has_protected(hdr->frame_control))
- return NULL;
+ return false;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
ivpos = skb->data + hdrlen;
iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
- if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
- return ivpos;
-
- return NULL;
+ return ieee80211_wep_weak_iv(iv, key->conf.keylen);
}
ieee80211_rx_result
@@ -329,6 +328,8 @@
ieee80211_tx_result
ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx)
{
+ int i;
+
ieee80211_tx_set_protected(tx);
if (wep_encrypt_skb(tx, tx->skb) < 0) {
@@ -337,9 +338,8 @@
}
if (tx->extra_frag) {
- int i;
for (i = 0; i < tx->num_extra_frag; i++) {
- if (wep_encrypt_skb(tx, tx->extra_frag[i]) < 0) {
+ if (wep_encrypt_skb(tx, tx->extra_frag[i])) {
I802_DEBUG_INC(tx->local->
tx_handlers_drop_wep);
return TX_DROP;