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Bluetooth: Controller: Fix DLE to check supported rx length

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When the Controller is configured to support less than 251
as the supported maximum data length, missing check caused
the Controller to incorrectly re-initialize its rx buffers
causing assert during the DLE procedure. This commit fixes
the procedure to correctly use the supported maximum length
if the peer requests a transmit length that exceeds the
supported receive length.

Change-id: I6ad7196e3db44b303ddf2ec06e0ae579bf2eb774
Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This commit is contained in:
Vinayak Chettimada 2016-11-29 04:37:04 +01:00 • committed by Johan Hedberg
commit f0186d716d
1 changed files with 6 additions and 2 deletions
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8
subsys/bluetooth/controller/ll/ctrl.c
View file

@ -1266,8 +1266,12 @@ static inline void isr_rx_conn_pkt_ctrl_dle(struct pdu_data *pdu_data_rx,
eff_tx_octets = lr->max_rx_octets;
}
/* use the peer tx as eff rx octets */
if (lr->max_tx_octets != _radio.conn_curr->max_rx_octets) {
/* use the minimal of our max supported and
* peer max_tx_octets
*/
if (lr->max_tx_octets > RADIO_LL_LENGTH_OCTETS_RX_MAX) {
eff_rx_octets = RADIO_LL_LENGTH_OCTETS_RX_MAX;
} else {
eff_rx_octets = lr->max_tx_octets;
}