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Message-ID: <0e30a0ab635f0348bcf582efe018e53334a276fe.camel@perches.com>
Date: Sat, 29 Sep 2018 19:17:59 -0700
From: Joe Perches <joe@...ches.com>
To: zhong jiang <zhongjiang@...wei.com>, broonie@...nel.org
Cc: perex@...ex.cz, tiwai@...e.com, lgirdwood@...il.com,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: wm8731: Fix a unused function gcc warning
On Sun, 2018-09-30 at 09:45 +0800, zhong jiang wrote:
> Fix the following compile warning:
>
> sound/soc/codecs/wm8731.c:575:12: warning: 'wm8731_request_supplies' defined but not used [-Wunused-function]
> sound/soc/codecs/wm8731.c:600:12: warning: 'wm8731_hw_init' defined but not used [-Wunused-function]
[]
> diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
[]
> @@ -36,12 +36,15 @@
> #include "wm8731.h"
>
> #define WM8731_NUM_SUPPLIES 4
> +
> +#if defined(CONFIG_I2C) || defined(CONFIG_SPI_MASTER)
> static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
> "AVDD",
> "HPVDD",
> "DCVDD",
> "DBVDD",
> };
> +#endif
>
> /* codec private data */
> struct wm8731_priv {
> @@ -572,6 +575,7 @@ static int wm8731_startup(struct snd_pcm_substream *substream,
> .symmetric_rates = 1,
> };
>
> +#if defined(CONFIG_I2C) || defined(CONFIG_SPI_MASTER)
> static int wm8731_request_supplies(struct device *dev,
> struct wm8731_priv *wm8731)
> {
> @@ -627,6 +631,7 @@ static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731)
>
> return ret;
> }
> +#endif
It would be better to move the declaration of
wm8731_supply_ fnames into the second #if block so
there would only be a single #if block.
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