scsi: pm8001: Simplify pm8001_ccb_task_free()

The task argument of the pm8001_ccb_task_free() function can be inferred
from the ccb argument ccb_task field. So there is no need to have this
argument. Likewise, the ccb_index argument is always equal to the ccb tag
field and is not needed either. Remove both arguments and update all call
sites. The pm8001_ccb_task_free_done() helper is also modified to match
this change.

Link: https://lore.kernel.org/r/20220220031810.738362-30-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index eb6e096..1569aa4 100644 (file)
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1564,11 +1564,11 @@ void pm8001_work_fn(struct work_struct *work)
                        spin_unlock_irqrestore(&t->task_state_lock, flags1);
                        pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                                   t, pw->handler, ts->resp, ts->stat);
-                       pm8001_ccb_task_free(pm8001_ha, t, ccb, ccb->ccb_tag);
+                       pm8001_ccb_task_free(pm8001_ha, ccb);
                        spin_unlock_irqrestore(&pm8001_ha->lock, flags);
                } else {
                        spin_unlock_irqrestore(&t->task_state_lock, flags1);
-                       pm8001_ccb_task_free(pm8001_ha, t, ccb, ccb->ccb_tag);
+                       pm8001_ccb_task_free(pm8001_ha, ccb);
                        mb();/* in order to force CPU ordering */
                        spin_unlock_irqrestore(&pm8001_ha->lock, flags);
                        t->task_done(t);
@@ -1697,8 +1697,7 @@ void pm8001_work_fn(struct work_struct *work)
                                        continue;
                                }
                                /*complete sas task and update to top layer */
-                               pm8001_ccb_task_free(pm8001_ha, task, ccb,
-                                                    ccb->ccb_tag);
+                               pm8001_ccb_task_free(pm8001_ha, ccb);
                                ts->resp = SAS_TASK_COMPLETE;
                                task->task_done(task);
                        } else if (ccb->ccb_tag != PM8001_INVALID_TAG) {
@@ -2084,10 +2083,10 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                spin_unlock_irqrestore(&t->task_state_lock, flags);
                pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
                mb();/* in order to force CPU ordering */
                t->task_done(t);
        }
@@ -2251,10 +2250,10 @@ static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
                spin_unlock_irqrestore(&t->task_state_lock, flags);
                pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, event, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
                mb();/* in order to force CPU ordering */
                t->task_done(t);
        }
@@ -2480,7 +2479,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                                IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
                        ts->resp = SAS_TASK_UNDELIVERED;
                        ts->stat = SAS_QUEUE_FULL;
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        return;
                }
                break;
@@ -2496,7 +2495,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                                IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
                        ts->resp = SAS_TASK_UNDELIVERED;
                        ts->stat = SAS_QUEUE_FULL;
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        return;
                }
                break;
@@ -2518,7 +2517,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                                IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
                        ts->resp = SAS_TASK_UNDELIVERED;
                        ts->stat = SAS_QUEUE_FULL;
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        return;
                }
                break;
@@ -2589,7 +2588,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                                    IO_DS_NON_OPERATIONAL);
                        ts->resp = SAS_TASK_UNDELIVERED;
                        ts->stat = SAS_QUEUE_FULL;
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        return;
                }
                break;
@@ -2609,7 +2608,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                                    IO_DS_IN_ERROR);
                        ts->resp = SAS_TASK_UNDELIVERED;
                        ts->stat = SAS_QUEUE_FULL;
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        return;
                }
                break;
@@ -2639,10 +2638,10 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                pm8001_dbg(pm8001_ha, FAIL,
                           "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free_done(pm8001_ha, ccb);
        }
 }
 
@@ -2994,12 +2993,10 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                spin_unlock_irqrestore(&t->task_state_lock, flags);
                pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
-               mb();/* in order to force CPU ordering */
-               t->task_done(t);
+               pm8001_ccb_task_free_done(pm8001_ha, ccb);
        }
 }
 
