linux-kernel - Re: [PATCH 01/12] PM / core: Add NEVER_SKIP and SMART

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Date:   Wed, 18 Oct 2017 08:56:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Alan Stern <stern@...land.harvard.edu>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux Documentation <linux-doc@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kevin Hilman <khilman@...nel.org>,
        Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org,
        Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH 01/12] PM / core: Add NEVER_SKIP and SMART_PREPARE driver
 flags

On Tue, Oct 17, 2017 at 05:26:20PM +0200, Rafael J. Wysocki wrote:
> On Tuesday, October 17, 2017 9:15:43 AM CEST Greg Kroah-Hartman wrote:
> > On Tue, Oct 17, 2017 at 12:05:11AM +0200, Rafael J. Wysocki wrote:
> > > On Monday, October 16, 2017 8:28:52 AM CEST Greg Kroah-Hartman wrote:
> > > > On Mon, Oct 16, 2017 at 03:29:02AM +0200, Rafael J. Wysocki wrote:
> > > > >  struct dev_pm_info {
> > > > >  	pm_message_t		power_state;
> > > > >  	unsigned int		can_wakeup:1;
> > > > > @@ -561,6 +580,7 @@ struct dev_pm_info {
> > > > >  	bool			is_late_suspended:1;
> > > > >  	bool			early_init:1;	/* Owned by the PM core */
> > > > >  	bool			direct_complete:1;	/* Owned by the PM core */
> > > > > +	unsigned int		driver_flags;
> > > > 
> > > > Minor nit, u32 or u64?
> > > 
> > > u32 I think, will update.
> > > 
> > > BTW, there's a mess in this struct overall and I'd like all of the bit fileds
> > > to be the same type (and that shouldn't be bool IMO :-)).
> > > 
> > > Do you prefer u32 or unsinged int?
> > 
> > I always prefer an explicit size for variables, unless it's a "generic
> > loop" type thing.  So I'll always say "u32" for this.
> > 
> > And cleaning up the structure would be great, it's grown over time in
> > odd ways as you point out.
> 
> OK, but that will be separate from this work.

Of course :)