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@xxxxxxxxx>
---
drivers/pci/host/pci-dra7xx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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");
--
2.1.0
--
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