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Index: madwifi-trunk-r3314/ath/if_ath.c
===================================================================
--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-04-23 06:50:24.000000000 +0200
+++ madwifi-trunk-r3314/ath/if_ath.c 2008-04-23 06:54:03.000000000 +0200
@@ -2721,6 +2721,9 @@
static int
ath_set_ack_bitrate(struct ath_softc *sc, int high)
{
+ if (!sc->sc_ackrate_override)
+ return 0;
+
if (ar_device(sc->devid) == 5212 || ar_device(sc->devid) == 5213) {
/* set ack to be sent at low bit-rate */
/* registers taken from the OpenBSD 5212 HAL */
@@ -10782,8 +10785,13 @@
break;
#endif
case ATH_ACKRATE:
- sc->sc_ackrate = val;
- ath_set_ack_bitrate(sc, sc->sc_ackrate);
+ if (val == -1)
+ sc->sc_ackrate_override = 0;
+ else {
+ sc->sc_ackrate_override = 1;
+ sc->sc_ackrate = val;
+ ath_set_ack_bitrate(sc, sc->sc_ackrate);
+ }
break;
case ATH_RP:
ath_rp_record(sc,
Index: madwifi-trunk-r3314/ath/if_athvar.h
===================================================================
--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-04-23 05:41:40.000000000 +0200
+++ madwifi-trunk-r3314/ath/if_athvar.h 2008-04-23 06:53:03.000000000 +0200
@@ -681,6 +681,7 @@
unsigned int sc_devstopped:1; /* stopped due to of no tx bufs */
unsigned int sc_stagbeacons:1; /* use staggered beacons */
unsigned int sc_dfswait:1; /* waiting on channel for radar detect */
+ unsigned int sc_ackrate_override:1; /* override ack rate */
unsigned int sc_ackrate:1; /* send acks at high bitrate */
unsigned int sc_dfs_cac:1; /* waiting on channel for radar detect */
unsigned int sc_hasintmit:1; /* Interference mitigation */
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