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PCI: Disable AER with pci=nomsi

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When booting with pci=nomsi aer causes lost interrupts and
lockdep inversions.

So check if MSIs are not disabled before initializing the aer
driver.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Andi Kleen 2009-09-16 22:40:22 +02:00 • committed by Jesse Barnes
parent 7557b5d632
commit 3e77a3f789
1 changed files with 2 additions and 0 deletions
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2
drivers/pci/pcie/aer/aerdrv.c
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@ -318,6 +318,8 @@ static int __init aer_service_init(void)
{ {
if (pcie_aer_disable) if (pcie_aer_disable)
return -ENXIO; return -ENXIO;
if (!pci_msi_enabled())
return -ENXIO;
return pcie_port_service_register(&aerdriver); return pcie_port_service_register(&aerdriver);
} }