Bluetooth: Add clarifying comment when setting local OOB flag

It might be a bit counterintuitive to set a 'local' flag based on remote
data. This patch adds a clarifying comment to the pairing req/rsp
handlers when setting the LOCAL_OOB flag based on the PDU received from
the remote side.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 82824213d0fb..1bd281060de2 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -1735,6 +1735,10 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
         memcpy(&smp->preq[1], req, sizeof(*req));
         skb_pull(skb, sizeof(*req));
 
+        /* If the remote side's OOB flag is set it means it has
+         * successfully received our local OOB data - therefore set the
+         * flag to indicate that local OOB is in use.
+         */
         if (req->oob_flag == SMP_OOB_PRESENT)
                 set_bit(SMP_FLAG_LOCAL_OOB, &smp->flags);
 
@@ -1902,6 +1906,10 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
         if (hci_dev_test_flag(hdev, HCI_SC_ONLY) && !(auth & SMP_AUTH_SC))
                 return SMP_AUTH_REQUIREMENTS;
 
+        /* If the remote side's OOB flag is set it means it has
+         * successfully received our local OOB data - therefore set the
+         * flag to indicate that local OOB is in use.
+         */
         if (rsp->oob_flag == SMP_OOB_PRESENT)
                 set_bit(SMP_FLAG_LOCAL_OOB, &smp->flags);