ipr: Clear interrupt on croc/crocodile when running with LSI

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.

Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index d4473d2f873956b3f4bf8208de0a3e14cec5dea6..676c03e63cae6deefd97f2eebe94044411a3cec2 100644 (file)
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9644,6 +9644,7 @@ 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");
        }