linux-kernel - Re: [PATCH 2/2] gpio: sim: simplify code with cleanup helpers

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Message-ID: <ZN3mraFtdDhDM6Sy@smile.fi.intel.com>
Date:   Thu, 17 Aug 2023 12:21:49 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Kent Gibson <warthog618@...il.com>, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 2/2] gpio: sim: simplify code with cleanup helpers

On Wed, Aug 16, 2023 at 02:47:57PM +0200, Peter Zijlstra wrote:
> On Tue, Aug 15, 2023 at 10:31:17PM +0200, Peter Zijlstra wrote:
> 
> > > Moreover, maybe some macro that can predict the API call from the type of
> > > the parameter?
> > 
> > The whole type inferrence in C is not extensible. That is, you get to
> > write a single _Generic() statement, and every case that is included in
> > it will work, but the moment you use a new type, one that is not
> > included in your giant _Generic() statement, you're out of luck.
> 
> Additionally, spinlock_t, does that map to spinlock, spinlock_irq or
> spinlock_irqsave ?

Thank you for a good explanation.

-- 
With Best Regards,
Andy Shevchenko