stefan schippers wrote:
> # ping 192.168.0.1
> PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
> From 192.168.0.78 icmp_seq=1 Destination Host Unreachable
> From 192.168.0.78 icmp_seq=2 Destination Host Unreachable
> From 192.168.0.78 icmp_seq=3 Destination Host Unreachable
> From 192.168.0.78 icmp_seq=4 Destination Host Unreachable
> From 192.168.0.78 icmp_seq=5 Destination Host Unreachable
> From 192.168.0.78 icmp_seq=6 Destination Host Unreachable
> ^C
Thanks. Can you try this patch?
It works like this:
0. Prerequisites:
apt-get install git build-essential
1. Get a copy of the linux-stable tree:
git clone -o stable \
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git \
linux
cd linux
Or, if you already have a clone of the kernel:
cd linux
git remote add -f stable \
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git \
2. Make sure you can still reproduce the bug:
git checkout stable/linux-3.2.y
cp /boot/config-$(uname -r) .config; # current configuration
make localmodconfig; # optional: minimize configuration
make deb-pkg; # optionally with -j<num> for parallel build
dpkg -i ../<name of package>
reboot
3. Apply the patch and see if it fixes it:
git apply --index <thepatch>
make deb-pkg; # maybe with -j4
dpkg -i ../<name of package>
reboot
commit f88373fa47f3
Author: Felix Fietkau <[email protected]>
Date: Sun Feb 5 21:15:17 2012 +0100
ath9k: fix a WEP crypto related regression
commit b4a82a0 "ath9k_hw: fix interpretation of the rx KeyMiss flag"
fixed the interpretation of the KeyMiss flag for keycache based lookups,
however WEP encryption uses a static index, so KeyMiss is always asserted
for it, even though frames are decrypted properly.
Fix this by clearing the ATH9K_RXERR_KEYMISS flag if no keycache based
lookup was performed.
Signed-off-by: Felix Fietkau <[email protected]>
Cc: [email protected]
Reported-by: Laurent Bonnans <[email protected]>
Reported-by: Jurica Vukadin <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
diff --git a/drivers/net/wireless/ath/ath9k/recv.c
b/drivers/net/wireless/ath/ath9k/recv.c
index 0e666fbe0842..7e1a91af1497 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -822,6 +822,14 @@ static bool ath9k_rx_accept(struct ath_common *common,
(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_CRC | ATH9K_RXERR_MIC |
ATH9K_RXERR_KEYMISS));
+ /*
+ * Key miss events are only relevant for pairwise keys where the
+ * descriptor does contain a valid key index. This has been observed
+ * mostly with CCMP encryption.
+ */
+ if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID)
+ rx_stats->rs_status &= ~ATH9K_RXERR_KEYMISS;
+
if (!rx_stats->rs_datalen)
return false;
/*
--
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