linux-kernel - Re: [PATCH] block: include dd_queued{,_show} into proper BLK_DEBUG

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Date:   Mon, 6 Sep 2021 11:39:52 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Julio Faracco <jfaracco@...hat.com>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: include dd_queued{,_show} into proper BLK_DEBUG_FS
 guard

On 9/6/21 11:36 AM, Julio Faracco wrote:
> Thanks Jens.
> 
> On Mon, Sep 6, 2021 at 1:44 PM Jens Axboe <axboe@...nel.dk> wrote:
>>
>> On 9/6/21 10:38 AM, Julio Faracco wrote:
>>> This commit fixes a compilation issue to an unused function if
>>> BLK_DEBUG_FS setting is not enabled. This usually happens in tiny
>>> kernels with several debug options disabled. For further details,
>>> see the message below:
>>>
>>> ../block/mq-deadline.c:274:12: error: ‘dd_queued’ defined but not used [-Werror=unused-function]
>>>   274 | static u32 dd_queued(struct deadline_data *dd, enum dd_prio prio)
>>>       |            ^~~~~~~~~
>>> cc1: all warnings being treated as errors
>>
>> This is like the 10th one of these... The patch has been queued up for
>> about a week, if you check linux-next or the block tree. It's going
>> upstream soon, in fact it was already sent in yesterday.
> 
> I noticed after seeing the same patch earlier this morning, but it was
> too late to undo.
> Discard my patch, pls.

No worries - fwiw, the fix is upstream now.

-- 
Jens Axboe