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

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Date:	Thu, 16 Apr 2009 15:15:17 -0400
From:	"H Hartley Sweeten" <hartleys@...ionengravers.com>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] net/sunrpc/svc.c: fix sparse warning

On Thursday, April 16, 2009 12:06 PM, J. Bruce Fields wrote:
> On Wed, Apr 15, 2009 at 03:46:13PM -0400, H Hartley Sweeten wrote:
>> Fix sparse warning in net/sunrpc/svc.c.
>> 
>> 	warning: symbol 'node' shadows an earlier one
>
> What's the other symbol?

Sorry. Left that out...

include/linux/nodemask.h

#define any_online_node(mask)			\
({						\
	int node;				\
	for_each_node_mask(node, (mask))	\
		if (node_online(node))		\
			break;			\
	node;					\
})

arch/powerpc/mm/numa.c is the only other user of that macro. In that
file the local variable is called nid, hence the name change in this
patch.

Regards,
Hartley

>> 
>> Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
>> 
>> ---
>> 
>> diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
>> index 8847add..e781135 100644
>> --- a/net/sunrpc/svc.c
>> +++ b/net/sunrpc/svc.c
>> @@ -122,7 +122,7 @@ module_param_call(pool_mode, param_set_pool_mode,
>> param_get_pool_mode,
>>  static int
>>  svc_pool_map_choose_mode(void)
>>  {
>> -	unsigned int node;
>> +	unsigned int nid;
>>  
>>  	if (num_online_nodes() > 1) {
>>  		/*
>> @@ -132,8 +132,8 @@ svc_pool_map_choose_mode(void)
>>  		return SVC_POOL_PERNODE;
>>  	}
>>  
>> -	node = any_online_node(node_online_map);
>> -	if (nr_cpus_node(node) > 2) {
>> +	nid = any_online_node(node_online_map);
>> +	if (nr_cpus_node(nid) > 2) {
>>  		/*
>>  		 * Non-trivial SMP, or CONFIG_NUMA on
>>  		 * non-NUMA hardware, e.g. with a generic 
--
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