Commit 9dadfb97 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Martin K. Petersen

scsi: ipr: Fix runaway IRQs when falling back from MSI to LSI

LSIs must be ack'ed with an MMIO otherwise they remain asserted
forever. This is controlled by the "clear_isr" flag.

While we set that flag properly when deciding initially whether to use
LSIs or MSIs, we fail to set it if we first chose MSIs, the test fails,
then fallback to LSIs.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarBrian King <brking@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent af25756d
...@@ -10157,6 +10157,7 @@ static int ipr_probe_ioa(struct pci_dev *pdev, ...@@ -10157,6 +10157,7 @@ static int ipr_probe_ioa(struct pci_dev *pdev,
pci_free_irq_vectors(pdev); pci_free_irq_vectors(pdev);
ioa_cfg->nvectors = 1; ioa_cfg->nvectors = 1;
ioa_cfg->clear_isr = 1;
break; break;
default: default:
goto out_msi_disable; goto out_msi_disable;
......
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