6.6-stable review patch. If anyone has any objections, please let me know.
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From: Neeraj Sanjay Kale neeraj.sanjaykale@nxp.com
[ Upstream commit 7de119bb79a63f6a1959b83117a98734914fb0b0 ]
This fixes a regression caused by previous commit for fixing truncated ACL data, which is causing some intermittent glitches when running two A2DP streams.
serdev_device_write_buf() is the root cause of the glitch, which is reverted, and the TX work will continue to write until the queue is empty.
This change fixes both issues. No A2DP streaming glitches or truncated ACL data issue observed.
Fixes: 8023dd220425 ("Bluetooth: btnxpuart: Fix driver sending truncated data") Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets") Signed-off-by: Neeraj Sanjay Kale neeraj.sanjaykale@nxp.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/btnxpuart.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c index e809bb2dbe5e0..a4274d8c7faaf 100644 --- a/drivers/bluetooth/btnxpuart.c +++ b/drivers/bluetooth/btnxpuart.c @@ -1280,13 +1280,12 @@ static void btnxpuart_tx_work(struct work_struct *work)
while ((skb = nxp_dequeue(nxpdev))) { len = serdev_device_write_buf(serdev, skb->data, skb->len); - serdev_device_wait_until_sent(serdev, 0); hdev->stat.byte_tx += len;
skb_pull(skb, len); if (skb->len > 0) { skb_queue_head(&nxpdev->txq, skb); - break; + continue; }
switch (hci_skb_pkt_type(skb)) {