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Subject: Re: linux-next: build failure after merge of the vfs tree
To:     Al Viro <viro@zeniv.linux.org.uk>,
        Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
References: <20200507103921.371b1329@canb.auug.org.au>
 <20200507023557.GE23230@ZenIV.linux.org.uk>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <c8db44e9-b040-69ba-52e5-9e31842bb799@kernel.dk>
Date:   Thu, 7 May 2020 09:07:25 -0600
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On 5/6/20 8:35 PM, Al Viro wrote:
> On Thu, May 07, 2020 at 10:39:21AM +1000, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the vfs tree, today's linux-next build (arm
>> multi_v7_defconfig) failed like this:
>>
>> fs/eventfd.c: In function 'eventfd_read':
>> fs/eventfd.c:226:6: error: implicit declaration of function 'iov_iter_count' [-Werror=implicit-function-declaration]
>>   226 |  if (iov_iter_count(to) < sizeof(ucnt))
>>       |      ^~~~~~~~~~~~~~
>> In file included from include/linux/file.h:9,
>>                  from fs/eventfd.c:9:
>> fs/eventfd.c:257:15: error: implicit declaration of function 'copy_to_iter'; did you mean 'copy_to_user'? [-Werror=implicit-function-declaration]
>>   257 |  if (unlikely(copy_to_iter(&ucnt, sizeof(ucnt), to) != sizeof(ucnt)))
>>       |               ^~~~~~~~~~~~
>>
>> Caused by commit
>>
>>   a6515b3a7410 ("eventfd: convert to f_op->read_iter()")
>>
>> I have applied the following patch for today:
> 
> [snip]
> 
> folded and pushed out

Thanks Al.

-- 
Jens Axboe