On Mon, Mar 27, 2017 at 02:06:45PM +0000, David Laight wrote: > Apart from all the 'out of tree' drivers that will need > fixing and a conditional compile added. That has never been a reason for stopping linux kernel changes. Never mind that your out of tree drivers should probably never have used this function anyway, but pci_enable_msix_{exact,range} which would have been the better choice even before pci_alloc_irq_vectors.