linux-kernel - [PATCH 1/2] scsi: ufs: Clear ucd_rsp

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Message-Id: <20250617095611.89229-2-avri.altman@sandisk.com>
Date: Tue, 17 Jun 2025 12:56:10 +0300
From: Avri Altman <avri.altman@...disk.com>
To: "Martin K . Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bart Van Assche <bvanassche@....org>,
	Avri Altman <avri.altman@...disk.com>
Subject: [PATCH 1/2] scsi: ufs: Clear ucd_rsp_ptr for UPIU requests once

Previously, the response buffer (ucd_rsp_ptr) was cleared in multiple
UPIU preparation functions. Do it once.

Signed-off-by: Avri Altman <avri.altman@...disk.com>
---
 drivers/ufs/core/ufshcd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 0a702356a715..c2048aca09fc 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -2826,8 +2826,6 @@ static void ufshcd_prepare_utp_query_req_upiu(struct ufs_hba *hba,
 	/* Copy the Descriptor */
 	if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC)
 		memcpy(ucd_req_ptr + 1, query->descriptor, len);
-
-	memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp));
 }
 
 static inline void ufshcd_prepare_utp_nop_upiu(struct ufshcd_lrb *lrbp)
@@ -2840,8 +2838,6 @@ static inline void ufshcd_prepare_utp_nop_upiu(struct ufshcd_lrb *lrbp)
 		.transaction_code = UPIU_TRANSACTION_NOP_OUT,
 		.task_tag = lrbp->task_tag,
 	};
-
-	memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp));
 }
 
 /**
@@ -2867,6 +2863,8 @@ static int ufshcd_compose_devman_upiu(struct ufs_hba *hba,
 	else
 		ret = -EINVAL;
 
+	memset(lrbp->ucd_rsp_ptr, 0, sizeof(struct utp_upiu_rsp));
+
 	return ret;
 }
 
-- 
2.25.1