s390/pci: Drop the unused index argument of zpci_msi_clear_airq()

zpci_msi_domain_free() passes its loop index to zpci_msi_clear_airq(),
which adds it to an offset that already accounts for it.
zpci_msi_domain_alloc() stores hwirq + i for each vector, so
zpci_decode_hwirq_msi_index() hands back msi_index + i and bit is
already zdev->msi_first_bit + msi_index + i.

The doubled index never selected a wrong entry. An irq domain's free()
callback is only ever invoked from irq_domain_free_irqs_hierarchy(),
which walks the range itself and passes a count of one. So, the loop in
zpci_msi_domain_free() runs once with an index of zero.

Drop the parameter and the addition.

No functional change.

Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Tobias Schumacher <ts@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

0 files changed, 0 insertions, 0 deletions