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From: kernel test robot <lkp@intel.com>
To: Wesley Cheng <quic_wcheng@quicinc.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: sound/usb/qcom/qc_audio_offload.c:943:27: sparse: sparse: incorrect type in argument 2 (different base types)
Date: Tue, 07 Apr 2026 12:02:10 +0800	[thread overview]
Message-ID: <202604062109.Oxi8JjWW-lkp@intel.com> (raw)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   591cd656a1bf5ea94a222af5ef2ee76df029c1d2
commit: 326bbc348298ab0946c5560defe024a5f6ef28bb ALSA: usb-audio: qcom: Introduce QC USB SND offloading support
date:   12 months ago
config: hexagon-randconfig-r134-20260406 (https://download.01.org/0day-ci/archive/20260406/202604062109.Oxi8JjWW-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project c80443cd37b2e2788cba67ffa180a6331e5f0791)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260406/202604062109.Oxi8JjWW-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 326bbc348298 ("ALSA: usb-audio: qcom: Introduce QC USB SND offloading support")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604062109.Oxi8JjWW-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> sound/usb/qcom/qc_audio_offload.c:943:27: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected unsigned int val @@     got restricted snd_pcm_format_t [usertype] pcm_format @@
   sound/usb/qcom/qc_audio_offload.c:943:27: sparse:     expected unsigned int val
   sound/usb/qcom/qc_audio_offload.c:943:27: sparse:     got restricted snd_pcm_format_t [usertype] pcm_format

vim +943 sound/usb/qcom/qc_audio_offload.c

   912	
   913	/**
   914	 * enable_audio_stream() - enable usb snd endpoints
   915	 * @subs: usb substream
   916	 * @pcm_format: pcm format requested
   917	 * @channels: number of channels
   918	 * @cur_rate: sample rate
   919	 * @datainterval: interval
   920	 *
   921	 * Opens all USB SND endpoints used for the data interface.  This will increment
   922	 * the USB SND endpoint's opened count.  Requests to keep the interface resumed
   923	 * until the audio stream is stopped.  Will issue the USB set interface control
   924	 * message to enable the data interface.
   925	 *
   926	 */
   927	static int enable_audio_stream(struct snd_usb_substream *subs,
   928				       snd_pcm_format_t pcm_format,
   929				       unsigned int channels, unsigned int cur_rate,
   930				       int datainterval)
   931	{
   932		struct snd_pcm_hw_params params;
   933		struct snd_usb_audio *chip;
   934		struct snd_interval *i;
   935		struct snd_mask *m;
   936		int ret;
   937	
   938		chip = subs->stream->chip;
   939	
   940		_snd_pcm_hw_params_any(&params);
   941	
   942		m = hw_param_mask(&params, SNDRV_PCM_HW_PARAM_FORMAT);
 > 943		snd_mask_leave(m, pcm_format);
   944	
   945		i = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_CHANNELS);
   946		snd_interval_setinteger(i);
   947		i->min = channels;
   948		i->max = channels;
   949	
   950		i = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE);
   951		snd_interval_setinteger(i);
   952		i->min = cur_rate;
   953		i->max = cur_rate;
   954	
   955		pm_runtime_barrier(&chip->intf[0]->dev);
   956		snd_usb_autoresume(chip);
   957	
   958		ret = snd_usb_hw_params(subs, &params);
   959		if (ret < 0)
   960			goto put_suspend;
   961	
   962		if (!atomic_read(&chip->shutdown)) {
   963			ret = snd_usb_lock_shutdown(chip);
   964			if (ret < 0)
   965				goto detach_ep;
   966	
   967			if (subs->sync_endpoint) {
   968				ret = snd_usb_endpoint_prepare(chip, subs->sync_endpoint);
   969				if (ret < 0)
   970					goto unlock;
   971			}
   972	
   973			ret = snd_usb_endpoint_prepare(chip, subs->data_endpoint);
   974			if (ret < 0)
   975				goto unlock;
   976	
   977			snd_usb_unlock_shutdown(chip);
   978	
   979			dev_dbg(uaudio_qdev->data->dev,
   980				"selected %s iface:%d altsetting:%d datainterval:%dus\n",
   981				subs->direction ? "capture" : "playback",
   982				subs->cur_audiofmt->iface, subs->cur_audiofmt->altsetting,
   983				(1 << subs->cur_audiofmt->datainterval) *
   984				(subs->dev->speed >= USB_SPEED_HIGH ?
   985				BUS_INTERVAL_HIGHSPEED_AND_ABOVE :
   986				BUS_INTERVAL_FULL_SPEED));
   987		}
   988	
   989		return 0;
   990	
   991	unlock:
   992		snd_usb_unlock_shutdown(chip);
   993	
   994	detach_ep:
   995		snd_usb_hw_free(subs);
   996	
   997	put_suspend:
   998		snd_usb_autosuspend(chip);
   999	
  1000		return ret;
  1001	}
  1002	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

                 reply	other threads:[~2026-04-07  4:02 UTC|newest]

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