linux-kernel - Re: [PATCH] net/sunrpc/svc.c: fix sparse warning

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Message-ID: <20090514190205.GA8367@fieldses.org>
Date:	Thu, 14 May 2009 15:02:05 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] net/sunrpc/svc.c: fix sparse warning

On Thu, May 14, 2009 at 01:25:45PM -0400, H Hartley Sweeten wrote:
> Change any_online_node() from a macro to a static inline function.
> 
> any_online_node() uses the symbol 'node', this causes a sparse
> warning in net/sunrpc/svc.c.  Changing the macro to a static
> inline function removes the sparse warning and will prevent the
> same warning from possibly occurring in the future.
> 
> Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>

I'm not sure where this goes--so maybe Andrew should take it?

--b.

> 
> ---
> 
> diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
> index 848025c..16df302 100644
> --- a/include/linux/nodemask.h
> +++ b/include/linux/nodemask.h
> @@ -440,15 +440,6 @@ static inline int num_node_state(enum node_states state)
>  #define node_online_map 	node_states[N_ONLINE]
>  #define node_possible_map 	node_states[N_POSSIBLE]
>  
> -#define any_online_node(mask)			\
> -({						\
> -	int node;				\
> -	for_each_node_mask(node, (mask))	\
> -		if (node_online(node))		\
> -			break;			\
> -	node;					\
> -})
> -
>  #define num_online_nodes()	num_node_state(N_ONLINE)
>  #define num_possible_nodes()	num_node_state(N_POSSIBLE)
>  #define node_online(node)	node_state((node), N_ONLINE)
> @@ -460,4 +451,15 @@ static inline int num_node_state(enum node_states state)
>  #define for_each_node(node)	   for_each_node_state(node, N_POSSIBLE)
>  #define for_each_online_node(node) for_each_node_state(node, N_ONLINE)
>  
> +static inline int any_online_node(nodemask_t mask)
> +{
> +	int node;
> +
> +	for_each_node_mask(node, mask) {
> +		if (node_online(node))
> +			break;
> +	}
> +	return node;
> +}
> +
>  #endif /* __LINUX_NODEMASK_H */ 
--
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