commit 14acdde6e527950f66c084dbf19bad6fbfcaeedc upstream. The newer single chip hardware family of chipsets have not been experiencing issues with power saving set by default with recent fixes merged (even into stable). The remaining issues are only reported with AR5416 and since enabling PS by default can increase power savings considerably best to take advantage of that feature as this has been tested properly. For more details on this issue see the bug report: http://bugzilla.kernel.org/show_bug.cgi?id=14267 We leave AR5416 with PS disabled by default, that seems to require some more work. Cc: stable@xxxxxxxxxx Cc: Peter Stuge <peter@xxxxxxxx> Cc: Justin P. Mattock <justinmattock@xxxxxxxxx> Cc: Kristoffer Ericson <kristoffer.ericson@xxxxxxxxx> Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx> Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx> --- Greg, this is the long promised backport of the patch titled "ath9k: re-enable ps by default for new single chip families" backported down to 2.6.32.y. This just goes test compiled. Manual backport was required from the upstream Linus patch since the flag WIPHY_FLAG_PS_ON_BY_DEFAULT was not used back on 2.6.32 so instead we use the equivalent hw->wiphy->ps_default bool. Apologies for the delay, was just stuck with other stuff. I'll remove this from the stable pending list for 802.11 [1] once this gets sucked in. [1] http://wireless.kernel.org/en/developers/stable-pending drivers/net/wireless/ath/ath9k/main.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 15eb245..dba27b7 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1538,6 +1538,8 @@ bad_no_ah: void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) { + struct ath_hw *ah = sc->sc_ah; + hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | IEEE80211_HW_SIGNAL_DBM | @@ -1556,7 +1558,10 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MESH_POINT); - hw->wiphy->ps_default = false; + if (AR_SREV_5416(ah)) + hw->wiphy->ps_default = false; + else + hw->wiphy->ps_default = true; hw->queues = 4; hw->max_rates = 4; -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
