linux-kernel - drivers/scsi/vmw_pvscsi.c:212:39: sparse: sparse: incorrect type in argument 2 (different address spaces)

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Date:   Sun, 28 Jun 2020 11:38:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/scsi/vmw_pvscsi.c:212:39: sparse: sparse: incorrect type in
 argument 2 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   916a3b0fc1206f7e7ae8d00a21a3114b1dc67794
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   9 days ago
config: x86_64-randconfig-s031-20200628 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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


sparse warnings: (new ones prefixed by >>)

>> drivers/scsi/vmw_pvscsi.c:212:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got char * @@
>> drivers/scsi/vmw_pvscsi.c:212:39: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/scsi/vmw_pvscsi.c:212:39: sparse:     got char *
>> drivers/scsi/vmw_pvscsi.c:217:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got char * @@
>> drivers/scsi/vmw_pvscsi.c:217:40: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/scsi/vmw_pvscsi.c:217:40: sparse:     got char *
>> drivers/scsi/vmw_pvscsi.c:1224:50: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem * @@     got char *mmioBase @@
>> drivers/scsi/vmw_pvscsi.c:1224:50: sparse:     expected void [noderef] __iomem *
   drivers/scsi/vmw_pvscsi.c:1224:50: sparse:     got char *mmioBase
>> drivers/scsi/vmw_pvscsi.c:1403:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected char *mmioBase @@     got void [noderef] __iomem * @@
   drivers/scsi/vmw_pvscsi.c:1403:27: sparse:     expected char *mmioBase
>> drivers/scsi/vmw_pvscsi.c:1403:27: sparse:     got void [noderef] __iomem *

vim +212 drivers/scsi/vmw_pvscsi.c

851b164231d111 Alok Kataria 2009-10-13  208  
851b164231d111 Alok Kataria 2009-10-13  209  static void pvscsi_reg_write(const struct pvscsi_adapter *adapter,
851b164231d111 Alok Kataria 2009-10-13  210  			     u32 offset, u32 val)
851b164231d111 Alok Kataria 2009-10-13  211  {
851b164231d111 Alok Kataria 2009-10-13 @212  	writel(val, adapter->mmioBase + offset);
851b164231d111 Alok Kataria 2009-10-13  213  }
851b164231d111 Alok Kataria 2009-10-13  214  
851b164231d111 Alok Kataria 2009-10-13  215  static u32 pvscsi_reg_read(const struct pvscsi_adapter *adapter, u32 offset)
851b164231d111 Alok Kataria 2009-10-13  216  {
851b164231d111 Alok Kataria 2009-10-13 @217  	return readl(adapter->mmioBase + offset);
851b164231d111 Alok Kataria 2009-10-13  218  }
851b164231d111 Alok Kataria 2009-10-13  219  

:::::: The code at line 212 was first introduced by commit
:::::: 851b164231d1117673aa44c00c7622e48b7dfcf4 [SCSI] vmw_pvscsi: SCSI driver for VMware's virtual HBA.

:::::: TO: Alok Kataria <akataria@...are.com>
:::::: CC: James Bottomley <James.Bottomley@...e.de>

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

Download attachment ".config.gz" of type "application/gzip" (34668 bytes)