Commit 74beaf62 authored Feb 27, 2015 by Konrad Rzeszutek Wilk Committed by David Vrabel Mar 16, 2015

xen/pciback: Don't print scary messages when unsupported by hypervisor.



We print at the warninig level messages such as:
pciback 0000:90:00.5: MSI-X preparation failed (-38)

which is due to the hypervisor not supporting this sub-hypercall
(which was added in Xen 4.3).

Instead of having scary messages all the time - only have it
when the hypercall is actually supported.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>

parent 526abeae

drivers/xen/xen-pciback/pci_stub.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -118,7 +118,7 @@ static void pcistub_device_release(struct kref *kref)
		int err = HYPERVISOR_physdev_op(PHYSDEVOP_release_msix,
		&ppdev);

		if (err)
		if (err && err != -ENOSYS)
		dev_warn(&dev->dev, "MSI-X release failed (%d)\n",
		err);
		}
		@@ -402,7 +402,7 @@ static int pcistub_init_device(struct pci_dev *dev)
		};

		err = HYPERVISOR_physdev_op(PHYSDEVOP_prepare_msix, &ppdev);
		if (err)
		if (err && err != -ENOSYS)
		dev_err(&dev->dev, "MSI-X preparation failed (%d)\n",
		err);
		}