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Message-Id: <20211004125030.306636302@linuxfoundation.org>
Date:   Mon,  4 Oct 2021 14:52:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Stanley Chu <stanley.chu@...iatek.com>,
        Bart Van Assche <bvanassche@....org>,
        Jonathan Hsu <jonathan.hsu@...iatek.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 5.4 09/56] scsi: ufs: Fix illegal offset in UPIU event trace

From: Jonathan Hsu <jonathan.hsu@...iatek.com>

commit e8c2da7e329ce004fee748b921e4c765dc2fa338 upstream.

Fix incorrect index for UTMRD reference in ufshcd_add_tm_upiu_trace().

Link: https://lore.kernel.org/r/20210924085848.25500-1-jonathan.hsu@mediatek.com
Fixes: 4b42d557a8ad ("scsi: ufs: core: Fix wrong Task Tag used in task management request UPIUs")
Cc: stable@...r.kernel.org
Reviewed-by: Stanley Chu <stanley.chu@...iatek.com>
Reviewed-by: Bart Van Assche <bvanassche@....org>
Signed-off-by: Jonathan Hsu <jonathan.hsu@...iatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/scsi/ufs/ufshcd.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -320,8 +320,7 @@ static void ufshcd_add_query_upiu_trace(
 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 		const char *str)
 {
-	int off = (int)tag - hba->nutrs;
-	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off];
+	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag];
 
 	trace_ufshcd_upiu(dev_name(hba->dev), str, &descp->req_header,
 			&descp->input_param1);


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