Re: [nfs:devel 46/51] fs/nfs/write.c:1592:5: error: redefinition of 'nfs_commit_inode'

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On 07/31/2012 09:05 AM, Bryan Schumaker wrote:
> On 07/31/2012 08:55 AM, Myklebust, Trond wrote:
>> On Tue, 2012-07-31 at 08:47 -0400, Bryan Schumaker wrote:
>>> On 07/30/2012 11:14 PM, Myklebust, Trond wrote:
>>>> Bryan,
>>>>
>>>> Why did you switch to using IS_ENABLED in the first place, and why wasn't that put in a separate patch?
>>>
>>> IS_ENABLED() will check for CONFIG_NFS_V*_MODULE, last I checked the defined() macro doesn't.  Putting this into a separate patch makes the change non-bisectable since gcc will be checking against CONFIG_NFS_V3 but CONFIG_NFS_V3_MODULE is set.  Should I have changed the CONFIG_ variables instead of using IS_ENABLED()?
>>
>> Why is it evaluating differently in the include file vs. the .c file?
>> Are we missing an include in nfs_fs.h?
> 
> Good question.  I don't see any reason that it would evaluate differently, but I'm compiling the .config attached to the initial email to try to figure it out.
> 

Looks like the IS_ENABLED() switch got pushed to the next patch for V3 in include/linux/nfs_fs.h.  Want me to resend the patches?  I took another look at how IS_ENABLED() is defined, and it'll work if I do the switch in the patch before I turn everything into separate modules if you want me to resend everything.

> - Bryan
> 
>>
>>>>
>>>>
>>>>
>>>>> -----Original Message-----
>>>>> From: Fengguang Wu [mailto:fengguang.wu@xxxxxxxxx]
>>>>> Sent: Monday, July 30, 2012 10:43 PM
>>>>> To: Schumaker, Bryan
>>>>> Cc: kernel-janitors@xxxxxxxxxxxxxxx; Myklebust, Trond; linux-
>>>>> nfs@xxxxxxxxxxxxxxx
>>>>> Subject: [nfs:devel 46/51] fs/nfs/write.c:1592:5: error: redefinition of
>>>>> 'nfs_commit_inode'
>>>>>
>>>>> Hi Bryan,
>>>>>
>>>>> Kernel build failed on
>>>>>
>>>>> tree:   git://git.linux-nfs.org/projects/trondmy/linux-nfs.git devel
>>>>> head:   5c13c9e1c15ee2ca9ab2b953224001af53d9be09
>>>>> commit: 1c606fb74c758beafd98cbad9a9133eadeec2371 [46/51] NFS: Convert
>>>>> v3 into a module
>>>>> config: blackfin-BF533-EZKIT_defconfig (attached as .config)
>>>>>
>>>>> All related error/warning messages:
>>>>>
>>>>> fs/nfs/write.c:1592:5: error: redefinition of 'nfs_commit_inode'
>>>>> In file included from fs/nfs/write.c:19:0:
>>>>> include/linux/nfs_fs.h:547:1: note: previous definition of 'nfs_commit_inode'
>>>>> was here
>>>>>
>>>>> vim +1592 fs/nfs/write.c
>>>>>   1589		return status;
>>>>>   1590	}
>>>>>   1591
>>>>>> 1592	int nfs_commit_inode(struct inode *inode, int how)
>>>>>   1593	{
>>>>>   1594		LIST_HEAD(head);
>>>>>   1595		struct nfs_commit_info cinfo;
>>>>>
>>>>> ---
>>>>> 0-DAY kernel build testing backend         Open Source Technology Centre
>>>>> Fengguang Wu <wfg@xxxxxxxxxxxxxxx>                     Intel Corporation
>>>
>>
> 

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