linux-kernel - Re: [PATCH] PM: Prevent dpm_prepare() from returning errors unnecessarily

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Message-ID: <Pine.LNX.4.44L0.1012021038040.1921-100000@iolanthe.rowland.org>
Date:	Thu, 2 Dec 2010 10:38:51 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ming Lei <tom.leiming@...il.com>
Subject: Re: [PATCH] PM: Prevent dpm_prepare() from returning errors
 unnecessarily

On Thu, 2 Dec 2010, Rafael J. Wysocki wrote:

> OK, so please let me know what you think of the appended patch (on top of the
> previous one).
> 
> Thanks,
> Rafael
> Index: linux-2.6/include/linux/suspend.h
> ===================================================================
> --- linux-2.6.orig/include/linux/suspend.h
> +++ linux-2.6/include/linux/suspend.h
> @@ -292,7 +292,7 @@ extern int unregister_pm_notifier(struct
>  /* drivers/base/power/wakeup.c */
>  extern bool events_check_enabled;
>  
> -extern bool pm_check_wakeup_events(void);
> +extern bool pm_wakeup_pending(void);
>  extern bool pm_get_wakeup_count(unsigned int *count);
>  extern bool pm_save_wakeup_count(unsigned int count);
>  #else /* !CONFIG_PM_SLEEP */
> @@ -309,7 +309,7 @@ static inline int unregister_pm_notifier
>  
>  #define pm_notifier(fn, pri)	do { (void)(fn); } while (0)
>  
> -static inline bool pm_check_wakeup_events(void) { return true; }
> +static inline bool pm_wakeup_pending(void) { return true; }

Shouldn't this return false?

Alan Stern

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