linux-kernel - Re: [PATCH] sound: oss: fix build warning

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Date:	Mon, 18 May 2015 10:29:10 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sound: oss: fix build warning

At Thu, 14 May 2015 16:42:59 +0530,
Sudip Mukherjee wrote:
> 
> while building with allyesconfig it was giving a build warning about
> unused variable. declare the variable only if the driver is built as a
> module.
> 
> Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>

Ideally it'd be better to convert to use isapnp_device_id table
directly, but this code is a bit tricky (YMH0021 isn't exposed as a
probe id), so I applied your patch as is.


thanks,

Takashi

> ---
> 
> build tested with allyesconfig and allmodconfig
> 
>  sound/oss/ad1848.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/sound/oss/ad1848.c b/sound/oss/ad1848.c
> index ec1ee07..10c8de1 100644
> --- a/sound/oss/ad1848.c
> +++ b/sound/oss/ad1848.c
> @@ -2860,6 +2860,7 @@ static struct {
>  	{NULL}
>  };
>  
> +#ifdef MODULE
>  static struct isapnp_device_id id_table[] = {
>  	{	ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001),
>  		ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), 0 },
> @@ -2877,6 +2878,7 @@ static struct isapnp_device_id id_table[] = {
>  };
>  
>  MODULE_DEVICE_TABLE(isapnp, id_table);
> +#endif
>  
>  static struct pnp_dev *activate_dev(char *devname, char *resname, struct pnp_dev *dev)
>  {
> -- 
> 1.8.1.2
> 
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