From: Sarang Radke <sarang.radke@xxxxxxxxxx>
This patch fix kernel panic during kdump.
Signed-off-by: Sarang Radke <sarang.radke@xxxxxxxxxx>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx>
---
drivers/scsi/qla4xxx/ql4_init.c | 3 +++
drivers/scsi/qla4xxx/ql4_nx.c | 5 +++++
2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 1bdfa81..90614f3 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -697,6 +697,9 @@ int qla4xxx_start_firmware(struct scsi_qla_host *ha)
writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
&ha->reg->ctrl_status);
readl(&ha->reg->ctrl_status);
+ writel(set_rmask(CSR_SCSI_COMPLETION_INTR),
+ &ha->reg->ctrl_status);
+ readl(&ha->reg->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
DEBUG2(printk("scsi%ld: %s: Get firmware "
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 8d6bc1b..78f1111 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1875,6 +1875,11 @@ exit:
int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
{
int retval;
+
+ /* clear the interrupt */
+ writel(0, &ha->qla4_8xxx_reg->host_int);
+ readl(&ha->qla4_8xxx_reg->host_int);
+
retval = qla4_8xxx_device_state_handler(ha);
if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
--
1.7.8.rc2.3.g0911
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