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[ Upstream commit1c7664957e] Due to a hardware issue, there is a possibility that the driver may miss an MSIx interrupt on the RX/TX data path. Since the TX and RX paths are independent, when a TX MSIx interrupt occurs, the driver can check the RX queue for any pending data and process it if present. The same approach applies to the RX path. Fixes:c2b636b3f7("Bluetooth: btintel_pcie: Add support for PCIe transport") Signed-off-by: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com> Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>