[sound:for-next 92/92] sound/isa/sc6000.c:534:35: sparse: sparse: incorrect type in initializer (different address spaces)

* [sound:for-next 92/92] sound/isa/sc6000.c:534:35: sparse: sparse: incorrect type in initializer (different address spaces)
@ 2021-07-20 21:47 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-07-20 21:47 UTC (permalink / raw)
  To: Takashi Iwai; +Cc: alsa-devel, kbuild-all

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
head:   9b7843d1e125dca0d6ed0af9e8dd709d41eb25ad
commit: 9b7843d1e125dca0d6ed0af9e8dd709d41eb25ad [92/92] ALSA: sc6000: Assign vport directly on card's private_data
config: x86_64-randconfig-s021-20210718 (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=9b7843d1e125dca0d6ed0af9e8dd709d41eb25ad
        git remote add sound https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
        git fetch --no-tags sound for-next
        git checkout 9b7843d1e125dca0d6ed0af9e8dd709d41eb25ad
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> sound/isa/sc6000.c:534:35: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char [noderef] __iomem *vport @@     got void *private_data @@
   sound/isa/sc6000.c:534:35: sparse:     expected char [noderef] __iomem *vport
   sound/isa/sc6000.c:534:35: sparse:     got void *private_data
>> sound/isa/sc6000.c:585:28: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *private_data @@     got char [noderef] __iomem *[assigned] vport @@
   sound/isa/sc6000.c:585:28: sparse:     expected void *private_data
   sound/isa/sc6000.c:585:28: sparse:     got char [noderef] __iomem *[assigned] vport

vim +534 sound/isa/sc6000.c

   531	
   532	static void snd_sc6000_free(struct snd_card *card)
   533	{
 > 534		char __iomem *vport = card->private_data;
   535	
   536		if (vport)
   537			sc6000_setup_board(vport, 0);
   538	}
   539	
   540	static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
   541	{
   542		static const int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
   543		static const int possible_dmas[] = { 1, 3, 0, -1 };
   544		int err;
   545		int xirq = irq[dev];
   546		int xdma = dma[dev];
   547		struct snd_card *card;
   548		struct snd_wss *chip;
   549		struct snd_opl3 *opl3;
   550		char __iomem *vport;
   551		char __iomem *vmss_port;
   552	
   553		err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
   554					0, &card);
   555		if (err < 0)
   556			return err;
   557	
   558		if (xirq == SNDRV_AUTO_IRQ) {
   559			xirq = snd_legacy_find_free_irq(possible_irqs);
   560			if (xirq < 0) {
   561				snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
   562				return -EBUSY;
   563			}
   564		}
   565	
   566		if (xdma == SNDRV_AUTO_DMA) {
   567			xdma = snd_legacy_find_free_dma(possible_dmas);
   568			if (xdma < 0) {
   569				snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
   570				return -EBUSY;
   571			}
   572		}
   573	
   574		if (!devm_request_region(devptr, port[dev], 0x10, DRV_NAME)) {
   575			snd_printk(KERN_ERR PFX
   576				   "I/O port region is already in use.\n");
   577			return -EBUSY;
   578		}
   579		vport = devm_ioport_map(devptr, port[dev], 0x10);
   580		if (!vport) {
   581			snd_printk(KERN_ERR PFX
   582				   "I/O port cannot be iomapped.\n");
   583			return -EBUSY;
   584		}
 > 585		card->private_data = vport;
   586	
   587		/* to make it marked as used */
   588		if (!devm_request_region(devptr, mss_port[dev], 4, DRV_NAME)) {
   589			snd_printk(KERN_ERR PFX
   590				   "SC-6000 port I/O port region is already in use.\n");
   591			return -EBUSY;
   592		}
   593		vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
   594		if (!vmss_port) {
   595			snd_printk(KERN_ERR PFX
   596				   "MSS port I/O cannot be iomapped.\n");
   597			return -EBUSY;
   598		}
   599	
   600		snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
   601			   port[dev], xirq, xdma,
   602			   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
   603	
   604		err = sc6000_init_board(vport, vmss_port, dev);
   605		if (err < 0)
   606			return err;
   607		card->private_free = snd_sc6000_free;
   608	
   609		err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
   610				     WSS_HW_DETECT, 0, &chip);
   611		if (err < 0)
   612			return err;
   613	
   614		err = snd_wss_pcm(chip, 0);
   615		if (err < 0) {
   616			snd_printk(KERN_ERR PFX
   617				   "error creating new WSS PCM device\n");
   618			return err;
   619		}
   620		err = snd_wss_mixer(chip);
   621		if (err < 0) {
   622			snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
   623			return err;
   624		}
   625		err = snd_sc6000_mixer(chip);
   626		if (err < 0) {
   627			snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
   628			return err;
   629		}
   630		if (snd_opl3_create(card,
   631				    0x388, 0x388 + 2,
   632				    OPL3_HW_AUTO, 0, &opl3) < 0) {
   633			snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
   634				   0x388, 0x388 + 2);
   635		} else {
   636			err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
   637			if (err < 0)
   638				return err;
   639		}
   640	
   641		if (mpu_port[dev] != SNDRV_AUTO_PORT) {
   642			if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
   643				mpu_irq[dev] = -1;
   644			if (snd_mpu401_uart_new(card, 0,
   645						MPU401_HW_MPU401,
   646						mpu_port[dev], 0,
   647						mpu_irq[dev], NULL) < 0)
   648				snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
   649						mpu_port[dev]);
   650		}
   651	
   652		strcpy(card->driver, DRV_NAME);
   653		strcpy(card->shortname, "SC-6000");
   654		sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
   655			mss_port[dev], xirq, xdma);
   656	
   657		err = snd_card_register(card);
   658		if (err < 0)
   659			return err;
   660	
   661		dev_set_drvdata(devptr, card);
   662		return 0;
   663	}
   664	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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