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Date:   Sun, 14 Feb 2021 11:47:57 +0100
From:   Bean Huo <huobean@...il.com>
To:     Adrian Hunter <adrian.hunter@...el.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Can Guo <cang@...eaurora.org>,
        Stanley Chu <stanley.chu@...iatek.com>
Subject: Re: [PATCH V2 1/4] scsi: ufs: Add exception event tracepoint

On Tue, 2021-02-09 at 08:24 +0200, Adrian Hunter wrote:
>   # cat /sys/kernel/debug/tracing/trace
>   # tracer: nop
>   #
>   # entries-in-buffer/entries-written: 3/3   #P:5
>   #
>   #                                _-----=> irqs-off
>   #                               / _----=> need-resched
>   #                              | / _---=> hardirq/softirq
>   #                              || / _--=> preempt-depth
>   #                              ||| /     delay
>   #           TASK-PID     CPU#  ||||   TIMESTAMP  FUNCTION
>   #              | |         |   ||||      |         |
>        kworker/2:2-173     [002] ....   731.486419:
> ufshcd_exception_event: 0000:00:12.5: status 0x0
>        kworker/2:2-173     [002] ....   732.608918:
> ufshcd_exception_event: 0000:00:12.5: status 0x4
>        kworker/2:2-173     [002] ....   732.609312:
> ufshcd_exception_event: 0000:00:12.5: status 0x4
> 
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Reviewed-by: Bean Huo <beanhuo@...ron.com>

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