linux-kernel - [PATCH AUTOSEL 5.15 18/68] scsi: ufs: ufshpb: Fix warning in ufshpb_set_hpb_read_to

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Date:   Tue, 30 Nov 2021 09:46:14 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Bean Huo <beanhuo@...ron.com>, kernel test robot <lkp@...el.com>,
        Bart Van Assche <bvanassche@....org>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>, jejb@...ux.ibm.com,
        avri.altman@....com, daejun7.park@...sung.com,
        keosung.park@...sung.com, linux-scsi@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 18/68] scsi: ufs: ufshpb: Fix warning in ufshpb_set_hpb_read_to_upiu()

From: Bean Huo <beanhuo@...ron.com>

[ Upstream commit 73185a13773af10264f9d8ee70386c01c849ff2c ]

Fix the following sparse warnings in ufshpb_set_hpb_read_to_upiu():

sparse warnings: (new ones prefixed by >>)
drivers/scsi/ufs/ufshpb.c:335:27: sparse: sparse: cast from restricted __be64
drivers/scsi/ufs/ufshpb.c:335:25: sparse: expected restricted __be64 [usertype] ppn_tmp
drivers/scsi/ufs/ufshpb.c:335:25: sparse: got unsigned long long [usertype]

Link: https://lore.kernel.org/r/20211111222452.384089-1-huobean@gmail.com
Reported-by: kernel test robot <lkp@...el.com>
Reviewed-by: Bart Van Assche <bvanassche@....org>
Signed-off-by: Bean Huo <beanhuo@...ron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/ufs/ufshpb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index a86d0cc50de21..5c8bb6dcc559b 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -331,7 +331,7 @@ ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
 	cdb[0] = UFSHPB_READ;
 
 	if (hba->dev_quirks & UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ)
-		ppn_tmp = swab64(ppn);
+		ppn_tmp = (__force __be64)swab64((__force u64)ppn);
 
 	/* ppn value is stored as big-endian in the host memory */
 	memcpy(&cdb[6], &ppn_tmp, sizeof(__be64));
-- 
2.33.0