@@ -3649,7 +3646,7 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
        t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
        t->task_state_flags |= SAS_TASK_STATE_DONE;
        spin_unlock_irqrestore(&t->task_state_lock, flags);
-       pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+       pm8001_ccb_task_free(pm8001_ha, ccb);
        mb();
 
        if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
@@ -4287,12 +4284,11 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
                                           "task 0x%p resp 0x%x  stat 0x%x but aborted by upper layer\n",
                                           task, ts->resp,
                                           ts->stat);
-                               pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
+                               pm8001_ccb_task_free(pm8001_ha, ccb);
                        } else {
                                spin_unlock_irqrestore(&task->task_state_lock,
                                                        flags);
-                               pm8001_ccb_task_free_done(pm8001_ha, task,
-                                                               ccb, tag);
+                               pm8001_ccb_task_free_done(pm8001_ha, ccb);
                                return 0;
                        }
                }

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index ecd5cca..ac9c40c 100644 (file)
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -489,22 +489,21 @@ err_out:
 /**
   * pm8001_ccb_task_free - free the sg for ssp and smp command, free the ccb.
   * @pm8001_ha: our hba card information
-  * @ccb: the ccb which attached to ssp task
-  * @task: the task to be free.
-  * @ccb_idx: ccb index.
+  * @ccb: the ccb which attached to ssp task to free
   */
 void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
-       struct sas_task *task, struct pm8001_ccb_info *ccb, u32 ccb_idx)
+                         struct pm8001_ccb_info *ccb)
 {
+       struct sas_task *task = ccb->task;
        struct ata_queued_cmd *qc;
        struct pm8001_device *pm8001_dev;
 
-       if (!ccb->task)
+       if (!task)
                return;
-       if (!sas_protocol_ata(task->task_proto))
-               if (ccb->n_elem)
-                       dma_unmap_sg(pm8001_ha->dev, task->scatter,
-                               task->num_scatter, task->data_dir);
+
+       if (!sas_protocol_ata(task->task_proto) && ccb->n_elem)
+               dma_unmap_sg(pm8001_ha->dev, task->scatter,
+                            task->num_scatter, task->data_dir);
 
        switch (task->task_proto) {
        case SAS_PROTOCOL_SMP:
@@ -523,12 +522,12 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
        }
 
        if (sas_protocol_ata(task->task_proto)) {
-               // For SCSI/ATA commands uldd_task points to ata_queued_cmd
+               /* For SCSI/ATA commands uldd_task points to ata_queued_cmd */
                qc = task->uldd_task;
                pm8001_dev = ccb->device;
                trace_pm80xx_request_complete(pm8001_ha->id,
                        pm8001_dev ? pm8001_dev->attached_phy : PM8001_MAX_PHYS,
-                       ccb_idx, 0 /* ctlr_opcode not known */,
+                       ccb->ccb_tag, 0 /* ctlr_opcode not known */,
                        qc ? qc->tf.command : 0, // ata opcode
                        pm8001_dev ? atomic_read(&pm8001_dev->running_req) : -1);
        }
@@ -844,11 +843,11 @@ void pm8001_open_reject_retry(
                                & SAS_TASK_STATE_ABORTED))) {
                        spin_unlock_irqrestore(&task->task_state_lock,
                                flags1);
-                       pm8001_ccb_task_free(pm8001_ha, task, ccb, ccb->ccb_tag);
+                       pm8001_ccb_task_free(pm8001_ha, ccb);
                } else {
                        spin_unlock_irqrestore(&task->task_state_lock,
                                flags1);
-                       pm8001_ccb_task_free(pm8001_ha, task, ccb, ccb->ccb_tag);
+                       pm8001_ccb_task_free(pm8001_ha, ccb);
                        mb();/* in order to force CPU ordering */
                        spin_unlock_irqrestore(&pm8001_ha->lock, flags);
                        task->task_done(task);

diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 9f5d6ab..6bbf118 100644 (file)
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -637,7 +637,7 @@ int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out);
 void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha);
 u32 pm8001_get_ncq_tag(struct sas_task *task, u32 *tag);
 void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
-       struct sas_task *task, struct pm8001_ccb_info *ccb, u32 ccb_idx);
+                         struct pm8001_ccb_info *ccb);
 int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
        void *funcdata);
 void pm8001_scan_start(struct Scsi_Host *shost);
@@ -780,12 +780,12 @@ static inline void pm8001_ccb_free(struct pm8001_hba_info *pm8001_ha,
        pm8001_tag_free(pm8001_ha, tag);
 }
 
