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virtio: Use pci_enable_msix_exact() instead of pci_enable_msix() 

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Alexander Gordeev 2014-03-13 11:23:37 +10:30 committed by Rusty Russell
parent d0190b7307
commit 5e37f67063
1 changed files with 2 additions and 4 deletions
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6
drivers/virtio/virtio_pci.c
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@ -333,10 +333,8 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
for (i = 0; i < nvectors; ++i)
vp_dev->msix_entries[i].entry = i;
/* pci_enable_msix returns positive if we can't get this many. */
err = pci_enable_msix(vp_dev->pci_dev, vp_dev->msix_entries, nvectors);
if (err > 0)
err = -ENOSPC;
err = pci_enable_msix_exact(vp_dev->pci_dev,
vp_dev->msix_entries, nvectors);
if (err)
goto error;
vp_dev->msix_enabled = 1;