linux-kernel - Re: [PATCH] power: suspend: Replace dpm

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Date:   Tue, 20 Oct 2020 13:08:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Joseph Jang <josephjang@...gle.com>
Cc:     "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        jonglin@...gle.com, woodylin@...gle.com, markcheng@...gle.com
Subject: Re: [PATCH] power: suspend: Replace dpm_watchdog by sleep timer

On Tue, Oct 20, 2020 at 05:56:11PM +0800, Joseph Jang wrote:
> Since dpm_watchdog just cover device power management,
> we proposed sleep timer to cover not only device power management
> issues, but also core power management hand issue.
> 
> Add sleep timer and timeout handler to prevent device stuck during suspend/
> resume process. The timeout handler will dump disk sleep task at first
> round timeout and trigger kernel panic at second round timeout.
> The default timer for each round is defined in
> CONFIG_PM_SLEEP_TIMER_TIMEOUT.
> 
> Signed-off-by: Joseph Jang <josephjang@...gle.com>
> ---
>  drivers/base/power/main.c    | 69 ---------------------------
>  include/linux/console.h      |  1 +
>  kernel/power/Kconfig         | 27 ++++++-----
>  kernel/power/suspend.c       | 19 ++++++++
>  kernel/power/suspend_timer.h | 90 ++++++++++++++++++++++++++++++++++++
>  kernel/printk/printk.c       |  5 ++
>  6 files changed, 128 insertions(+), 83 deletions(-)
>  create mode 100644 kernel/power/suspend_timer.h

Is this different from your previous patches?

If so, you need to properly version them, and put below the --- line
what changed.  Otherwise it is impossible to review.

Please fix up.

thanks,

greg k-h