2012-09-25 16:03:06

by Mohammed Shafi Shajakhan

[permalink] [raw]
Subject: [PATCH] ath9k: Fix rx filtering issue for older chips

From: Thomas Wagner <[email protected]>

We need to have the promiscuous mode enabled for older
chipsets so that the olderchips hardware does not
filters out some valid/necessary frames that need
to be sent to mac80211. Fix this by enabling promiscus
mode for all the chipsets whose macversion <= AR9160
chipsets. This should fix
https://bugzilla.kernel.org/show_bug.cgi?id=45591

shafi: made the fix generic by having the frame filtering
disabled for chipsets older than AR9280.

Cc: Javier Cardona <[email protected]>
Signed-off-by: Thomas Wagner <[email protected]>
Signed-off-by: Mohammed Shafi Shajakhan <[email protected]>
---
drivers/net/wireless/ath/ath9k/recv.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 9b2a8cc..a04028b 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -424,8 +424,8 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
rfilt |= ATH9K_RX_FILTER_COMP_BAR;

if (sc->nvifs > 1 || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
- /* The following may also be needed for other older chips */
- if (sc->sc_ah->hw_version.macVersion == AR_SREV_VERSION_9160)
+ /* This is needed for older chips */
+ if (sc->sc_ah->hw_version.macVersion <= AR_SREV_VERSION_9160)
rfilt |= ATH9K_RX_FILTER_PROM;
rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL;
}
--
1.7.0.4