linux-kernel - Re: [PATCH] dma: timb_dma: Fix compiler warning

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Date:	Tue, 19 Feb 2013 13:44:51 +0100
From:	"Maxin B. John" <maxin.john@...il.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	djbw@...com, vinod.koul@...el.com, geert@...ux-m68k.org,
	linux-kernel@...r.kernel.org, "Maxin B. John" <maxin.john@...a.com>
Subject: Re: [PATCH] dma: timb_dma: Fix compiler warning

On Tue, Feb 19, 2013 at 12:36 PM, Lars-Peter Clausen <lars@...afoo.de> wrote:
> On 02/18/2013 08:59 PM, maxin.john@...il.com wrote:
>> From: "Maxin B. John" <maxin.john@...a.com>
>>
>> Fix this compiler warning:
>> warning: 'td_remove' defined but not used [-Wunused-function]
>>
>> Signed-off-by: Maxin B. John <maxin.john@...a.com>
>> ---
>>  drivers/dma/timb_dma.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
>> index 952f823..f709279 100644
>> --- a/drivers/dma/timb_dma.c
>> +++ b/drivers/dma/timb_dma.c
>> @@ -798,7 +798,7 @@ err_release_region:
>>
>>  }
>>
>> -static int td_remove(struct platform_device *pdev)
>> +static int __exit td_remove(struct platform_device *pdev)
>>  {
>
>>
>
> While this fixes the warning, it's the wrong fix. The correct fix is to
> remove the __exit_p. E.g. something like this:
>
> --- a/drivers/dma/timb_dma.c
> +++ b/drivers/dma/timb_dma.c
> @@ -823,7 +823,7 @@ static struct platform_driver td_driver = {
>                 .owner  = THIS_MODULE,
>         },
>         .probe  = td_probe,
> -       .remove = __exit_p(td_remove),
> +       .remove = td_remove,
>  };
>
>  module_platform_driver(td_driver);

You are right, my bad. I will modify this and send the revised
version soon.

Thanks and Regards,
Maxin
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