| Message ID | 1437715776-2243-3-git-send-email-haokexin@gmail.com |
|---|---|
| State | Changes Requested |
| Headers | show |
diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c index 80db09e47800..66aa9286cfc8 100644 --- a/drivers/pci/host/pci-dra7xx.c +++ b/drivers/pci/host/pci-dra7xx.c @@ -284,7 +284,8 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx, } ret = devm_request_irq(&pdev->dev, pp->irq, - dra7xx_pcie_msi_irq_handler, IRQF_SHARED, + dra7xx_pcie_msi_irq_handler, + IRQF_SHARED | IRQF_NO_THREAD, "dra7-pcie-msi", pp); if (ret) { dev_err(&pdev->dev, "failed to request irq\n");
The cascade handler must run in hard interrupt context, otherwise it will cause dead lock if we force threading of all the interrupt handlers via kernel command parameter "threadirqs". Signed-off-by: Kevin Hao <haokexin@gmail.com> --- drivers/pci/host/pci-dra7xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)