[01/10] qla2xxx: Remove dead code

From: Quinn Tran <qutran@marvell.com>

Removing drport field and FCPORT_UPDATE_NEEDED signals.

Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
---
 drivers/scsi/qla2xxx/qla_attr.c |  5 ++--
 drivers/scsi/qla2xxx/qla_def.h  |  3 +--
 drivers/scsi/qla2xxx/qla_init.c | 48 ---------------------------------
 drivers/scsi/qla2xxx/qla_mid.c  |  9 -------
 drivers/scsi/qla2xxx/qla_os.c   | 13 ++-------
 5 files changed, 5 insertions(+), 73 deletions(-)

> On Dec 21, 2022, at 8:39 PM, Nilesh Javali <njavali@marvell.com> wrote:
> 
> From: Quinn Tran <qutran@marvell.com>
> 
> Removing drport field and FCPORT_UPDATE_NEEDED signals.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Quinn Tran <qutran@marvell.com>
> Signed-off-by: Nilesh Javali <njavali@marvell.com>
> ---
> drivers/scsi/qla2xxx/qla_attr.c |  5 ++--
> drivers/scsi/qla2xxx/qla_def.h  |  3 +--
> drivers/scsi/qla2xxx/qla_init.c | 48 ---------------------------------
> drivers/scsi/qla2xxx/qla_mid.c  |  9 -------
> drivers/scsi/qla2xxx/qla_os.c   | 13 ++-------
> 5 files changed, 5 insertions(+), 73 deletions(-)
> 
> diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
> index fa1fcbfb946f..6a4bc59d6525 100644
> --- a/drivers/scsi/qla2xxx/qla_attr.c
> +++ b/drivers/scsi/qla2xxx/qla_attr.c
> @@ -2732,7 +2732,7 @@ qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
> 	spin_lock_irqsave(host->host_lock, flags);
> 	/* Confirm port has not reappeared before clearing pointers. */
> 	if (rport->port_state != FC_PORTSTATE_ONLINE) {
> -		fcport->rport = fcport->drport = NULL;
> +		fcport->rport = NULL;
> 		*((fc_port_t **)rport->dd_data) = NULL;
> 	}
> 	spin_unlock_irqrestore(host->host_lock, flags);
> @@ -3171,8 +3171,7 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
> 
> 	set_bit(VPORT_DELETE, &vha->dpc_flags);
> 
> -	while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags) ||
> -	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags))
> +	while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
> 		msleep(1000);
> 
> 
> diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
> index cd4eb11b0707..0dde3fa9e258 100644
> --- a/drivers/scsi/qla2xxx/qla_def.h
> +++ b/drivers/scsi/qla2xxx/qla_def.h
> @@ -2596,7 +2596,7 @@ typedef struct fc_port {
> 
> 	int login_retry;
> 
> -	struct fc_rport *rport, *drport;
> +	struct fc_rport *rport;
> 	u32 supported_classes;
> 
> 	uint8_t fc4_type;
> @@ -4876,7 +4876,6 @@ typedef struct scsi_qla_host {
> #define ISP_ABORT_RETRY		10	/* ISP aborted. */
> #define BEACON_BLINK_NEEDED	11
> #define REGISTER_FDMI_NEEDED	12
> -#define FCPORT_UPDATE_NEEDED	13
> #define VP_DPC_NEEDED		14	/* wake up for VP dpc handling */
> #define UNLOADING		15
> #define NPIV_CONFIG_NEEDED	16
> diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
> index 6968e8d08968..ca216b820b1c 100644
> --- a/drivers/scsi/qla2xxx/qla_init.c
> +++ b/drivers/scsi/qla2xxx/qla_init.c
> @@ -5224,27 +5224,6 @@ qla2x00_nvram_config(scsi_qla_host_t *vha)
> 	return (rval);
> }
> 
> -static void
> -qla2x00_rport_del(void *data)
> -{
> -	fc_port_t *fcport = data;
> -	struct fc_rport *rport;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
> -	rport = fcport->drport ? fcport->drport : fcport->rport;
> -	fcport->drport = NULL;
> -	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
> -	if (rport) {
> -		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
> -		    "%s %8phN. rport %p roles %x\n",
> -		    __func__, fcport->port_name, rport,
> -		    rport->roles);
> -
> -		fc_remote_port_delete(rport);
> -	}
> -}
> -
> void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
