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Date: Wed, 03 Apr 2024 13:03:18 +0200
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Heiko Stuebner <heiko@...ech.de>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Luca Ceresoli <luca.ceresoli@...tlin.com>, 
 kernel test robot <lkp@...el.com>
Subject: [PATCH v2 1/2] ASoC: codecs: rk3308: fix "defined but not used"
 warning on !OF

Building with CONFIG_OF=n triggers:

  warning: 'rk3308_codec_of_match' defined but not used [-Wunused-const-variable=]
  warning: unused variable 'rk3308_codec_of_match' [-Wunused-const-variable]

Even though OF is needed for probing, fix by declaring as __maybe_unused to
still allow building on non-OF configurations for build testing.

Fixes: 9fdd7b45da18 ("arm64: defconfig: enable Rockchip RK3308 internal audio codec driver")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403271905.BYbGJiPi-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202403271907.0z0uuG5I-lkp@intel.com/
Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
---
 sound/soc/codecs/rk3308_codec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rk3308_codec.c b/sound/soc/codecs/rk3308_codec.c
index 9d3e4691a7b5..74c3836995b1 100644
--- a/sound/soc/codecs/rk3308_codec.c
+++ b/sound/soc/codecs/rk3308_codec.c
@@ -953,7 +953,7 @@ static int rk3308_codec_platform_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id rk3308_codec_of_match[] = {
+static const struct of_device_id __maybe_unused rk3308_codec_of_match[] = {
 	{ .compatible = "rockchip,rk3308-codec", },
 	{},
 };

-- 
2.34.1


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