search for: mask_and_ack_8259a_irq

...qs delivered through the i8259 PIC after IO-APICs had been set up. However, if supurious PIC vectors are received, many "No irq handler for vector" log messages can be seen on the console. This patch adds to the bogus vector logic to detect spurious PIC vectors and simply ignore them. _mask_and_ack_8259A_irq() has been modified to return a boolean indicating whether the irq is real or not, and in the case of a spurious vector, the error in do_IRQ() is not printed. One complication is that now, _mask_and_ack_8259A_irq() can get called whatever the ack mode is, so has been altered to work out whether it...