Re: [PATCH v2 09/13] pinctrl: meson: Rename REG_* to MREG_*

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Neil Armstrong <narmstrong@baylibre.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	Qianggui Song <qianggui.song@amlogic.com>,
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	Bartosz Golaszewski <brgl@bgdev.pl>,
	Philipp Zabel <p.zabel@pengutronix.de>
Subject: Re: [PATCH v2 09/13] pinctrl: meson: Rename REG_* to MREG_*
Date: Wed, 30 Mar 2022 18:51:20 +0300	[thread overview]
Message-ID: <YkR8eDT6fS8uRpOT@smile.fi.intel.com> (raw)
In-Reply-To: <6812bb31-5d2b-4737-c2ad-8727d105847d@baylibre.com>

On Wed, Mar 30, 2022 at 05:22:56PM +0200, Neil Armstrong wrote:
> On 30/03/2022 11:18, Andy Shevchenko wrote:

...

> > > > > > What error do you hit ?
> > > > > 
> > > > > arch/x86/include/asm/arch_hweight.h:9:17: error: expected identifier before string constant
> > > > > 9 | #define REG_OUT "a"
> > > > >     |                 ^~~
> > > > 
> > > > Perhaps REG_{OUT,IN} in arch/x86/include/asm/arch_hweight.h should be
> > > > renamed instead, as this is a generic header file that can be included
> > > > anywhere, while the REG_{OUT,IN} definitions are only used locally,
> > > > in the header file?
> > > 
> > > Even better, those REG_OUT/REG_IN should be undefined at the end of the header since only
> > > used in the headers inline functions:
> > > ==============><==================================
> > > diff --git a/arch/x86/include/asm/arch_hweight.h b/arch/x86/include/asm/arch_hweight.h
> > > index ba88edd0d58b..139a4b0a2a14 100644
> > > --- a/arch/x86/include/asm/arch_hweight.h
> > > +++ b/arch/x86/include/asm/arch_hweight.h
> > > @@ -52,4 +52,7 @@ static __always_inline unsigned long __arch_hweight64(__u64 w)
> > >   }
> > >   #endif /* CONFIG_X86_32 */
> > > 
> > > +#undef REG_IN
> > > +#undef REG_OUT
> > > +
> > >   #endif
> > > ==============><==================================
> > 
> > Can you submit a formal patch, please?
> 
> I'll submit it separately

Sure!

> > And I think it would be good to have my patch as well, so we do not depend on
> > the fate of the other one.
> 
> Yes sure

Thanks for acknowledging and review!

-- 
With Best Regards,
Andy Shevchenko

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