linux-kernel - Re: [PATCH] drivers/tty/nozomi.c: rename CONFIG

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Message-ID: <552A9A52.7070706@hurleysoftware.com>
Date:	Sun, 12 Apr 2015 12:16:18 -0400
From:	Peter Hurley <peter@...leysoftware.com>
To:	Valentin Rothberg <valentinrothberg@...il.com>,
	gregkh@...uxfoundation.org, jslaby@...e.cz,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/tty/nozomi.c: rename CONFIG_MAGIC

Hi Valentin,

On 04/12/2015 10:56 AM, Valentin Rothberg wrote:
> The CONFIG_ prefix is reserved for Kconfig options in Make and CPP
> syntax.  CONFIG_MAGIC is a file local CPP identifier so strip the prefix
> to apply to Kconfig's naming convention.
> 
> Signed-off-by: Valentin Rothberg <valentinrothberg@...il.com>
> ---
> I found this issue with ./scripts/checkkconfigsymbols.py
> ---
>  drivers/tty/nozomi.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
> index 74885af8c7bd..4a4775e81963 100644
> --- a/drivers/tty/nozomi.c
> +++ b/drivers/tty/nozomi.c
> @@ -140,7 +140,7 @@ static int debug;
>  #define R_FCR		0x0000	/* Flow Control Register */
>  #define R_IER		0x0004	/* Interrupt Enable Register */
>  
> -#define CONFIG_MAGIC	0xEFEFFEFE
> +#define MAGIC			0xEFEFFEFE
           ^^^^^
This is too general for a preprocessor symbol; how about
NOZOMI_CONFIG_MAGIC?

Regards,
Peter Hurley

>  #define TOGGLE_VALID	0x0000
>  
>  /* Definition of interrupt tokens */
> @@ -660,9 +660,9 @@ static int nozomi_read_config_table(struct nozomi *dc)
>  	read_mem32((u32 *) &dc->config_table, dc->base_addr + 0,
>  						sizeof(struct config_table));
>  
> -	if (dc->config_table.signature != CONFIG_MAGIC) {
> +	if (dc->config_table.signature != MAGIC) {
>  		dev_err(&dc->pdev->dev, "ConfigTable Bad! 0x%08X != 0x%08X\n",
> -			dc->config_table.signature, CONFIG_MAGIC);
> +			dc->config_table.signature, MAGIC);
>  		return 0;
>  	}
>  
> 

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