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From: Glauber Costa <glommer@parallels.com>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: kernel-janitors@vger.kernel.org,
	Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [glommer-memcg:kmemcg-slab 57/62] drivers/video/riva/fbdev.c:281:9: sparse: preprocessor token MAX_LEVEL redefined
Date: Mon, 10 Sep 2012 18:02:34 +0400	[thread overview]
Message-ID: <504DF2FA.2020200@parallels.com> (raw)
In-Reply-To: <20120910130617.GA11963@localhost>

On 09/10/2012 05:06 PM, Fengguang Wu wrote:
> On Mon, Sep 10, 2012 at 04:58:02PM +0400, Glauber Costa wrote:
>> On 09/10/2012 04:57 PM, Fengguang Wu wrote:
>>> Glauber,
>>>
>>> The patch entitled
>>>
>>>  sl[au]b: Allocate objects from memcg cache
>>>
>>> changes
>>>
>>>  include/linux/slub_def.h |   15 ++++++++++-----
>>>
>>> which triggers this warning:
>>>
>>> drivers/video/riva/fbdev.c:281:9: sparse: preprocessor token MAX_LEVEL redefined
>>>
>>> It's the MAX_LEVEL that is defined in include/linux/idr.h.
>>>
>>> MAX_LEVEL is obviously too generic. Better adding some prefix to it?
>>>
>>
>> I don't see any MAX_LEVEL definition in this patch. You say it is
>> defined in include/linux/idr.h, and as the diffstat shows, I am not
>> touching this file.
> 
> It's a rather *unexpected* side effect. You changed slub_def.h to
> include memcontrol.h/cgroup.h which in turn includes idr.h.
> 
Indeed.
>> I think this needs patching independently.
> 
> Yes, sure. And perhaps send it for quick inclusion before your patches?
> 

I agree.

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      reply	other threads:[~2012-09-10 14:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20120910111638.GC9660@localhost>
2012-09-10 12:57 ` [glommer-memcg:kmemcg-slab 57/62] drivers/video/riva/fbdev.c:281:9: sparse: preprocessor token MAX_LEVEL redefined Fengguang Wu
2012-09-10 12:58   ` Glauber Costa
2012-09-10 13:06     ` Fengguang Wu
2012-09-10 14:02       ` Glauber Costa [this message]

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