* irq_handler_notify - Fast notification delivery for simple IRQs * @uirq: user IRQ descriptor * * Delivers IRQ event via notification system instead of full IPC. * Significantly faster (5-10×) for IRQs that don't need complex payload. * * IRQ number is encoded in notification bit: (1 << irq) * For IRQs >= 32, uses IRQ_HIGH_BIT and event_data field. * * Use cases: * - GPIO edge detection
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