linux-kernel - Re: [PATCH] staging: vt6655: Add braces to macro parameter 'iobase'

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Message-ID: <Y94PXceerdFTBg5e@kroah.com>
Date:   Sat, 4 Feb 2023 08:55:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Guru Mehar Rachaputi <gurumeharrachaputi@...il.com>
Cc:     Forest Bond <forest@...ttletooquiet.net>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: vt6655: Add braces to macro parameter 'iobase'

On Sat, Feb 04, 2023 at 04:50:41AM +0100, Guru Mehar Rachaputi wrote:
> This patch is to fix checkpatch warning: "Macro argument 'iobase' may be better
> as '(iobase)' to avoid precedence issues.
> 
> Signed-off-by: Guru Mehar Rachaputi <gurumeharrachaputi@...il.com>
> ---
>  drivers/staging/vt6655/mac.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h
> index acf931c3f5fd..a33af2852227 100644
> --- a/drivers/staging/vt6655/mac.h
> +++ b/drivers/staging/vt6655/mac.h
> @@ -537,9 +537,9 @@
>  
>  /*---------------------  Export Macros ------------------------------*/
>  
> -#define VT6655_MAC_SELECT_PAGE0(iobase) iowrite8(0, iobase + MAC_REG_PAGE1SEL)
> +#define VT6655_MAC_SELECT_PAGE0(iobase) iowrite8(0, (iobase) + MAC_REG_PAGE1SEL)

This change really doesn't make much sense, right?  How about turning
these into an inline function instead?  That would be the correct thing
to do overall, right?

thanks,

greg k-h