diff options
| author | John Garry <john.garry@huawei.com> | 2019-08-05 21:48:07 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-08-07 22:13:15 -0400 |
| commit | 5f6c32d7ce576e9275ab2e9b21192f5cd5f24273 (patch) | |
| tree | 4f387ee2277e78c84c659671791023012b79fcc2 /drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | |
| parent | 1c003146c64bb3ae86f1a08d73a7e4551d7cd04a (diff) | |
scsi: hisi_sas: Drop SMP resp frame DMA mapping
The SMP frame response is written to the command table and not the SMP
response pointer from libsas, so don't bother DMA mapping (and unmapping)
the SMP response from libsas.
Suggested-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas_v3_hw.c')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index fcb2ef5f24b9..95a298d4e211 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2215,14 +2215,12 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) ts->stat = SAM_STAT_GOOD; - dma_unmap_sg(dev, &task->smp_task.smp_resp, 1, - DMA_FROM_DEVICE); dma_unmap_sg(dev, &task->smp_task.smp_req, 1, DMA_TO_DEVICE); memcpy(to + sg_resp->offset, hisi_sas_status_buf_addr_mem(slot) + sizeof(struct hisi_sas_err_record), - sg_dma_len(sg_resp)); + sg_resp->length); break; } case SAS_PROTOCOL_SATA: |