linux-kernel - Re: [PATCH] mmc: core: remove issue

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Date:	Thu, 26 Sep 2013 14:56:47 -0700
From:	Grant Grundler <grundler@...omium.org>
To:	Chris Ball <cjb@...top.org>
Cc:	Ulf Hansson <ulf.hansson@...aro.org>,
	Grant Grundler <grundler@...omium.org>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: core: remove issue_fn indirect function call

On Wed, Sep 25, 2013 at 7:37 PM, Chris Ball <cjb@...top.org> wrote:
> Hi,
>
> On Wed, Sep 25 2013, Chris Ball wrote:
>> Hi,
>>
>> On Fri, Sep 20 2013, Ulf Hansson wrote:
>>> On 19 September 2013 19:20, Grant Grundler <grundler@...omium.org> wrote:
>>>> struct mmc_queue defines issue_fn as an indirect function call.
>>>> issue_fn field only gets set to mmc_blk_issue_rq and only gets
>>>> invoked immediately after calling blk_fetch_request().
>>>> Don't bother with indirect function call - it's pointless and just
>>>> obfuscates the code.
>>>>
>>>> Signed-off-by: Grant Grundler <grundler@...omium.org>
>>>
>>> Acked-by: Ulf Hansson <ulf.hansson@...aro.org>
>>
>> Thanks, pushed to mmc-next for 3.13.
>
> Have dropped this, it's breaking my build:
>
> /home/cjb/git/mmc/drivers/mmc/card/block.c:1955:12: warning: ‘mmc_blk_issue_rq’ defined but not used [-Wunused-function]

The function is declared static. :(  Let me respin to remove the
static and add a function prototype to a header file. I just got lucky
when I built this in an earlier tree.

sorry about that...

grant

> /home/cjb/git/mmc/drivers/mmc/card/queue.c: In function ‘mmc_queue_thread’:
> /home/cjb/git/mmc/drivers/mmc/card/queue.c:70:4: error: implicit declaration of function ‘mmc_blk_issue_rq’ [-Werror=implicit-function-declaration]


>
> Grant, please could you take a look and resubmit?
>
> - Chris.
> --
> Chris Ball   <cjb@...top.org>   <http://printf.net/>
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