linux-kernel - Re: [alsa-devel] [PATCH 08/10] ASoC: img: Add driver for SPDIF input controller

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Date:	Wed, 30 Sep 2015 23:53:30 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Damien Horsley <Damien.Horsley@...tec.com>
Cc:	kbuild-all@...org, alsa-devel@...a-project.org,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	"Damien.Horsley" <Damien.Horsley@...tec.com>
Subject: Re: [alsa-devel] [PATCH 08/10] ASoC: img: Add driver for SPDIF input
 controller

Hi Damien.Horsley,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

reproduce:
  # apt-get install sparse
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> sound/soc/img/img-spdif-in.c:650:16: sparse: incorrect type in assignment (different base types)
   sound/soc/img/img-spdif-in.c:650:16:    expected unsigned int [unsigned] format
   sound/soc/img/img-spdif-in.c:650:16:    got restricted snd_pcm_format_t
>> sound/soc/img/img-spdif-in.c:652:23: sparse: restricted snd_pcm_format_t degrades to integer

vim +650 sound/soc/img/img-spdif-in.c

   644	{
   645		struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
   646		unsigned int rate, channels, format;
   647	
   648		rate = params_rate(params);
   649		channels = params_channels(params);
 > 650		format = params_format(params);
   651	
 > 652		if (format != SNDRV_PCM_FORMAT_S32_LE)
   653			return -EINVAL;
   654	
   655		if (channels != 2)

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