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ath9k: Fix regression in LNA diversity 

The commit "ath9k: Optimize LNA check" tried
to use the "rs_firstaggr" flag to optimize the LNA
combining algorithm when processing subframes in
an A-MPDU. This doesn't appear to work well in practice,
so revert it and use the old method of relying on
"rs_moreaggr".

Cc: stable@vger.kernel.org # 3.11
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-09-16 10:24:51 +05:30 committed by John W. Linville
parent 440c1c874a
commit d29a5fd888
1 changed files with 0 additions and 7 deletions
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7
drivers/net/wireless/ath/ath9k/recv.c
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@ -1269,13 +1269,6 @@ static void ath9k_antenna_check(struct ath_softc *sc,
if (!(ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB))
return;
/*
* All MPDUs in an aggregate will use the same LNA
* as the first MPDU.
*/
if (rs->rs_isaggr && !rs->rs_firstaggr)
return;
/*
* Change the default rx antenna if rx diversity
* chooses the other antenna 3 times in a row.