We'll always get NULL back in that case, so skip the call and the resulting warning. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/pci/msi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 253d92409bb3..19653e5cb68f 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -538,7 +538,7 @@ msi_setup_entry(struct pci_dev *dev, int nvec, const struct irq_affinity *affd) struct msi_desc *entry; u16 control; - if (affd) { + if (affd && nvec > 1) { masks = irq_create_affinity_masks(nvec, affd); if (!masks) dev_err(&dev->dev, "can't allocate MSI affinity masks for %d vectors\n", @@ -679,7 +679,7 @@ static int msix_setup_entries(struct pci_dev *dev, void __iomem *base, struct msi_desc *entry; int ret, i; - if (affd) { + if (affd && nvec > 1) { masks = irq_create_affinity_masks(nvec, affd); if (!masks) dev_err(&dev->dev, "can't allocate MSI-X affinity masks for %d vectors\n", -- 2.11.0