linux-kernel - Re: linux-next: build failure after merge of the origin tree

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Date:	Thu, 19 Jan 2012 09:23:16 +0100
From:	Jens Axboe <axboe@...nel.dk>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: linux-next: build failure after merge of the origin tree

On 01/19/2012 09:21 AM, Jens Axboe wrote:
> On 01/19/2012 12:31 AM, Stephen Rothwell wrote:
>> Hi Linus,
>>
>> After merging the origin tree, today's linux-next build (x86_64
>> allmodconfig) failed like this:
>>
>> ERROR: "xen_biovec_phys_mergeable" [drivers/block/nvme.ko] undefined!
>>
>> This is weird, as CONFIG_BLOCK and CONFIG_XEN are both set in this build
>> and I started with an empty object directory.  And biomerge.o has been
>> built.
>>
>> Ah ha!
>>
>> drivers/xen/biomerge.c:14:1: warning: data definition has no type or storage class [enabled by default]
>> drivers/xen/biomerge.c:14:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' [-Wimplicit-int]
>> drivers/xen/biomerge.c:14:1: warning: parameter names (without types) in function declaration [enabled by default]
>>
>> drivers/xen/biomerge.c does not include export.h.  It would be nice if
>> this produced an error, not just the warnings above.  Caused by commit
>> 0b934ccd707f ("Xen: Export xen_biovec_phys_mergeable") (which was never
>> in linux-next :-().
>>
>> I applied the following patch for today:
> 
> Thanks Stephen, applied.

Already in, even better :-)

-- 
Jens Axboe

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