s390/qdio: clean up q->irq_ptr usage
In tiqdio_call_inq_handlers(), we're looping over all input queues on the *same* irq. So instead of using the queues' back pointer, we can just access the irq directly. No functional change. Signed-off-by: NJulian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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