Merge branch 'pci/dpc'
- clear interrupt status in top half to avoid interrupt storm (Oza
Pawandeep)
* pci/dpc:
PCI/DPC: Clear interrupt status in interrupt handler top half
diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index 6064041..d643668 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -104,7 +104,7 @@ static pci_ers_result_t dpc_reset_link(struct pci_dev *pdev)
}
pci_write_config_word(pdev, cap + PCI_EXP_DPC_STATUS,
- PCI_EXP_DPC_STATUS_TRIGGER | PCI_EXP_DPC_STATUS_INTERRUPT);
+ PCI_EXP_DPC_STATUS_TRIGGER);
pci_read_config_word(pdev, cap + PCI_EXP_DPC_CTL, &ctl);
pci_write_config_word(pdev, cap + PCI_EXP_DPC_CTL,
@@ -225,6 +225,9 @@ static irqreturn_t dpc_irq(int irq, void *context)
if (dpc->rp_extensions && reason == 3 && ext_reason == 0)
dpc_process_rp_pio_error(dpc);
+ pci_write_config_word(pdev, cap + PCI_EXP_DPC_STATUS,
+ PCI_EXP_DPC_STATUS_INTERRUPT);
+
schedule_work(&dpc->work);
return IRQ_HANDLED;