> {
> 	int old_state;
> @@ -6761,33 +6740,6 @@ int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
> 	return rval;
> }
> 
> -void
> -qla2x00_update_fcports(scsi_qla_host_t *base_vha)
> -{
> -	fc_port_t *fcport;
> -	struct scsi_qla_host *vha, *tvp;
> -	struct qla_hw_data *ha = base_vha->hw;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(&ha->vport_slock, flags);
> -	/* Go with deferred removal of rport references. */
> -	list_for_each_entry_safe(vha, tvp, &base_vha->hw->vp_list, list) {
> -		atomic_inc(&vha->vref_count);
> -		list_for_each_entry(fcport, &vha->vp_fcports, list) {
> -			if (fcport->drport &&
> -			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
> -				spin_unlock_irqrestore(&ha->vport_slock, flags);
> -				qla2x00_rport_del(fcport);
> -
> -				spin_lock_irqsave(&ha->vport_slock, flags);
> -			}
> -		}
> -		atomic_dec(&vha->vref_count);
> -		wake_up(&vha->vref_waitq);
> -	}
> -	spin_unlock_irqrestore(&ha->vport_slock, flags);
> -}
> -
> /* Assumes idc_lock always held on entry */
> void
> qla83xx_reset_ownership(scsi_qla_host_t *vha)
> diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
> index 16a9f22bb860..5fff17da0202 100644
> --- a/drivers/scsi/qla2xxx/qla_mid.c
> +++ b/drivers/scsi/qla2xxx/qla_mid.c
> @@ -384,15 +384,6 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
> 		}
> 	}
> 
> -	if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
> -		ql_dbg(ql_dbg_dpc, vha, 0x4016,
> -		    "FCPort update scheduled.\n");
> -		qla2x00_update_fcports(vha);
> -		clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
> -		ql_dbg(ql_dbg_dpc, vha, 0x4017,
> -		    "FCPort update end.\n");
> -	}
> -
> 	if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
> 	    !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
> 	    atomic_read(&vha->loop_state) != LOOP_DOWN) {
> diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
> index 2d86f804872b..078b63b89189 100644
> --- a/drivers/scsi/qla2xxx/qla_os.c
> +++ b/drivers/scsi/qla2xxx/qla_os.c
> @@ -7025,11 +7025,6 @@ qla2x00_do_dpc(void *data)
> 			}
> 		}
> 
> -		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
> -		    &base_vha->dpc_flags)) {
> -			qla2x00_update_fcports(base_vha);
> -		}
> -
> 		if (IS_QLAFX00(ha))
> 			goto loop_resync_check;
> 
> @@ -7525,7 +7520,6 @@ qla2x00_timer(struct timer_list *t)
> 	/* Schedule the DPC routine if needed */
> 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
> 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
> -	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
> 	    start_dpc ||
> 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
> 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
> @@ -7536,13 +7530,10 @@ qla2x00_timer(struct timer_list *t)
> 	    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
> 		ql_dbg(ql_dbg_timer, vha, 0x600b,
> 		    "isp_abort_needed=%d loop_resync_needed=%d "
> -		    "fcport_update_needed=%d start_dpc=%d "
> -		    "reset_marker_needed=%d",
> +		    "start_dpc=%d reset_marker_needed=%d",
> 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
> 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
> -		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
> -		    start_dpc,
> -		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
> +		    start_dpc, test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
> 		ql_dbg(ql_dbg_timer, vha, 0x600c,
> 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
> 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
> -- 
> 2.19.0.rc0
> 

Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>