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Date:   Thu, 14 Dec 2023 18:41:40 +0200
From:   Andy Shevchenko <andy@kernel.org>
To:     Kent Gibson <warthog618@gmail.com>
Cc:     linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
        brgl@bgdev.pl, linus.walleij@linaro.org
Subject: Re: [PATCH v2 2/5] gpiolib: cdev: relocate debounce_period_us from
 struct gpio_desc
Message-ID: <ZXswRCsT0OYwHe3N@smile.fi.intel.com>
References: <20231214095814.132400-1-warthog618@gmail.com>
 <20231214095814.132400-3-warthog618@gmail.com>
 <ZXsZJ9z7iln8uMf8@smile.fi.intel.com>
 <ZXsajZoQRw7HgHl1@smile.fi.intel.com>
 <ZXsp8QjxsUMPlZIR@rigel>
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In-Reply-To: <ZXsp8QjxsUMPlZIR@rigel>
Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
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On Fri, Dec 15, 2023 at 12:14:41AM +0800, Kent Gibson wrote:
> On Thu, Dec 14, 2023 at 05:09:01PM +0200, Andy Shevchenko wrote:
> > On Thu, Dec 14, 2023 at 05:03:03PM +0200, Andy Shevchenko wrote:
> > > On Thu, Dec 14, 2023 at 05:58:11PM +0800, Kent Gibson wrote:

...

> > > > +static void supinfo_init(void)
> > > > +{
> > > > +	supinfo.tree = RB_ROOT;
> > > > +	spin_lock_init(&supinfo.lock);
> > > > +}
> > >
> > > Can it be done statically?
> > >
> > > supinfo = {
> > > 	.tree = RB_ROOT,
> > > 	.lock = __SPIN_LOCK_UNLOCKED(supinfo.lock),
> >
> > I even checked the current tree, we have 32 users of this pattern in drivers/.
> 
> Ah, that is what you meant.  Yeah sure can - the supinfo_init() is
> another hangover from when I was trying to create the supinfo per chip,
> but now it is a global a static initialiser makes sense.

Yep, the DEFINE_MUTEX() / DEFINE_SPINLOCK() / etc looks better naturally
than above.

> And I still haven't received the email you quote there.

:-( I'm not sure we will get it, it most likely that I removed it already
and it has disappeared due to problems with email server...

-- 
With Best Regards,
Andy Shevchenko