From: Po-Wen Kao <powen.kao@mediatek.com>
Date: Tue, 12 Apr 2022 15:31:28 +0800
Subject: [PATCH] scsi: ufs: core: Remove redundant HPB unmap
Git-commit: 25a0bf213b8a563c5244326ae992456e8c9bb373
Patch-mainline: v5.19-rc1
References: jsc#PED-1183 jsc#PED-818

Since the HPB mapping is already reset in ufshpb_init() by setting flag
QUERY_FLAG_IDN_HPB_RESET, there is no need doing so again in
ufshpb_hpb_lu_prepared().

This also resolves the issue where HPB WRITE BUFFER is issued before UAC is
cleared.

Link: https://lore.kernel.org/r/20220412073131.10644-1-powen.kao@mediatek.com
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/scsi/ufs/ufshpb.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index b2bec19022cd..c8bab2eed43e 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -931,11 +931,6 @@ static int ufshpb_issue_umap_single_req(struct ufshpb_lu *hpb,
 	return ufshpb_issue_umap_req(hpb, rgn, true);
 }
 
-static int ufshpb_issue_umap_all_req(struct ufshpb_lu *hpb)
-{
-	return ufshpb_issue_umap_req(hpb, NULL, false);
-}
-
 static void __ufshpb_evict_region(struct ufshpb_lu *hpb,
 				 struct ufshpb_region *rgn)
 {
@@ -2456,8 +2451,6 @@ static void ufshpb_hpb_lu_prepared(struct ufs_hba *hba)
 			ufshpb_set_state(hpb, HPB_PRESENT);
 			if ((hpb->lu_pinned_end - hpb->lu_pinned_start) > 0)
 				queue_work(ufshpb_wq, &hpb->map_work);
-			if (!hpb->is_hcm)
-				ufshpb_issue_umap_all_req(hpb);
 		} else {
 			dev_err(hba->dev, "destroy HPB lu %d\n", hpb->lun);
 			ufshpb_destroy_lu(hba, sdev);
-- 
2.35.3