linux-kernel - [PATCH 2/2] Bluetooth: hci_sync: Cancel AdvMonitor interleave scan when suspend

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Message-Id: <20220803132319.2.I27d3502a0851c75c0c31fb7fea9b09644d54d81d@changeid>
Date:   Wed,  3 Aug 2022 13:24:51 -0700
From:   Manish Mandlik <mmandlik@...gle.com>
To:     marcel@...tmann.org, luiz.dentz@...il.com
Cc:     chromeos-bluetooth-upstreaming@...omium.org,
        linux-bluetooth@...r.kernel.org,
        Manish Mandlik <mmandlik@...gle.com>,
        Miao-chen Chou <mcchou@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Paolo Abeni <pabeni@...hat.com>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH 2/2] Bluetooth: hci_sync: Cancel AdvMonitor interleave scan
 when suspend

Cancel interleaved scanning for advertisement monitor when suspend.

Fixes: 182ee45da083 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")

Signed-off-by: Manish Mandlik <mmandlik@...gle.com>
Reviewed-by: Miao-chen Chou <mcchou@...gle.com>
---

 net/bluetooth/hci_sync.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index cb0c219ebe1c..33d2221b2bc4 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -1721,6 +1721,9 @@ static bool is_interleave_scanning(struct hci_dev *hdev)
 
 static void cancel_interleave_scan(struct hci_dev *hdev)
 {
+	if (!is_interleave_scanning(hdev))
+		return;
+
 	bt_dev_dbg(hdev, "cancelling interleave scan");
 
 	cancel_delayed_work_sync(&hdev->interleave_scan);
@@ -5288,6 +5291,9 @@ int hci_suspend_sync(struct hci_dev *hdev)
 	/* Pause other advertisements */
 	hci_pause_advertising_sync(hdev);
 
+	/* Cancel interleaved scan */
+	cancel_interleave_scan(hdev);
+
 	/* Suspend monitor filters */
 	hci_suspend_monitor_sync(hdev);
 
-- 
2.37.1.455.g008518b4e5-goog