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Message-ID: <202311201751.e7jX5wti-lkp@intel.com>
Date:   Mon, 20 Nov 2023 17:47:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Marco Elver <elver@...gle.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: drivers/char/tpm/tpm_ibmvtpm.c:126:9: 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:   98b1cc82c4affc16f5598d4fa14b1858671b2263
commit: 90db9dbedd26ce029f3a0f8d2cbd3a142f452408 kasan, powerpc: don't rename memintrinsics if compiler adds prefixes
date:   8 months ago
config: powerpc64-randconfig-r112-20231120 (https://download.01.org/0day-ci/archive/20231120/202311201751.e7jX5wti-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20231120/202311201751.e7jX5wti-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311201751.e7jX5wti-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/char/tpm/tpm_ibmvtpm.c:125:9: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/char/tpm/tpm_ibmvtpm.c:125:9: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/char/tpm/tpm_ibmvtpm.c:125:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const * @@     got void [noderef] __iomem *rtce_buf @@
   drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse:     expected void const *
   drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse:     got void [noderef] __iomem *rtce_buf
>> drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const * @@     got void [noderef] __iomem *rtce_buf @@
   drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse:     expected void const *
   drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse:     got void [noderef] __iomem *rtce_buf
>> drivers/char/tpm/tpm_ibmvtpm.c:126:9: 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:126:9: sparse:     expected void *p
   drivers/char/tpm/tpm_ibmvtpm.c:126:9: sparse:     got void [noderef] __iomem *rtce_buf
   drivers/char/tpm/tpm_ibmvtpm.c:229:9: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/char/tpm/tpm_ibmvtpm.c:229:9: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/char/tpm/tpm_ibmvtpm.c:229:9: 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 +126 drivers/char/tpm/tpm_ibmvtpm.c

132f7629474424 Ashley Lai        2012-08-22   94  
132f7629474424 Ashley Lai        2012-08-22   95  /**
132f7629474424 Ashley Lai        2012-08-22   96   * tpm_ibmvtpm_recv - Receive data after send
93c12f293f8798 Winkler, Tomas    2016-11-23   97   *
132f7629474424 Ashley Lai        2012-08-22   98   * @chip:	tpm chip struct
132f7629474424 Ashley Lai        2012-08-22   99   * @buf:	buffer to read
93c12f293f8798 Winkler, Tomas    2016-11-23  100   * @count:	size of buffer
132f7629474424 Ashley Lai        2012-08-22  101   *
93c12f293f8798 Winkler, Tomas    2016-11-23  102   * Return:
132f7629474424 Ashley Lai        2012-08-22  103   *	Number of bytes read
132f7629474424 Ashley Lai        2012-08-22  104   */
132f7629474424 Ashley Lai        2012-08-22  105  static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
132f7629474424 Ashley Lai        2012-08-22  106  {
9e0d39d8a6a0a8 Christophe Ricard 2016-03-31  107  	struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
132f7629474424 Ashley Lai        2012-08-22  108  	u16 len;
132f7629474424 Ashley Lai        2012-08-22  109  
132f7629474424 Ashley Lai        2012-08-22  110  	if (!ibmvtpm->rtce_buf) {
132f7629474424 Ashley Lai        2012-08-22  111  		dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n");
132f7629474424 Ashley Lai        2012-08-22  112  		return 0;
132f7629474424 Ashley Lai        2012-08-22  113  	}
132f7629474424 Ashley Lai        2012-08-22  114  
b5666502700855 Ashley Lai        2012-09-12  115  	len = ibmvtpm->res_len;
132f7629474424 Ashley Lai        2012-08-22  116  
b5666502700855 Ashley Lai        2012-09-12  117  	if (count < len) {
132f7629474424 Ashley Lai        2012-08-22  118  		dev_err(ibmvtpm->dev,
37ab03414829e5 Jason Gunthorpe   2013-09-14  119  			"Invalid size in recv: count=%zd, crq_size=%d\n",
b5666502700855 Ashley Lai        2012-09-12  120  			count, len);
132f7629474424 Ashley Lai        2012-08-22  121  		return -EIO;
132f7629474424 Ashley Lai        2012-08-22  122  	}
132f7629474424 Ashley Lai        2012-08-22  123  
132f7629474424 Ashley Lai        2012-08-22  124  	spin_lock(&ibmvtpm->rtce_lock);
b5666502700855 Ashley Lai        2012-09-12  125  	memcpy((void *)buf, (void *)ibmvtpm->rtce_buf, len);
b5666502700855 Ashley Lai        2012-09-12 @126  	memset(ibmvtpm->rtce_buf, 0, len);
b5666502700855 Ashley Lai        2012-09-12  127  	ibmvtpm->res_len = 0;
132f7629474424 Ashley Lai        2012-08-22  128  	spin_unlock(&ibmvtpm->rtce_lock);
132f7629474424 Ashley Lai        2012-08-22  129  	return len;
132f7629474424 Ashley Lai        2012-08-22  130  }
132f7629474424 Ashley Lai        2012-08-22  131  

:::::: The code at line 126 was first introduced by commit
:::::: b5666502700855a1eb1a15482005b22478b9460e drivers/char/tpm: remove tasklet and cleanup

:::::: TO: Ashley Lai <adlai@...ux.vnet.ibm.com>
:::::: CC: Kent Yoder <key@...ux.vnet.ibm.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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