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From: Takashi Iwai <tiwai@suse.de>
To: Mark Brown <broonie@kernel.org>
Cc: kbuild-all@01.org, alsa-devel@alsa-project.org,
	Dan Murphy <dmurphy@ti.com>, kbuild test robot <lkp@intel.com>
Subject: Re: [alsa-devel] [asoc:for-5.5 122/122] sound/soc/codecs/tas2562.c:195:14: sparse: sparse: restricted snd_pcm_format_t degrades to integer
Date: Tue, 22 Oct 2019 07:08:16 +0200	[thread overview]
Message-ID: <s5h7e4xe5a7.wl-tiwai@suse.de> (raw)
In-Reply-To: <20191021191913.GI4691@sirena.co.uk>

On Mon, 21 Oct 2019 21:19:13 +0200,
Mark Brown wrote:
> 
> On Fri, Oct 11, 2019 at 07:13:38AM -0500, Dan Murphy wrote:
> > On 10/10/19 11:41 AM, kbuild test robot wrote:
> 
> > >     190	static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
> 
> > The only fix I can see here is to change bitwidth to snd_pcm_format_t as
> 
> > But that still gives this sparse warning.  The way the code below is
> > written  to be consistent throughout the drivers so are these warnings false
> > positives?
> 
> I think so, yes.  Or at least I can't see any sensible way to stop this
> anyway.

You can pass the real bit width (16, 24, 32) via
snd_pcm_format_width().

BTW, the error message after tas2562_set_samplerate() seems bogus,
still indicating the bitwidth instead of the rate.


thanks,

Takashi
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      parent reply	other threads:[~2019-10-22  5:09 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-10 16:41 [alsa-devel] [asoc:for-5.5 122/122] sound/soc/codecs/tas2562.c:195:14: sparse: sparse: restricted snd_pcm_format_t degrades to integer kbuild test robot
2019-10-11 12:13 ` Dan Murphy
2019-10-21 19:19   ` Mark Brown
2019-10-22  0:17     ` [alsa-devel] [kbuild-all] " Rong Chen
2019-10-22  5:08     ` Takashi Iwai [this message]

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