linux-kernel - [PATCH 5/5] scsi: hisi_sas: Increase debugfs_dump

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Date:   Tue, 24 Aug 2021 18:01:00 +0800
From:   John Garry <john.garry@...wei.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>, Luo Jiaxing <luojiaxing@...wei.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH 5/5] scsi: hisi_sas: Increase debugfs_dump_index after dump is completed

From: Luo Jiaxing <luojiaxing@...wei.com>

The hisi_hba debugfs_dump_index member should increased after a dump insertion
completed, and not before it has started, so fix the code to do so.

Signed-off-by: Luo Jiaxing <luojiaxing@...wei.com>
Signed-off-by: John Garry <john.garry@...wei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index cbc6c2d86745..f4517f3eb922 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -3688,7 +3688,6 @@ static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba)
 
 	do_div(timestamp, NSEC_PER_MSEC);
 	hisi_hba->debugfs_timestamp[debugfs_dump_index] = timestamp;
-	hisi_hba->debugfs_dump_index++;
 
 	debugfs_snapshot_prepare_v3_hw(hisi_hba);
 
@@ -3704,6 +3703,7 @@ static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba)
 	debugfs_create_files_v3_hw(hisi_hba);
 
 	debugfs_snapshot_restore_v3_hw(hisi_hba);
+	hisi_hba->debugfs_dump_index++;
 }
 
 static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file,
-- 
2.26.2