linux-kernel - Re: [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to PM_SUSPEND

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Date:   Mon, 7 Aug 2017 10:49:56 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Len Brown <lenb@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: Re: [PATCH 1/4] PM / s2idle: Rename PM_SUSPEND_FREEZE to
 PM_SUSPEND_S2IDLE

On Sat, Aug 05, 2017 at 02:56:43PM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> To make it clear that the symbol in question refers to
> suspend-to-idle, rename it from PM_SUSPEND_FREEZE to
> PM_SUSPEND_S2IDLE.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
>  drivers/acpi/sleep.c             |    2 -
>  drivers/regulator/of_regulator.c |    2 -
>  include/linux/suspend.h          |    4 +--
>  kernel/power/suspend.c           |   44 +++++++++++++++++++--------------------
>  kernel/power/suspend_test.c      |    4 +--
>  5 files changed, 28 insertions(+), 28 deletions(-)
> 
> Index: linux-pm/include/linux/suspend.h
> ===================================================================
> --- linux-pm.orig/include/linux/suspend.h
> +++ linux-pm/include/linux/suspend.h
> @@ -33,10 +33,10 @@ static inline void pm_restore_console(vo
>  typedef int __bitwise suspend_state_t;
>  
>  #define PM_SUSPEND_ON		((__force suspend_state_t) 0)
> -#define PM_SUSPEND_FREEZE	((__force suspend_state_t) 1)
> +#define PM_SUSPEND_S2IDLE	((__force suspend_state_t) 1)
>  #define PM_SUSPEND_STANDBY	((__force suspend_state_t) 2)
>  #define PM_SUSPEND_MEM		((__force suspend_state_t) 3)

I feel something like PM_SUSPEND_IDLE is more consistent with the
existing PM_SUSPEND_MEM. Also the proposed PM_SUSPEND_S2IDLE has
'SUSPEND' in it twice, so at the very least it should be
PM_SUSPEND_2IDLE :-)


> -#define PM_SUSPEND_MIN		PM_SUSPEND_FREEZE
> +#define PM_SUSPEND_MIN		PM_SUSPEND_S2IDLE
>  #define PM_SUSPEND_MAX		((__force suspend_state_t) 4)