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ath9k: fix spurious MIC failure reports

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According to the hardware documentation, the MIC failure bit is only
valid if the frame was decrypted using a valid TKIP key and is not a
fragment.
In some setups I've seen hardware-reported MIC failures on an AP that
was configured for CCMP only, so it's clear that additional checks are
necessary.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau
2010-08-28 18:21:21 +02:00
committed by John W. Linville
parent 3653910714
commit 56363ddeee
4 changed files with 25 additions and 9 deletions
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1
drivers/net/wireless/ath/ath.h
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@ -119,6 +119,7 @@ struct ath_common {
u32 keymax;
DECLARE_BITMAP(keymap, ATH_KEYMAX);
DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
u8 splitmic;
struct ath_regulatory regulatory;