From: Darren Hart <dvhart@infradead.org>
To: "Michał Kępień" <kernel@kempniu.pl>
Cc: Jonathan Woithe <jwoithe@just42.net>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Andy Shevchenko <andy@infradead.org>,
Platform Driver <platform-driver-x86@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/7] platform/x86: fujitsu-laptop: Define constants for FUNC operations
Date: Mon, 5 Mar 2018 15:16:50 -0800 [thread overview]
Message-ID: <20180305231650.GA25693@fury> (raw)
In-Reply-To: <20180304194426.GA1428@kmp-mobile.hq.kempniu.pl>
On Sun, Mar 04, 2018 at 08:44:26PM +0100, Michał Kępień wrote:
> > On Wed, Feb 28, 2018 at 06:08:52PM +0200, Andy Shevchenko wrote:
> > > On Tue, Feb 27, 2018 at 11:15 PM, Micha?? K??pie?? <kernel@kempniu.pl> wrote:
> > > > Various functions exposed by the firmware through the FUNC interface
> > > > tend to use a consistent set of integers for denoting the type of
> > > > operation to be performed for a specified feature. Use named constants
> > > > instead of integers in each call_fext_func() invocation in order to more
> > > > clearly convey the intent of each call.
> > > >
> > > > Note that FUNC_FLAGS is a bit peculiar:
> > >
> > > > +/* FUNC interface - operations */
> > > > +#define OP_GET BIT(1)
> > > > +#define OP_GET_CAPS 0
> > > > +#define OP_GET_EVENTS BIT(0)
> > > > +#define OP_GET_EXT BIT(2)
> > > > +#define OP_SET BIT(0)
> > > > +#define OP_SET_EXT (BIT(2) | BIT(0))
> > >
> > > Hmm... this looks unordered a bit.
> >
> > It seems to be ordered alphabetically on the identifier. Andy, is it
> > preferred to order defines like this based on resolved numeric order?
>
> Just to expand on what Jonathan wrote above: if you take a peek at the
> end result of the patch series, you will notice a pattern: constants in
> each section are ordered alphabetically by their name. I wanted all
> sections to be consistently ordered. If you would rather have me order
> things by the bit index, sure, no problem, just please note that the
> order above is not accidental.
Hrm. In my experience it is more typical to order by value (bit), that's a
little less obvious when using the BIT()|BIT() macros though. So long as it's
consistent, I think that's what matters most.
--
Darren Hart
VMware Open Source Technology Center
next prev parent reply other threads:[~2018-03-05 23:16 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-27 21:15 [PATCH 0/7] fujitsu-laptop: Consistent naming of constants Michał Kępień
2018-02-27 21:15 ` [PATCH 1/7] platform/x86: fujitsu-laptop: Define constants for FUNC operations Michał Kępień
2018-02-28 16:08 ` Andy Shevchenko
2018-03-04 5:08 ` Jonathan Woithe
2018-03-04 19:44 ` Michał Kępień
2018-03-04 22:49 ` Jonathan Woithe
2018-03-05 23:16 ` Darren Hart [this message]
2018-03-06 9:37 ` Andy Shevchenko
2018-03-06 20:59 ` Michał Kępień
2018-03-07 12:34 ` Andy Shevchenko
2018-03-10 20:10 ` Michał Kępień
2018-03-12 9:27 ` Andy Shevchenko
2018-02-27 21:15 ` [PATCH 2/7] platform/x86: fujitsu-laptop: Define constants for FUNC features Michał Kępień
2018-02-27 21:15 ` [PATCH 3/7] platform/x86: fujitsu-laptop: Define constants for FUNC feature states Michał Kępień
2018-02-27 21:15 ` [PATCH 4/7] platform/x86: fujitsu-laptop: Rename constants defining hotkey codes Michał Kępień
2018-02-27 21:15 ` [PATCH 5/7] platform/x86: fujitsu-laptop: Tweak how constants are commented and laid out Michał Kępień
2018-02-27 21:15 ` [PATCH 6/7] platform/x86: fujitsu-laptop: More accurately represent the hotkey ring buffer managed by firmware Michał Kępień
2018-02-28 16:13 ` Andy Shevchenko
2018-03-04 19:57 ` Michał Kępień
2018-02-27 21:15 ` [PATCH 7/7] platform/x86: fujitsu-laptop: Introduce fext_*() helper functions Michał Kępień
2018-03-04 5:37 ` [PATCH 0/7] fujitsu-laptop: Consistent naming of constants Jonathan Woithe
2018-03-21 23:25 ` Darren Hart
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