commit 32a13df21668b92f70f0673387f29251e0f285ec
author Himanshu Madhani <hmadhani@marvell.com> Fri Aug 30 15:23:59 2019 -0700
committer Martin K. Petersen <martin.petersen@oracle.com> Sat Sep 07 15:38:55 2019 -0400
tree 2a04b146ed39697c8eb2beb5aa37f805378eb6fc
parent cb92cb1657c438efe7c88c9759f40c0a9d46c353

scsi: qla2xxx: Fix driver reload for ISP82xx

HINT_MBX_INT_PENDING is not guaranteed to be cleared by firmware. Remove
check that prevent driver load with ISP82XX.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-4-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_mbx.c

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index a82b6db..4c858e2 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -253,21 +253,9 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 	if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
 		set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
 
-		if (IS_P3P_TYPE(ha)) {
-			if (RD_REG_DWORD(&reg->isp82.hint) &
-				HINT_MBX_INT_PENDING) {
-				ha->flags.mbox_busy = 0;
-				spin_unlock_irqrestore(&ha->hardware_lock,
-					flags);
-
-				atomic_dec(&ha->num_pend_mbx_stage2);
-				ql_dbg(ql_dbg_mbx, vha, 0x1010,
-				    "Pending mailbox timeout, exiting.\n");
-				rval = QLA_FUNCTION_TIMEOUT;
-				goto premature_exit;
-			}
+		if (IS_P3P_TYPE(ha))
 			WRT_REG_DWORD(&reg->isp82.hint, HINT_MBX_INT_PENDING);
-		} else if (IS_FWI2_CAPABLE(ha))
+		else if (IS_FWI2_CAPABLE(ha))
 			WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_SET_HOST_INT);
 		else
 			WRT_REG_WORD(&reg->isp.hccr, HCCR_SET_HOST_INT);