diff options
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_main.c | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 764e859d0106..bd62e441f947 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -220,9 +220,10 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, if (!sas_protocol_ata(task->task_proto)) { if (slot->n_elem) - dma_unmap_sg(dev, task->scatter, - task->num_scatter, - task->data_dir); + if (task->task_proto & SAS_PROTOCOL_SSP) + dma_unmap_sg(dev, task->scatter, + task->num_scatter, + task->data_dir); if (slot->n_elem_dif) { struct sas_ssp_task *ssp_task = &task->ssp_task; struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; @@ -269,28 +270,23 @@ static void hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, } static void hisi_sas_dma_unmap(struct hisi_hba *hisi_hba, - struct sas_task *task, int n_elem, - int n_elem_req) + struct sas_task *task, int n_elem) { struct device *dev = hisi_hba->dev; - if (!sas_protocol_ata(task->task_proto)) { + if (!sas_protocol_ata(task->task_proto) && n_elem) { if (task->num_scatter) { - if (n_elem) - dma_unmap_sg(dev, task->scatter, - task->num_scatter, - task->data_dir); + dma_unmap_sg(dev, task->scatter, task->num_scatter, + task->data_dir); } else if (task->task_proto & SAS_PROTOCOL_SMP) { - if (n_elem_req) - dma_unmap_sg(dev, &task->smp_task.smp_req, - 1, DMA_TO_DEVICE); + dma_unmap_sg(dev, &task->smp_task.smp_req, + 1, DMA_TO_DEVICE); } } } static int hisi_sas_dma_map(struct hisi_hba *hisi_hba, - struct sas_task *task, int *n_elem, - int *n_elem_req) + struct sas_task *task, int *n_elem) { struct device *dev = hisi_hba->dev; int rc; @@ -308,9 +304,9 @@ static int hisi_sas_dma_map(struct hisi_hba *hisi_hba, goto prep_out; } } else if (task->task_proto & SAS_PROTOCOL_SMP) { - *n_elem_req = dma_map_sg(dev, &task->smp_task.smp_req, - 1, DMA_TO_DEVICE); - if (!*n_elem_req) { + *n_elem = dma_map_sg(dev, &task->smp_task.smp_req, + 1, DMA_TO_DEVICE); + if (!*n_elem) { rc = -ENOMEM; goto prep_out; } @@ -332,8 +328,7 @@ static int hisi_sas_dma_map(struct hisi_hba *hisi_hba, err_out_dma_unmap: /* It would be better to call dma_unmap_sg() here, but it's messy */ - hisi_sas_dma_unmap(hisi_hba, task, *n_elem, - *n_elem_req); + hisi_sas_dma_unmap(hisi_hba, task, *n_elem); prep_out: return rc; } @@ -457,7 +452,7 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba, static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) { - int n_elem = 0, n_elem_dif = 0, n_elem_req = 0; + int n_elem = 0, n_elem_dif = 0; struct domain_device *device = task->dev; struct asd_sas_port *sas_port = device->port; struct hisi_sas_device *sas_dev = device->lldd_dev; @@ -568,8 +563,7 @@ static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) return -EINVAL; } - rc = hisi_sas_dma_map(hisi_hba, task, &n_elem, - &n_elem_req); + rc = hisi_sas_dma_map(hisi_hba, task, &n_elem); if (rc < 0) goto prep_out; @@ -605,8 +599,7 @@ err_out_dif_dma_unmap: if (!sas_protocol_ata(task->task_proto)) hisi_sas_dif_dma_unmap(hisi_hba, task, n_elem_dif); err_out_dma_unmap: - hisi_sas_dma_unmap(hisi_hba, task, n_elem, - n_elem_req); + hisi_sas_dma_unmap(hisi_hba, task, n_elem); prep_out: dev_err(dev, "task exec: failed[%d]!\n", rc); return rc; |