-static inline void
-pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
-                       struct sas_task *task, struct pm8001_ccb_info *ccb,
-                       u32 ccb_idx)
+static inline void pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha,
+                                            struct pm8001_ccb_info *ccb)
 {
-       pm8001_ccb_task_free(pm8001_ha, task, ccb, ccb_idx);
+       struct sas_task *task = ccb->task;
+
+       pm8001_ccb_task_free(pm8001_ha, ccb);
        smp_mb(); /*in order to force CPU ordering*/
        task->task_done(task);
 }

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index ce19aa3..b5e1aaa 100644 (file)
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2157,14 +2157,12 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                pm8001_dbg(pm8001_ha, FAIL,
                           "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
                if (t->slow_task)
                        complete(&t->slow_task->completion);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
-               mb();/* in order to force CPU ordering */
-               t->task_done(t);
+               pm8001_ccb_task_free_done(pm8001_ha, ccb);
        }
 }
 
@@ -2340,12 +2338,10 @@ static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha, void *piomb)
                pm8001_dbg(pm8001_ha, FAIL,
                           "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, event, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
-               mb();/* in order to force CPU ordering */
-               t->task_done(t);
+               pm8001_ccb_task_free_done(pm8001_ha, ccb);
        }
 }
 
@@ -2579,7 +2575,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                        ts->stat = SAS_QUEUE_FULL;
                        spin_unlock_irqrestore(&circularQ->oq_lock,
                                        circularQ->lock_flags);
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        spin_lock_irqsave(&circularQ->oq_lock,
                                        circularQ->lock_flags);
                        return;
@@ -2599,7 +2595,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                        ts->stat = SAS_QUEUE_FULL;
                        spin_unlock_irqrestore(&circularQ->oq_lock,
                                        circularQ->lock_flags);
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        spin_lock_irqsave(&circularQ->oq_lock,
                                        circularQ->lock_flags);
                        return;
@@ -2627,7 +2623,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                        ts->stat = SAS_QUEUE_FULL;
                        spin_unlock_irqrestore(&circularQ->oq_lock,
                                        circularQ->lock_flags);
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        spin_lock_irqsave(&circularQ->oq_lock,
                                        circularQ->lock_flags);
                        return;
@@ -2702,7 +2698,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                        ts->stat = SAS_QUEUE_FULL;
                        spin_unlock_irqrestore(&circularQ->oq_lock,
                                        circularQ->lock_flags);
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        spin_lock_irqsave(&circularQ->oq_lock,
                                        circularQ->lock_flags);
                        return;
@@ -2726,7 +2722,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                        ts->stat = SAS_QUEUE_FULL;
                        spin_unlock_irqrestore(&circularQ->oq_lock,
                                        circularQ->lock_flags);
-                       pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+                       pm8001_ccb_task_free_done(pm8001_ha, ccb);
                        spin_lock_irqsave(&circularQ->oq_lock,
                                        circularQ->lock_flags);
                        return;
@@ -2760,14 +2756,14 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha,
                pm8001_dbg(pm8001_ha, FAIL,
                           "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
                if (t->slow_task)
                        complete(&t->slow_task->completion);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
                spin_unlock_irqrestore(&circularQ->oq_lock,
                                circularQ->lock_flags);
-               pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free_done(pm8001_ha, ccb);
                spin_lock_irqsave(&circularQ->oq_lock,
                                circularQ->lock_flags);
        }
@@ -3171,10 +3167,10 @@ mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
                pm8001_dbg(pm8001_ha, FAIL,
                           "task 0x%p done with io_status 0x%x resp 0x%xstat 0x%x but aborted by upper layer!\n",
                           t, status, ts->resp, ts->stat);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
        } else {
                spin_unlock_irqrestore(&t->task_state_lock, flags);
-               pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
+               pm8001_ccb_task_free(pm8001_ha, ccb);
                mb();/* in order to force CPU ordering */
                t->task_done(t);
        }
@@ -4702,13 +4698,12 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
                                           "task 0x%p resp 0x%x  stat 0x%x but aborted by upper layer\n",
                                           task, ts->resp,
                                           ts->stat);
-                               pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
+                               pm8001_ccb_task_free(pm8001_ha, ccb);
                                return 0;
                        } else {
                                spin_unlock_irqrestore(&task->task_state_lock,
                                                        flags);
-                               pm8001_ccb_task_free_done(pm8001_ha, task,
-                                                               ccb, tag);
+                               pm8001_ccb_task_free_done(pm8001_ha, ccb);
                                atomic_dec(&pm8001_ha_dev->running_req);
                                return 0;
                        }