[PATCH 7/8] GAS: End remain-on-channel due to delayed GAS comeback request

Ilan Peer ilan.peer at intel.com
Thu Dec 10 02:56:08 PST 2015

From: Matti Gottlieb <matti.gottlieb at intel.com>

During the sequence of exchanging GAS frames with the AP, the AP can
request to comeback in X amount of time and resend the GAS request.

Currently the wpa_supplicant does not initiate the termination of the
remain-on-channel session, but rather waits until the requested comeback
delay has expired, and then tries to send the GAS frame (potentially
to save the time that is required to schedule a new remain on channel

This might cause unnecessary idle time (can be close to 1000 ms) in which the
device might be off-channel. Ending the current remain-on-channel session and
then rescheduling makes better usage of the time in this case.

End remain-on-channel session due to receiving a delayed GAS comeback request
from the AP.

Signed-off-by: Matti Gottlieb <matti.gottlieb at intel.com>
 wpa_supplicant/gas_query.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wpa_supplicant/gas_query.c b/wpa_supplicant/gas_query.c
index 10ecce7..65dec2b 100644
--- a/wpa_supplicant/gas_query.c
+++ b/wpa_supplicant/gas_query.c
@@ -319,6 +319,8 @@ static void gas_query_tx_comeback_req_delay(struct gas_query *gas,
 	unsigned int secs, usecs;
+	offchannel_send_action_done(gas->wpa_s);
 	secs = (comeback_delay * 1024) / 1000000;
 	usecs = comeback_delay * 1024 - secs * 1000000;
 	wpa_printf(MSG_DEBUG, "GAS: Send comeback request to " MACSTR

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