[kbuild-all] [linux-next:master 9509/9522] drivers/char/tpm/tpm_ibmvtpm.c:366:30: sparse: sparse: incorrect type in argument 1 (different address spaces)

Sunday, 22 August 2021


tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   86ed57fd8c93fdfaabb4f58e78455180fa7d8a84
commit: a389ba5e5df26c9b904434677fd00cde641e4745 [9509/9522] slab: clean up function
declarations
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 11.2.0
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: v0.6.3-348-gf0e6938b-dirty
        #
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
        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 a389ba5e5df26c9b904434677fd00cde641e4745
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com&gt;


sparse warnings: (new ones prefixed by >>)
   drivers/char/tpm/tpm_ibmvtpm.c:125:30: sparse: sparse: cast removes address space
'__iomem' of expression
   drivers/char/tpm/tpm_ibmvtpm.c:126:23: sparse: sparse: incorrect type in argument 1
(different address spaces) @@     expected void *p @@     got void [noderef] __iomem
*rtce_buf @@
   drivers/char/tpm/tpm_ibmvtpm.c:126:23: sparse:     expected void *p
   drivers/char/tpm/tpm_ibmvtpm.c:126:23: sparse:     got void [noderef] __iomem
*rtce_buf
   drivers/char/tpm/tpm_ibmvtpm.c:229:17: sparse: sparse: cast removes address space
'__iomem' of expression
...
> drivers/char/tpm/tpm_ibmvtpm.c:366:30: sparse: sparse: incorrect
type in argument 1 (different address spaces) @@     expected void const *objp @@     got
void [noderef] __iomem *rtce_buf @@    drivers/char/tpm/tpm_ibmvtpm.c:366:30:
sparse:     expected void const *objp
   drivers/char/tpm/tpm_ibmvtpm.c:366:30: sparse:     got void [noderef] __iomem
*rtce_buf
   drivers/char/tpm/tpm_ibmvtpm.c:525:43: sparse: sparse: incorrect type in assignment
(different address spaces) @@     expected void [noderef] __iomem *rtce_buf @@     got
void * @@
   drivers/char/tpm/tpm_ibmvtpm.c:525:43: sparse:     expected void [noderef] __iomem
*rtce_buf
   drivers/char/tpm/tpm_ibmvtpm.c:525:43: sparse:     got void *
   drivers/char/tpm/tpm_ibmvtpm.c:532:52: sparse: sparse: incorrect type in argument 2
(different address spaces) @@     expected void *ptr @@     got void [noderef] __iomem
*rtce_buf @@
   drivers/char/tpm/tpm_ibmvtpm.c:532:52: sparse:     expected void *ptr
   drivers/char/tpm/tpm_ibmvtpm.c:532:52: sparse:     got void [noderef] __iomem
*rtce_buf
   drivers/char/tpm/tpm_ibmvtpm.c:538:46: sparse: sparse: incorrect type in argument 1
(different address spaces) @@     expected void const *objp @@     got void [noderef]
__iomem *rtce_buf @@
   drivers/char/tpm/tpm_ibmvtpm.c:538:46: sparse:     expected void const *objp
   drivers/char/tpm/tpm_ibmvtpm.c:538:46: sparse:     got void [noderef] __iomem
*rtce_buf

