[PATCH v2 10/20] scsi: ufs: Remove dead code

Bart Van Assche
2021-11-19T19:58:31Z

Commit 7252a3603015 ("scsi: ufs: Avoid busy-waiting by eliminating tag
conflicts") guarantees that 'tag' is not in use by any SCSI command.
Remove the check that returns early if a conflict occurs.

Acked-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/scsi/ufs/ufshcd.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ff9532968ae7..fced4528ee90 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6730,11 +6730,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
tag = req->tag;
WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);

- if (unlikely(test_bit(tag, &hba->outstanding_reqs))) {
- err = -EBUSY;
- goto out;
- }
-
lrbp = &hba->lrb[tag];
WARN_ON(lrbp->cmd);
lrbp->cmd = NULL;
@@ -6802,8 +6797,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
(struct utp_upiu_req *)lrbp->ucd_rsp_ptr);

-out:
- blk_mq_free_request(req);
out_unlock:
up_read(&hba->clk_scaling_lock);
return err;