linux-kernel - Re: [PATCH] regmap: Fix build failure with CONFIG_DEBUG

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Date:	Tue, 22 Nov 2011 10:21:22 +0100
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
CC:	linux-kernel@...r.kernel.org, kernel@...gutronix.de,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH] regmap: Fix build failure with CONFIG_DEBUG_FS=n

On 11/22/2011 09:24 AM, Uwe Kleine-König wrote:
> This fixes:
> 
> 	drivers/base/regmap/regcache-rbtree.c: In function 'regcache_rbtree_init':
> 	drivers/base/regmap/regcache-rbtree.c:197: error: 'struct regmap' has no member named 'debugfs'
> 	drivers/base/regmap/regcache-rbtree.c:197: error: 'rbtree_fops' undeclared (first use in this function)
> 	drivers/base/regmap/regcache-rbtree.c:197: error: (Each undeclared identifier is reported only once
> 	drivers/base/regmap/regcache-rbtree.c:197: error: for each function it appears in.)
> 
> which was introduced by commit
> 
> 	bad2ab4 (regmap: Provide debugfs dump of the rbtree cache data)
> 
> currently in next-20111122.
> 
> Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> ---
>  drivers/base/regmap/regcache-rbtree.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
> index 7767cbb..270ad65 100644
> --- a/drivers/base/regmap/regcache-rbtree.c
> +++ b/drivers/base/regmap/regcache-rbtree.c
> @@ -194,7 +194,9 @@ static int regcache_rbtree_init(struct regmap *map)
>  			goto err;
>  	}
>  
> +#ifdef CONFIG_DEBUG_FS
>  	debugfs_create_file("rbtree", 0400, map->debugfs, map, &rbtree_fops);
> +#endif

What about introducing a debugfs_create_file() noop if debug-fs is not
compiled in?

Marc

>  
>  	return 0;
>  


-- 
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