ath9k: remove support for in-bss promisc mode, the rx filter flag is too broad and in-bss promisc mode is not particularly useful. should fix most (or all) instances of "ath: Could not stop RX..." error messages

SVN-Revision: 25963

package/mac80211/patches/550-ath9k_no_vif_promisc_handling.patch

@@ -0,0 +1,13 @@
+--- a/drivers/net/wireless/ath/ath9k/recv.c
++++ b/drivers/net/wireless/ath/ath9k/recv.c
+@@ -413,9 +413,7 @@ u32 ath_calcrxfilter(struct ath_softc *s
+ 	 * mode interface or when in monitor mode. AP mode does not need this
+ 	 * since it receives all in-BSS frames anyway.
+ 	 */
+-	if (((sc->sc_ah->opmode != NL80211_IFTYPE_AP) &&
+-	     (sc->rx.rxfilter & FIF_PROMISC_IN_BSS)) ||
+-	    (sc->sc_ah->is_monitoring))
++	if (sc->sc_ah->is_monitoring)
+ 		rfilt |= ATH9K_RX_FILTER_PROM;
+ 
+ 	if (sc->rx.rxfilter & FIF_CONTROL)