From: Brian King <brk...@linux.vnet.ibm.com>

commit 54e430bbd490e18ab116afa4cd90dcc45787b3df upstream.

If we fall back to using LSI on the Croc or Crocodile chip we need to
clear the interrupt so we don't hang the system.

Cc: <sta...@vger.kernel.org>
Tested-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Signed-off-by: Brian King <brk...@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com>
Signed-off-by: Willy Tarreau <w...@1wt.eu>
---
 drivers/scsi/ipr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 25ac2c0..2891faa 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9607,6 +9607,7 @@ static int ipr_probe_ioa(struct pci_dev *pdev,
                ioa_cfg->intr_flag = IPR_USE_MSI;
        else {
                ioa_cfg->intr_flag = IPR_USE_LSI;
+               ioa_cfg->clear_isr = 1;
                ioa_cfg->nvectors = 1;
                dev_info(&pdev->dev, "Cannot enable MSI.\n");
        }
-- 
2.8.0.rc2.1.gbe9624a

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