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authorHarvey Harrison <harvey.harrison@gmail.com>2008-04-27 03:48:40 -0700
committerJohn W. Linville <linville@tuxdriver.com>2008-04-30 20:34:26 -0400
commit17f830459d6116ae13dbcfc9d09a406e6717b1a6 (patch)
tree8723c2773a96b4e15fba6b356de28f8996651d0c
parent636c5d488bc0b349e01cf5bfbf85588134af70a0 (diff)
mac80211: incorrect shift direction
Looks like 5d2cdcd4e85c5187db30a6b29f79fbbe59f39f78 ("mac80211: get a TKIP phase key from skb") got the shifts wrong. Noticed by sparse: net/mac80211/tkip.c:234:25: warning: right shift by bigger than source value net/mac80211/tkip.c:235:25: warning: right shift by bigger than source value net/mac80211/tkip.c:236:25: warning: right shift by bigger than source value Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/mac80211/tkip.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index dddbfd60f35..09093da24af 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -230,10 +230,8 @@ void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
iv16 = data[hdr_len] << 8;
iv16 += data[hdr_len + 2];
- iv32 = data[hdr_len + 4] +
- (data[hdr_len + 5] >> 8) +
- (data[hdr_len + 6] >> 16) +
- (data[hdr_len + 7] >> 24);
+ iv32 = data[hdr_len + 4] | (data[hdr_len + 5] << 8) |
+ (data[hdr_len + 6] << 16) | (data[hdr_len + 7] << 24);
#ifdef CONFIG_TKIP_DEBUG
printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",