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ath5k: fix keytable type buglet in ath5k_hw_reset_key

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Be sure we clear out both the mic (if applicable) and
the encryption key type.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bob Copeland 2008-10-29 23:24:26 -04:00 committed by John W. Linville
parent f07a6c495e
commit 17683c65c8
1 changed files with 11 additions and 4 deletions
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15
drivers/net/wireless/ath5k/pcu.c
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@ -960,6 +960,7 @@ int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr)
int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
{
unsigned int i, type;
u16 micentry = entry + AR5K_KEYTABLE_MIC_OFFSET;
ATH5K_TRACE(ah->ah_sc);
AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
@ -972,10 +973,10 @@ int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
/* Reset associated MIC entry if TKIP
* is enabled located at offset (entry + 64) */
if (type == AR5K_KEYTABLE_TYPE_TKIP) {
entry = entry + AR5K_KEYTABLE_MIC_OFFSET;
AR5K_ASSERT_ENTRY(entry, AR5K_KEYTABLE_SIZE);
AR5K_ASSERT_ENTRY(micentry, AR5K_KEYTABLE_SIZE);
for (i = 0; i < AR5K_KEYCACHE_SIZE / 2 ; i++)
ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_OFF(entry, i));
ath5k_hw_reg_write(ah, 0,
AR5K_KEYTABLE_OFF(micentry, i));
}
/*
@ -987,10 +988,16 @@ int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
* Note2: Windows driver (ndiswrapper) sets this to
* 0x00000714 instead of 0x00000007
*/
if (ah->ah_version > AR5K_AR5211)
if (ah->ah_version > AR5K_AR5211) {
ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL,
AR5K_KEYTABLE_TYPE(entry));
if (type == AR5K_KEYTABLE_TYPE_TKIP) {
ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL,
AR5K_KEYTABLE_TYPE(micentry));
}
}
return 0;
}