CC: [email protected]
CC: Linux Memory Management List <[email protected]>
TO: Anton Yakovlev <[email protected]>
CC: "Michael S. Tsirkin" <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 
master
head:   ff90dfd2579b2c7bc1f0baa0cb99c918c6c1ec64
commit: bd80b5294a0d7da5debd5886cab55a7b96993992 [9712/11791] ALSA: virtio: 
introduce PCM channel map support
:::::: branch date: 27 hours ago
:::::: commit date: 9 days ago
config: microblaze-randconfig-s031-20210219 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-229-g60c1f270-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=bd80b5294a0d7da5debd5886cab55a7b96993992
        git remote add linux-next 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout bd80b5294a0d7da5debd5886cab55a7b96993992
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


"sparse warnings: (new ones prefixed by >>)"
>> sound/virtio/virtio_chmap.c:66:9: sparse: sparse: no generic selection for 
>> 'restricted __le32 virtio_cread_v'
>> sound/virtio/virtio_chmap.c:66:9: sparse: sparse: incompatible types in 
>> comparison expression (different base types):
>> sound/virtio/virtio_chmap.c:66:9: sparse:    bad type *
>> sound/virtio/virtio_chmap.c:66:9: sparse:    unsigned int *
>> sound/virtio/virtio_chmap.c:66:9: sparse: sparse: no generic selection for 
>> 'restricted __le32 [addressable] virtio_cread_v'

vim +66 sound/virtio/virtio_chmap.c

bd80b5294a0d7d Anton Yakovlev 2021-02-09   50  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   51  /**
bd80b5294a0d7d Anton Yakovlev 2021-02-09   52   * virtsnd_chmap_parse_cfg() - 
Parse the channel map configuration.
bd80b5294a0d7d Anton Yakovlev 2021-02-09   53   * @snd: VirtIO sound device.
bd80b5294a0d7d Anton Yakovlev 2021-02-09   54   *
bd80b5294a0d7d Anton Yakovlev 2021-02-09   55   * This function is called 
during initial device initialization.
bd80b5294a0d7d Anton Yakovlev 2021-02-09   56   *
bd80b5294a0d7d Anton Yakovlev 2021-02-09   57   * Context: Any context that 
permits to sleep.
bd80b5294a0d7d Anton Yakovlev 2021-02-09   58   * Return: 0 on success, -errno 
on failure.
bd80b5294a0d7d Anton Yakovlev 2021-02-09   59   */
bd80b5294a0d7d Anton Yakovlev 2021-02-09   60  int 
virtsnd_chmap_parse_cfg(struct virtio_snd *snd)
bd80b5294a0d7d Anton Yakovlev 2021-02-09   61  {
bd80b5294a0d7d Anton Yakovlev 2021-02-09   62   struct virtio_device *vdev = 
snd->vdev;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   63   unsigned int i;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   64   int rc;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   65  
bd80b5294a0d7d Anton Yakovlev 2021-02-09  @66   virtio_cread(vdev, struct 
virtio_snd_config, chmaps, &snd->nchmaps);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   67   if (!snd->nchmaps)
bd80b5294a0d7d Anton Yakovlev 2021-02-09   68           return 0;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   69  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   70   snd->chmaps = 
devm_kcalloc(&vdev->dev, snd->nchmaps,
bd80b5294a0d7d Anton Yakovlev 2021-02-09   71                              
sizeof(*snd->chmaps), GFP_KERNEL);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   72   if (!snd->chmaps)
bd80b5294a0d7d Anton Yakovlev 2021-02-09   73           return -ENOMEM;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   74  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   75   rc = 
virtsnd_ctl_query_info(snd, VIRTIO_SND_R_CHMAP_INFO, 0,
bd80b5294a0d7d Anton Yakovlev 2021-02-09   76                               
snd->nchmaps, sizeof(*snd->chmaps),
bd80b5294a0d7d Anton Yakovlev 2021-02-09   77                               
snd->chmaps);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   78   if (rc)
bd80b5294a0d7d Anton Yakovlev 2021-02-09   79           return rc;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   80  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   81   /* Count the number of channel 
maps per each PCM device/stream. */
bd80b5294a0d7d Anton Yakovlev 2021-02-09   82   for (i = 0; i < snd->nchmaps; 
++i) {
bd80b5294a0d7d Anton Yakovlev 2021-02-09   83           struct 
virtio_snd_chmap_info *info = &snd->chmaps[i];
bd80b5294a0d7d Anton Yakovlev 2021-02-09   84           unsigned int nid = 
le32_to_cpu(info->hdr.hda_fn_nid);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   85           struct virtio_pcm *vpcm;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   86           struct 
virtio_pcm_stream *vs;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   87  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   88           vpcm = 
virtsnd_pcm_find_or_create(snd, nid);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   89           if (IS_ERR(vpcm))
bd80b5294a0d7d Anton Yakovlev 2021-02-09   90                   return 
PTR_ERR(vpcm);
bd80b5294a0d7d Anton Yakovlev 2021-02-09   91  
bd80b5294a0d7d Anton Yakovlev 2021-02-09   92           switch 
(info->direction) {
bd80b5294a0d7d Anton Yakovlev 2021-02-09   93           case 
VIRTIO_SND_D_OUTPUT:
bd80b5294a0d7d Anton Yakovlev 2021-02-09   94                   vs = 
&vpcm->streams[SNDRV_PCM_STREAM_PLAYBACK];
bd80b5294a0d7d Anton Yakovlev 2021-02-09   95                   break;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   96           case VIRTIO_SND_D_INPUT:
bd80b5294a0d7d Anton Yakovlev 2021-02-09   97                   vs = 
&vpcm->streams[SNDRV_PCM_STREAM_CAPTURE];
bd80b5294a0d7d Anton Yakovlev 2021-02-09   98                   break;
bd80b5294a0d7d Anton Yakovlev 2021-02-09   99           default:
bd80b5294a0d7d Anton Yakovlev 2021-02-09  100                   
dev_err(&vdev->dev,
bd80b5294a0d7d Anton Yakovlev 2021-02-09  101                           "chmap 
#%u: unknown direction (%u)\n", i,
bd80b5294a0d7d Anton Yakovlev 2021-02-09  102                           
info->direction);
bd80b5294a0d7d Anton Yakovlev 2021-02-09  103                   return -EINVAL;
bd80b5294a0d7d Anton Yakovlev 2021-02-09  104           }
bd80b5294a0d7d Anton Yakovlev 2021-02-09  105  
bd80b5294a0d7d Anton Yakovlev 2021-02-09  106           vs->nchmaps++;
bd80b5294a0d7d Anton Yakovlev 2021-02-09  107   }
bd80b5294a0d7d Anton Yakovlev 2021-02-09  108  
bd80b5294a0d7d Anton Yakovlev 2021-02-09  109   return 0;
bd80b5294a0d7d Anton Yakovlev 2021-02-09  110  }
bd80b5294a0d7d Anton Yakovlev 2021-02-09  111  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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