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[PATCH] mac80211: incorrect shift direction

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Looks like  5d2cdcd4e85c5187db30a6b29f79fbbe59f39f78 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@xxxxxxxxx>
---
 net/mac80211/tkip.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index dddbfd6..09093da 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",
-- 
1.5.5.1.270.g89765



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