linux-kernel - [PATCH v3 3/6] scsi: ufs: Don't call trace_ufshcd

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Date:   Mon, 14 Dec 2020 21:20:11 +0100
From:   Bean Huo <huobean@...il.com>
To:     alim.akhtar@...sung.com, avri.altman@....com,
        asutoshd@...eaurora.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        beanhuo@...ron.com, bvanassche@....org, tomas.winkler@...el.com,
        cang@...eaurora.org, rostedt@...dmis.org, joe@...ches.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/6] scsi: ufs: Don't call trace_ufshcd_upiu() in case trace poit is disabled

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

Don't call trace_ufshcd_upiu() in case ufshba_upiu trace poit is not enabled.

Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Bean Huo <beanhuo@...ron.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 66babbd8bf32..f4a071d12542 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -309,6 +309,9 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb);
 }
 
@@ -317,6 +320,9 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->qr);
 }
 
@@ -326,6 +332,9 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 	int off = (int)tag - hba->nutrs;
 	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off];
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
 			&descp->input_param1);
 }
-- 
2.17.1