[PATCH] KVM: Use IRQF_ONESHOT for assigned device MSI interrupts

From: Alex Williamson
Date: Fri Jun 01 2012 - 12:16:24 EST


The kernel no longer allows us to pass NULL for a hard interrupt
handler without IRQF_ONESHOT. Should have been using this flag
anyway.

Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=43328

Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
---

virt/kvm/assigned-dev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index 01f572c..e804d14 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -347,7 +347,7 @@ static int assigned_device_enable_host_msi(struct kvm *kvm,

dev->host_irq = dev->dev->irq;
if (request_threaded_irq(dev->host_irq, NULL,
- kvm_assigned_dev_thread_msi, 0,
+ kvm_assigned_dev_thread_msi, IRQF_ONESHOT,
dev->irq_name, dev)) {
pci_disable_msi(dev->dev);
return -EIO;
@@ -375,7 +375,7 @@ static int assigned_device_enable_host_msix(struct kvm *kvm,
for (i = 0; i < dev->entries_nr; i++) {
r = request_threaded_irq(dev->host_msix_entries[i].vector,
NULL, kvm_assigned_dev_thread_msix,
- 0, dev->irq_name, dev);
+ IRQF_ONESHOT, dev->irq_name, dev);
if (r)
goto err;
}

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