vim +366 drivers/char/tpm/tpm_ibmvtpm.c

132f76294744244 Ashley Lai             2012-08-22  336  
132f76294744244 Ashley Lai             2012-08-22  337  /**
132f76294744244 Ashley Lai             2012-08-22  338   * tpm_ibmvtpm_remove - ibm vtpm
remove entry point
132f76294744244 Ashley Lai             2012-08-22  339   * @vdev:	vio device struct
132f76294744244 Ashley Lai             2012-08-22  340   *
93c12f293f87982 Winkler, Tomas         2016-11-23  341   * Return: Always 0.
132f76294744244 Ashley Lai             2012-08-22  342   */
386a966f5ce71a0 Uwe Kleine-König       2021-02-25  343  static void
tpm_ibmvtpm_remove(struct vio_dev *vdev)
132f76294744244 Ashley Lai             2012-08-22  344  {
9e0d39d8a6a0a88 Christophe Ricard      2016-03-31  345  	struct tpm_chip *chip =
dev_get_drvdata(&vdev->dev);
9e0d39d8a6a0a88 Christophe Ricard      2016-03-31  346  	struct ibmvtpm_dev *ibmvtpm =
dev_get_drvdata(&chip->dev);
132f76294744244 Ashley Lai             2012-08-22  347  	int rc = 0;
132f76294744244 Ashley Lai             2012-08-22  348  
afb5abc262e9620 Jarkko Sakkinen        2014-12-12  349  	tpm_chip_unregister(chip);
afb5abc262e9620 Jarkko Sakkinen        2014-12-12  350  
132f76294744244 Ashley Lai             2012-08-22  351  	free_irq(vdev->irq, ibmvtpm);
132f76294744244 Ashley Lai             2012-08-22  352  
132f76294744244 Ashley Lai             2012-08-22  353  	do {
132f76294744244 Ashley Lai             2012-08-22  354  		if (rc)
132f76294744244 Ashley Lai             2012-08-22  355  			msleep(100);
132f76294744244 Ashley Lai             2012-08-22  356  		rc =
plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
132f76294744244 Ashley Lai             2012-08-22  357  	} while (rc == H_BUSY ||
H_IS_LONG_BUSY(rc));
132f76294744244 Ashley Lai             2012-08-22  358  
132f76294744244 Ashley Lai             2012-08-22  359  	dma_unmap_single(ibmvtpm->dev,
ibmvtpm->crq_dma_handle,
132f76294744244 Ashley Lai             2012-08-22  360  			 CRQ_RES_BUF_SIZE,
DMA_BIDIRECTIONAL);
132f76294744244 Ashley Lai             2012-08-22  361  	free_page((unsigned
long)ibmvtpm->crq_queue.crq_addr);
132f76294744244 Ashley Lai             2012-08-22  362  
132f76294744244 Ashley Lai             2012-08-22  363  	if (ibmvtpm->rtce_buf) {
132f76294744244 Ashley Lai             2012-08-22  364 
		dma_unmap_single(ibmvtpm->dev, ibmvtpm->rtce_dma_handle,
132f76294744244 Ashley Lai             2012-08-22  365  				 ibmvtpm->rtce_size,
DMA_BIDIRECTIONAL);
132f76294744244 Ashley Lai             2012-08-22 @366  		kfree(ibmvtpm->rtce_buf);
132f76294744244 Ashley Lai             2012-08-22  367  	}
132f76294744244 Ashley Lai             2012-08-22  368  
132f76294744244 Ashley Lai             2012-08-22  369  	kfree(ibmvtpm);
31574d321c70f6d Hon Ching \(Vicky\  Lo 2017-03-15  370) 	/* For
tpm_ibmvtpm_get_desired_dma */
31574d321c70f6d Hon Ching \(Vicky\  Lo 2017-03-15  371)
	dev_set_drvdata(&vdev->dev, NULL);
132f76294744244 Ashley Lai             2012-08-22  372  }
132f76294744244 Ashley Lai             2012-08-22  373  

:::::: The code at line 366 was first introduced by commit
:::::: 132f7629474424418a5cdd666796ad3cfa4dc0c5 drivers/char/tpm: Add new device driver to
support IBM vTPM

:::::: TO: Ashley Lai <adlai(a)linux.vnet.ibm.com&gt;
:::::: CC: Kent Yoder <key(a)linux.vnet.ibm.com&gt;

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

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[kbuild-all] [linux-next:master 9509/9522] drivers/char/tpm/tpm_ibmvtpm.c:366:30: sparse: sparse: incorrect type in argument 1 (different address spaces)