tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   9123e3a74ec7b934a4a099e98af6a61c2f80bbf5
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to 
define address spaces
date:   8 weeks ago
config: riscv-randconfig-s032-20200817 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
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: v0.6.2-180-g49f7e13a-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


sparse warnings: (new ones prefixed by >>)

>> drivers/video/fbdev/sis/init.c:882:9: sparse: sparse: cast removes address 
>> space '__iomem' of expression
>> drivers/video/fbdev/sis/init.c:882:9: sparse: sparse: incorrect type in 
>> argument 2 (different address spaces) @@     expected void volatile 
>> [noderef] __iomem *addr @@     got void * @@
>> drivers/video/fbdev/sis/init.c:882:9: sparse:     expected void volatile 
>> [noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:882:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:883:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:883:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:883:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:883:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:889:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:889:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:889:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:889:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:895:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:895:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:895:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:895:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:901:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:901:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:901:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:901:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:907:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:907:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:907:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:907:9: sparse:     got void *
   drivers/video/fbdev/sis/init.c:908:16: sparse: sparse: cast removes address 
space '__iomem' of expression
>> drivers/video/fbdev/sis/init.c:908:16: sparse: sparse: incorrect type in 
>> argument 1 (different address spaces) @@     expected void const volatile 
>> [noderef] __iomem *addr @@     got void * @@
>> drivers/video/fbdev/sis/init.c:908:16: sparse:     expected void const 
>> volatile [noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:908:16: sparse:     got void *
   drivers/video/fbdev/sis/init.c:914:16: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:914:16: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const volatile 
[noderef] __iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:914:16: sparse:     expected void const 
volatile [noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:914:16: sparse:     got void *
   drivers/video/fbdev/sis/init.c:920:16: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:920:16: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const volatile 
[noderef] __iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:920:16: sparse:     expected void const 
volatile [noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:920:16: sparse:     got void *
   drivers/video/fbdev/sis/init.c:926:16: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/video/fbdev/sis/init.c:926:16: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const volatile 
[noderef] __iomem *addr @@     got void * @@
   drivers/video/fbdev/sis/init.c:926:16: sparse:     expected void const 
volatile [noderef] __iomem *addr
   drivers/video/fbdev/sis/init.c:926:16: sparse:     got void *
--
>> drivers/gpu/drm/qxl/qxl_cmd.c:153:17: sparse: sparse: cast removes address 
>> space '__iomem' of expression
>> drivers/gpu/drm/qxl/qxl_cmd.c:153:17: sparse: sparse: incorrect type in 
>> argument 2 (different address spaces) @@     expected void volatile 
>> [noderef] __iomem *addr @@     got void * @@
>> drivers/gpu/drm/qxl/qxl_cmd.c:153:17: sparse:     expected void volatile 
>> [noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_cmd.c:153:17: sparse:     got void *
   drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_cmd.c:307:9: sparse:     got void *
   drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_cmd.c:363:9: sparse:     got void *
   drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_cmd.c:368:9: sparse:     got void *
   drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: sparse: cast removes address 
space '__iomem' of expression
   drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void volatile [noderef] 
__iomem *addr @@     got void * @@
   drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse:     expected void volatile 
[noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_cmd.c:418:9: sparse:     got void *
--
>> drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse: sparse: cast removes address 
>> space '__iomem' of expression
>> drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse: sparse: incorrect type in 
>> argument 2 (different address spaces) @@     expected void volatile 
>> [noderef] __iomem *addr @@     got void * @@
>> drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse:     expected void volatile 
>> [noderef] __iomem *addr
   drivers/gpu/drm/qxl/qxl_irq.c:70:9: sparse:     got void *

# 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=670d0a4b10704667765f7d18f7592993d02783aa
git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 670d0a4b10704667765f7d18f7592993d02783aa
vim +/__iomem +882 drivers/video/fbdev/sis/init.c

^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  878  
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  879  void
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  880  
SiS_SetReg(SISIOADDRESS port, u8 index, u8 data)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  881  {
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20 @882          
outb(index, port);
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  883          
outb(data, port + 1);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  884  }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  885  
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  886  void
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  887  
SiS_SetRegByte(SISIOADDRESS port, u8 data)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  888  {
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  889          
outb(data, port);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  890  }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  891  
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  892  void
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  893  
SiS_SetRegShort(SISIOADDRESS port, u16 data)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  894  {
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  895          
outw(data, port);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  896  }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  897  
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  898  void
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  899  
SiS_SetRegLong(SISIOADDRESS port, u32 data)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  900  {
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  901          
outl(data, port);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  902  }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  903  
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  904  u8
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  905  
SiS_GetReg(SISIOADDRESS port, u8 index)
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  906  {
f48b9644ef330a drivers/video/sis/init.c Aaro Koskinen  2010-12-20  907          
outb(index, port);
2ad28472695a94 drivers/video/sis/init.c Aaro Koskinen  2010-11-19 @908          
return inb(port + 1);
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  909  }
^1da177e4c3f41 drivers/video/sis/init.c Linus Torvalds 2005-04-16  910  

:::::: The code at line 882 was first introduced by commit
:::::: f48b9644ef330a13c6bb16ca85c2efdbe7e25558 sisfb: change register I/O 
functions to use fixed size types

:::::: TO: Aaro Koskinen <[email protected]>
:::::: CC: Paul Mundt <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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