scsi: qla2xxx: Remove aborting ELS IOCB call issued as part of timeout.

This fix the spinlock recursion issue seen while unloading the driver.

14 [ffff9f2e21e03db8] native_queued_spin_lock_slowpath at ffffffffad0d8802
15 [ffff9f2e21e03dc0] do_raw_spin_lock at ffffffffad0d99e4
16 [ffff9f2e21e03dd8] _raw_spin_lock_irqsave at ffffffffad652471
17 [ffff9f2e21e03e00] qla2x00_els_dcmd_iocb_timeout at ffffffffc070cd63
18 [ffff9f2e21e03e40] qla2x00_sp_timeout at ffffffffc06f06d3 [qla2xxx]
19 [ffff9f2e21e03e68] call_timer_fn at ffffffffad0f97d8
20 [ffff9f2e21e03ed8] run_timer_softirq at ffffffffad0faf47
21 [ffff9f2e21e03f68] __softirqentry_text_start at ffffffffad655f32

Fixes: 6eb54715b54bb ("qla2xxx: Added interface to send explicit LOGO.")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 106f4ac..8ea5958 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2392,7 +2392,6 @@ qla2x00_els_dcmd_iocb_timeout(void *data)
        srb_t *sp = data;
        fc_port_t *fcport = sp->fcport;
        struct scsi_qla_host *vha = sp->vha;
-       struct qla_hw_data *ha = vha->hw;
        struct srb_iocb *lio = &sp->u.iocb_cmd;
 
        ql_dbg(ql_dbg_io, vha, 0x3069,
@@ -2400,15 +2399,6 @@ qla2x00_els_dcmd_iocb_timeout(void *data)
            sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
            fcport->d_id.b.al_pa);
 
-       /* Abort the exchange */
-       if (ha->isp_ops->abort_command(sp)) {
-               ql_dbg(ql_dbg_io, vha, 0x3070,
-                   "mbx abort_command failed.\n");
-       } else {
-               ql_dbg(ql_dbg_io, vha, 0x3071,
-                   "mbx abort_command success.\n");
-       }
-
        complete(&lio->u.els_logo.comp);
 }