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Subjectdrivers/char/tpm/tpm_ibmvtpm.c:366:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a8ad9a2434dc7967ab285437f443cae633b6fc1c
commit: 72d67229f522e3331d1eabd9f58d36ae080eb228 slab: clean up function prototypes
date: 7 weeks ago
config: powerpc64-randconfig-s032-20211228 (https://download.01.org/0day-ci/archive/20211228/202112282355.7mLEOz0w-lkp@intel.com/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: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=72d67229f522e3331d1eabd9f58d36ae080eb228
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 72d67229f522e3331d1eabd9f58d36ae080eb228
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/char/tpm/

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 >>)
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 * @@ got void [noderef] __iomem *rtce_buf @@
drivers/char/tpm/tpm_ibmvtpm.c:126:23: sparse: expected void *
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

132f7629474424 Ashley Lai 2012-08-22 336
132f7629474424 Ashley Lai 2012-08-22 337 /**
132f7629474424 Ashley Lai 2012-08-22 338 * tpm_ibmvtpm_remove - ibm vtpm remove entry point
132f7629474424 Ashley Lai 2012-08-22 339 * @vdev: vio device struct
132f7629474424 Ashley Lai 2012-08-22 340 *
93c12f293f8798 Winkler, Tomas 2016-11-23 341 * Return: Always 0.
132f7629474424 Ashley Lai 2012-08-22 342 */
386a966f5ce71a Uwe Kleine-König 2021-02-25 343 static void tpm_ibmvtpm_remove(struct vio_dev *vdev)
132f7629474424 Ashley Lai 2012-08-22 344 {
9e0d39d8a6a0a8 Christophe Ricard 2016-03-31 345 struct tpm_chip *chip = dev_get_drvdata(&vdev->dev);
9e0d39d8a6a0a8 Christophe Ricard 2016-03-31 346 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
132f7629474424 Ashley Lai 2012-08-22 347 int rc = 0;
132f7629474424 Ashley Lai 2012-08-22 348
afb5abc262e962 Jarkko Sakkinen 2014-12-12 349 tpm_chip_unregister(chip);
afb5abc262e962 Jarkko Sakkinen 2014-12-12 350
132f7629474424 Ashley Lai 2012-08-22 351 free_irq(vdev->irq, ibmvtpm);
132f7629474424 Ashley Lai 2012-08-22 352
132f7629474424 Ashley Lai 2012-08-22 353 do {
132f7629474424 Ashley Lai 2012-08-22 354 if (rc)
132f7629474424 Ashley Lai 2012-08-22 355 msleep(100);
132f7629474424 Ashley Lai 2012-08-22 356 rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
132f7629474424 Ashley Lai 2012-08-22 357 } while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
132f7629474424 Ashley Lai 2012-08-22 358
132f7629474424 Ashley Lai 2012-08-22 359 dma_unmap_single(ibmvtpm->dev, ibmvtpm->crq_dma_handle,
132f7629474424 Ashley Lai 2012-08-22 360 CRQ_RES_BUF_SIZE, DMA_BIDIRECTIONAL);
132f7629474424 Ashley Lai 2012-08-22 361 free_page((unsigned long)ibmvtpm->crq_queue.crq_addr);
132f7629474424 Ashley Lai 2012-08-22 362
132f7629474424 Ashley Lai 2012-08-22 363 if (ibmvtpm->rtce_buf) {
132f7629474424 Ashley Lai 2012-08-22 364 dma_unmap_single(ibmvtpm->dev, ibmvtpm->rtce_dma_handle,
132f7629474424 Ashley Lai 2012-08-22 365 ibmvtpm->rtce_size, DMA_BIDIRECTIONAL);
132f7629474424 Ashley Lai 2012-08-22 @366 kfree(ibmvtpm->rtce_buf);
132f7629474424 Ashley Lai 2012-08-22 367 }
132f7629474424 Ashley Lai 2012-08-22 368
132f7629474424 Ashley Lai 2012-08-22 369 kfree(ibmvtpm);
31574d321c70f6 Hon Ching \(Vicky\ Lo 2017-03-15 370) /* For tpm_ibmvtpm_get_desired_dma */
31574d321c70f6 Hon Ching \(Vicky\ Lo 2017-03-15 371) dev_set_drvdata(&vdev->dev, NULL);
132f7629474424 Ashley Lai 2012-08-22 372 }
132f7629474424 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@linux.vnet.ibm.com>
:::::: CC: Kent Yoder <key@linux.vnet.ibm.com>

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

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