linux-kernel - [PATCH -next] scsi: lpfc: Use memset_startat() helper in lpfc_nvmet_xmt_fcp_op

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Date:   Mon, 13 Jun 2022 10:10:57 +0800
From:   Xiu Jianfeng <xiujianfeng@...wei.com>
To:     <james.smart@...adcom.com>, <dick.kennedy@...adcom.com>,
        <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] scsi: lpfc: Use memset_startat() helper in lpfc_nvmet_xmt_fcp_op_cmp

Use memset_startat() helper to simply the code, no functional change in
this patch.

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 drivers/scsi/lpfc/lpfc_nvmet.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index c0ee0b39075d..c3cb7e8a2a7c 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -722,7 +722,7 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 	struct lpfc_nvmet_tgtport *tgtp;
 	struct nvmefc_tgt_fcp_req *rsp;
 	struct lpfc_async_xchg_ctx *ctxp;
-	uint32_t status, result, op, start_clean, logerr;
+	uint32_t status, result, op, logerr;
 	struct lpfc_wcqe_complete *wcqe = &rspwqe->wcqe_cmpl;
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	int id;
@@ -820,9 +820,7 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 		/* lpfc_nvmet_xmt_fcp_release() will recycle the context */
 	} else {
 		ctxp->entry_cnt++;
-		start_clean = offsetof(struct lpfc_iocbq, cmd_flag);
-		memset(((char *)cmdwqe) + start_clean, 0,
-		       (sizeof(struct lpfc_iocbq) - start_clean));
+		memset_startat(cmdwqe, 0, cmd_flag);
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 		if (ctxp->ts_cmd_nvme) {
 			ctxp->ts_isr_data = cmdwqe->isr_timestamp;
-- 
2.17.1