From 38b789c914b1966d03466c047119def0b541fd17 Mon Sep 17 00:00:00 2001
From: Jonathan Hsu <jonathan.hsu@mediatek.com>
Date: Fri, 24 Sep 2021 16:58:48 +0800
Subject: [PATCH] scsi: ufs: Fix illegal offset in UPIU event trace
Git-commit: e8c2da7e329ce004fee748b921e4c765dc2fa338
Patch-mainline: v5.15-rc4
References: stable-5.14.10
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@vger.kernel.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jonathan Hsu <jonathan.hsu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/scsi/ufs/ufshcd.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index bfc13f646d7b..a3f5af088122 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -330,8 +330,7 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba,
static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
enum ufs_trace_str_t str_t)
{
- 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];
if (!trace_ufshcd_upiu_enabled())
return;
--
2.26.2