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Passing IRQF_ONESHOT ensures that the interrupt source is masked until the secondary (threaded) handler is done. If only a primary handler is used then the flag makes no sense because the interrupt can not fire (again) while its handler is running. The flag also prevents force-threading of the primary handler and the irq-core will warn about this. The intention here was probably to not allow forced-threading. Replace IRQF_ONESHOT with IRQF_NO_THREAD. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260128095540.863589-14-bigeasy@linutronix.de