Re: [PATCH 1/2] scsi: ufs: Clear ucd_rsp_ptr for UPIU requests once

From: Bart Van Assche
Date: Tue Jun 17 2025 - 16:35:48 EST


On 6/17/25 2:56 AM, Avri Altman wrote:
Previously, the response buffer (ucd_rsp_ptr) was cleared in multiple
UPIU preparation functions. Do it once.

Signed-off-by: Avri Altman <avri.altman@xxxxxxxxxxx>
---
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;
}

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>