scsi: ufs: core: Remove redundant HPB unmap

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>

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index b2bec19..c8bab2e 100644 (file)
--- 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);