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-rw-r--r--net/bluetooth/l2cap_core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 3fb2d757df88..514899f7f0d4 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6787,6 +6787,16 @@ static int l2cap_le_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
chan->sdu_len = sdu_len;
chan->sdu_last_frag = skb;
+ /* Detect if remote is not able to use the selected MPS */
+ if (skb->len + L2CAP_SDULEN_SIZE < chan->mps) {
+ u16 mps_len = skb->len + L2CAP_SDULEN_SIZE;
+
+ /* Adjust the number of credits */
+ BT_DBG("chan->mps %u -> %u", chan->mps, mps_len);
+ chan->mps = mps_len;
+ l2cap_chan_le_send_credits(chan);
+ }
+
return 0;
}