[PATCH 2/6] scsi: hisi_sas: Use sas_task_find_rq()

John Garry
2022-09-28T12:34:03Z

Use sas_task_find_rq() to lookup the request per task for its driver tag.

Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 26 ++++++++------------------
1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 4c37ae9eb6b6..1011dffed51f 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -177,13 +177,13 @@ static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx)
}

static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba,
- struct scsi_cmnd *scsi_cmnd)
+ struct request *rq)
{
int index;
void *bitmap = hisi_hba->slot_index_tags;

- if (scsi_cmnd)
- return scsi_cmd_to_rq(scsi_cmnd)->tag;
+ if (rq)
+ return rq->tag;

spin_lock(&hisi_hba->lock);
index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count,
@@ -461,11 +461,11 @@ static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
struct asd_sas_port *sas_port = device->port;
struct hisi_sas_device *sas_dev = device->lldd_dev;
bool internal_abort = sas_is_internal_abort(task);
- struct scsi_cmnd *scmd = NULL;
struct hisi_sas_dq *dq = NULL;
struct hisi_sas_port *port;
struct hisi_hba *hisi_hba;
struct hisi_sas_slot *slot;
+ struct request *rq = NULL;
struct device *dev;
int rc;

@@ -520,22 +520,12 @@ static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
return -ECOMM;
}

- if (task->uldd_task) {
- struct ata_queued_cmd *qc;
-
- if (dev_is_sata(device)) {
- qc = task->uldd_task;
- scmd = qc->scsicmd;
- } else {
- scmd = task->uldd_task;
- }
- }
-
- if (scmd) {
+ rq = sas_task_find_rq(task);
+ if (rq) {
unsigned int dq_index;
u32 blk_tag;

- blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
+ blk_tag = blk_mq_unique_tag(rq);
dq_index = blk_mq_unique_tag_to_hwq(blk_tag);
dq = &hisi_hba->dq[dq_index];
} else {
@@ -580,7 +570,7 @@ static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
if (!internal_abort && hisi_hba->hw->slot_index_alloc)
rc = hisi_hba->hw->slot_index_alloc(hisi_hba, device);
else
- rc = hisi_sas_slot_index_alloc(hisi_hba, scmd);
+ rc = hisi_sas_slot_index_alloc(hisi_hba, rq);

if (rc < 0)
goto err_out_dif_dma_unmap;
--
2.35.3