linux-kernel - Re: [PATCH] DAC960: hide unused procfs helpers

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Message-ID: <052d5583-8b72-e052-36f9-2156df2be4f5@huawei.com>
Date:   Fri, 13 Jul 2018 17:19:48 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <axboe@...nel.dk>
CC:     <linux-kernel@...r.kernel.org>, <linux-block@...r.kernel.org>
Subject: Re: [PATCH] DAC960: hide unused procfs helpers

Pls ignore this, there has a fix.

[PATCH] block/DAC960.c: fix defined but not used build warnings

On 2018/7/13 15:16, YueHaibing wrote:
> When CONFIG_PROC_FS isn't set, gcc warning this:
> 
> drivers/block/DAC960.c:6429:12: warning: ‘dac960_proc_show’ defined but not used [-Wunused-function]
>  static int dac960_proc_show(struct seq_file *m, void *v)
>             ^
> drivers/block/DAC960.c:6449:12: warning: ‘dac960_initial_status_proc_show’ defined but not used [-Wunused-function]
>  static int dac960_initial_status_proc_show(struct seq_file *m, void *v)
>             ^
> drivers/block/DAC960.c:6456:12: warning: ‘dac960_current_status_proc_show’ defined but not used [-Wunused-function]
>  static int dac960_current_status_proc_show(struct seq_file *m, void *v)
>             ^
> fix this by adding #ifdef around them.
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/block/DAC960.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
> index f651806..7a05831 100644
> --- a/drivers/block/DAC960.c
> +++ b/drivers/block/DAC960.c
> @@ -6426,6 +6426,7 @@ static bool DAC960_V2_ExecuteUserCommand(DAC960_Controller_T *Controller,
>    return true;
>  }
>  
> +#ifdef CONFIG_PROC_FS
>  static int dac960_proc_show(struct seq_file *m, void *v)
>  {
>    unsigned char *StatusMessage = "OK\n";
> @@ -6485,6 +6486,7 @@ static int dac960_current_status_proc_show(struct seq_file *m, void *v)
>  	seq_printf(m, "%.*s", Controller->CurrentStatusLength, Controller->CurrentStatusBuffer);
>  	return 0;
>  }
> +#endif
>  
>  static int dac960_user_command_proc_show(struct seq_file *m, void *v)
>  {
>