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/pcie-spear13xx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c
index c49fbdc0f6e4..338788b28631 100644
--- a/drivers/pci/host/pcie-spear13xx.c
+++ b/drivers/pci/host/pcie-spear13xx.c
@@ -280,7 +280,8 @@ static int spear13xx_add_pcie_port(struct pcie_port *pp,
return -ENODEV;
}
ret = devm_request_irq(dev, pp->irq, spear13xx_pcie_irq_handler,
- IRQF_SHARED, "spear1340-pcie", pp);
+ IRQF_SHARED | IRQF_NO_THREAD,
+ "spear1340-pcie", pp);
if (ret) {
dev_err(dev, "failed to request irq %d\n", pp->irq);
return ret;
--
2.1.0
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