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[ Upstream commit28abed6569] There is no added value in btintel_pcie_msix_isr() compared to irq_default_primary_handler(). Using a threaded interrupt without a dedicated primary handler mandates the IRQF_ONESHOT flag to mask the interrupt source while the threaded handler is active. Otherwise the interrupt can fire again before the threaded handler had a chance to run. Use the default primary interrupt handler by specifying NULL and set IRQF_ONESHOT so the interrupt source is masked until the secondary handler is done. Fixes:c2b636b3f7("Bluetooth: btintel_pcie: Add support for PCIe transport") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260128095540.863589-7-bigeasy@linutronix.de Signed-off-by: Sasha Levin <sashal@kernel.org>