Re: [PATCH -next] ALSA: line6: Fix -Wunused-const-variable warnings

[Takashi Iwai <tiwai@suse.de>]

On Thu, 22 Aug 2019 16:57:41 +0200,
YueHaibing wrote:
> 
> sound/usb/line6/driver.h:69:18: warning:
>  SYSEX_DATA_OFS defined but not used [-Wunused-const-variable=]
> sound/usb/line6/driver.h:70:18: warning:
>  SYSEX_EXTRA_SIZE defined but not used [-Wunused-const-variable=]
> 
> SYSEX_EXTRA_SIZE is only used in driver.c and
> SYSEX_DATA_OFS in pod.c, so move them to .c fix
> this warning.
> 
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>

No, this makes things worse.  It should have been simply a normal
define instead.

Care to resend the fix with replacement to define?


thanks,

Takashi

> ---
>  sound/usb/line6/driver.c | 2 ++
>  sound/usb/line6/driver.h | 3 ---
>  sound/usb/line6/pod.c    | 2 ++
>  3 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
> index b5a3f75..8027da8 100644
> --- a/sound/usb/line6/driver.c
> +++ b/sound/usb/line6/driver.c
> @@ -31,6 +31,8 @@ const unsigned char line6_midi_id[3] = {
>  };
>  EXPORT_SYMBOL_GPL(line6_midi_id);
>  
> +static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
> +
>  /*
>  	Code to request version of POD, Variax interface
>  	(and maybe other devices).
> diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
> index e5e572e..c57633a 100644
> --- a/sound/usb/line6/driver.h
> +++ b/sound/usb/line6/driver.h
> @@ -66,9 +66,6 @@
>  
>  extern const unsigned char line6_midi_id[3];
>  
> -static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
> -static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
> -
>  /*
>  	 Common properties of Line 6 devices.
>  */
> diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c
> index ee4c9d2..24ad337 100644
> --- a/sound/usb/line6/pod.c
> +++ b/sound/usb/line6/pod.c
> @@ -110,6 +110,8 @@ enum {
>  	POD_BUSY_MIDISEND
>  };
>  
> +static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
> +
>  static struct snd_ratden pod_ratden = {
>  	.num_min = 78125,
>  	.num_max = 78125,
> -- 
> 2.7.4
> 
> 
>