linux-kernel - [PATCH v3 2/2] Bluetooth: Attempt to clear HCI_LE

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Message-Id: <20211111132045.v3.2.I4e34d9e5fdd7515aa15d0ee2ef94d57dcb48a927@changeid>
Date:   Thu, 11 Nov 2021 13:20:54 +0800
From:   Archie Pusaka <apusaka@...gle.com>
To:     linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        Marcel Holtmann <marcel@...tmann.org>
Cc:     CrosBT Upstreaming <chromeos-bluetooth-upstreaming@...omium.org>,
        Archie Pusaka <apusaka@...omium.org>,
        Miao-chen Chou <mcchou@...omium.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH v3 2/2] Bluetooth: Attempt to clear HCI_LE_ADV on adv set
 terminated error event

From: Archie Pusaka <apusaka@...omium.org>

We should clear the flag if the adv instance removed due to receiving
this error status is the last one we have.

Signed-off-by: Archie Pusaka <apusaka@...omium.org>
Reviewed-by: Miao-chen Chou <mcchou@...omium.org>

---

Changes in v3:
* Check adv->enabled rather than just checking for list empty

 net/bluetooth/hci_event.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7d875927c48b..6cf882e6d7e7 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5532,7 +5532,7 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data;
 	struct hci_conn *conn;
-	struct adv_info *adv;
+	struct adv_info *adv, *n;
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
 
@@ -5558,6 +5558,13 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_remove_adv_instance(hdev, ev->handle);
 		mgmt_advertising_removed(NULL, hdev, ev->handle);
 
+		list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
+			if (adv->enabled)
+				return;
+		}
+
+		/* We are no longer advertising, clear HCI_LE_ADV */
+		hci_dev_clear_flag(hdev, HCI_LE_ADV);
 		return;
 	}
 
-- 
2.34.0.rc0.344.g81b53c2807-goog