[alsa-devel] [PATCH v3 2/4] ALSA pcm: allow non constant snd_pcm_chmap_elem

kbuild test robot lkp at intel.com
Mon Dec 19 17:31:31 CET 2016


Hi Arnaud,

[auto build test WARNING on asoc/for-next]
[also build test WARNING on v4.9 next-20161219]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arnaud-Pouliquen/Generic-HDMI-codec-Add-channel-mapping-control/20161219-235923
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: x86_64-acpi-redef (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   sound/pci/atiixp.c: In function 'snd_atiixp_pcm_new':
>> sound/pci/atiixp.c:1298:10: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
             snd_pcm_alt_chmaps, chip->max_channels, 0,
             ^~~~~~~~~~~~~~~~~~
   In file included from sound/pci/atiixp.c:31:0:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
--
   sound/pci/cmipci.c: In function 'snd_cmipci_pcm_spdif_new':
>> sound/pci/cmipci.c:1966:10: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
             snd_pcm_alt_chmaps, cm->max_channels, 0,
             ^~~~~~~~~~~~~~~~~~
   In file included from sound/pci/cmipci.c:35:0:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
--
   sound/pci/ens1370.c: In function 'snd_ensoniq_pcm':
>> sound/pci/ens1370.c:1297:10: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
             surround_map, 2, 0, NULL);
             ^~~~~~~~~~~~
   In file included from sound/pci/ens1370.c:41:0:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
   sound/pci/ens1370.c: In function 'snd_ensoniq_pcm2':
   sound/pci/ens1370.c:1329:10: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
             snd_pcm_std_chmaps, 2, 0, NULL);
             ^~~~~~~~~~~~~~~~~~
   In file included from sound/pci/ens1370.c:41:0:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
--
   In file included from sound/pci/au88x0/au8810.c:9:0:
   sound/pci/au88x0/au88x0_pcm.c: In function 'snd_vortex_new_pcm':
>> sound/pci/au88x0/au88x0_pcm.c:659:11: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
              snd_pcm_std_chmaps,
              ^~~~~~~~~~~~~~~~~~
   In file included from sound/pci/au88x0/au88x0.h:23:0,
                    from sound/pci/au88x0/au8810.c:2:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
   In file included from sound/pci/au88x0/au8810.c:9:0:
   sound/pci/au88x0/au88x0_pcm.c:665:11: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
              snd_pcm_std_chmaps, 2, 0, NULL);
              ^~~~~~~~~~~~~~~~~~
   In file included from sound/pci/au88x0/au88x0.h:23:0,
                    from sound/pci/au88x0/au8810.c:2:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~
--
   sound/pci/ca0106/ca0106_main.c: In function 'snd_ca0106_pcm':
>> sound/pci/ca0106/ca0106_main.c:1424:63: warning: passing argument 3 of 'snd_pcm_add_chmap_ctls' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
                                                                  ^~~
   In file included from sound/pci/ca0106/ca0106_main.c:147:0:
   include/sound/pcm.h:1389:5: note: expected 'struct snd_pcm_chmap_elem *' but argument is of type 'const struct snd_pcm_chmap_elem *'
    int snd_pcm_add_chmap_ctls(struct snd_pcm *pcm, int stream,
        ^~~~~~~~~~~~~~~~~~~~~~

vim +1298 sound/pci/atiixp.c

^1da177e Linus Torvalds 2005-04-16  1282  	/* PCM #0: analog I/O */
74ee4ff1 Takashi Iwai   2005-11-17  1283  	err = snd_pcm_new(chip->card, "ATI IXP AC97",
74ee4ff1 Takashi Iwai   2005-11-17  1284  			  ATI_PCMDEV_ANALOG, 1, 1, &pcm);
^1da177e Linus Torvalds 2005-04-16  1285  	if (err < 0)
^1da177e Linus Torvalds 2005-04-16  1286  		return err;
^1da177e Linus Torvalds 2005-04-16  1287  	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
^1da177e Linus Torvalds 2005-04-16  1288  	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
^1da177e Linus Torvalds 2005-04-16  1289  	pcm->private_data = chip;
^1da177e Linus Torvalds 2005-04-16  1290  	strcpy(pcm->name, "ATI IXP AC97");
^1da177e Linus Torvalds 2005-04-16  1291  	chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;
^1da177e Linus Torvalds 2005-04-16  1292  
^1da177e Linus Torvalds 2005-04-16  1293  	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
74ee4ff1 Takashi Iwai   2005-11-17  1294  					      snd_dma_pci_data(chip->pci),
74ee4ff1 Takashi Iwai   2005-11-17  1295  					      64*1024, 128*1024);
^1da177e Linus Torvalds 2005-04-16  1296  
e36e3b86 Takashi Iwai   2012-08-03  1297  	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
e36e3b86 Takashi Iwai   2012-08-03 @1298  				     snd_pcm_alt_chmaps, chip->max_channels, 0,
e36e3b86 Takashi Iwai   2012-08-03  1299  				     &chmap);
e36e3b86 Takashi Iwai   2012-08-03  1300  	if (err < 0)
e36e3b86 Takashi Iwai   2012-08-03  1301  		return err;
e36e3b86 Takashi Iwai   2012-08-03  1302  	chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
e36e3b86 Takashi Iwai   2012-08-03  1303  	chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
e36e3b86 Takashi Iwai   2012-08-03  1304  
^1da177e Linus Torvalds 2005-04-16  1305  	/* no SPDIF support on codec? */
^1da177e Linus Torvalds 2005-04-16  1306  	if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)

:::::: The code at line 1298 was first introduced by commit
:::::: e36e3b86c78cee9c7435eb33e0ef8a788193e812 ALSA: Implement channel maps for standard onboard AC97 drivers

:::::: TO: Takashi Iwai <tiwai at suse.de>
:::::: CC: Takashi Iwai <tiwai at suse.de>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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