From: Harvey Harrison <harvey.harrison@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: John Linville <linville@tuxdriver.com>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: [PATCH] mac80211: incorrect shift direction
Date: Sun, 27 Apr 2008 03:48:40 -0700 [thread overview]
Message-ID: <1209293320.14173.63.camel@brick> (raw)
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@gmail.com>
---
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
next reply other threads:[~2008-04-27 10:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-27 10:48 Harvey Harrison [this message]
2008-04-27 11:24 ` [PATCH] mac80211: incorrect shift direction Johannes Berg
2008-04-27 15:00 ` Tomas Winkler
2008-04-27 17:43 ` Harvey Harrison
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