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

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Wed, Mar 30, 2022 at 11:09:11AM +0200, Neil Armstrong wrote:
> On 30/03/2022 10:54, Geert Uytterhoeven wrote:
> > On Tue, Mar 29, 2022 at 6:47 PM Andy Shevchenko
> > <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> > > On Tue, Mar 29, 2022 at 06:13:19PM +0200, Neil Armstrong wrote:
> > > > On 29/03/2022 17:29, 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?


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.

-- 
With Best Regards,
Andy Shevchenko