tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   34d4ddd359dbcdf6c5fb3f85a179243d7a1cb7f8
commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() 
iomem argument (as in generic implementation)
date:   4 weeks ago
config: powerpc64-randconfig-s032-20200909 (attached as .config)
compiler: powerpc-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: v0.6.2-191-g10164920-dirty
        git checkout 8f28ca6bd8211214faf717677bbffe375c2a6072
        # 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=powerpc64 

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


sparse warnings: (new ones prefixed by >>)

   arch/powerpc/platforms/44x/ppc476.c:237:17: sparse: sparse: cast removes 
address space '__iomem' of expression
>> arch/powerpc/platforms/44x/ppc476.c:242:34: sparse: sparse: incorrect type 
>> in argument 1 (different address spaces) @@     expected void const 
>> [noderef] __iomem * @@     got unsigned char [usertype] * @@
>> arch/powerpc/platforms/44x/ppc476.c:242:34: sparse:     expected void const 
>> [noderef] __iomem *
   arch/powerpc/platforms/44x/ppc476.c:242:34: sparse:     got unsigned char 
[usertype] *
   arch/powerpc/platforms/44x/ppc476.c:244:17: sparse: sparse: incorrect type 
in argument 1 (different address spaces) @@     expected void volatile 
[noderef] __iomem *addr @@     got unsigned char [usertype] *[assigned] fpga @@
   arch/powerpc/platforms/44x/ppc476.c:244:17: sparse:     expected void 
volatile [noderef] __iomem *addr
   arch/powerpc/platforms/44x/ppc476.c:244:17: sparse:     got unsigned char 
[usertype] *[assigned] fpga
--
   drivers/dma/ppc4xx/adma.c:73:1: sparse: sparse: symbol 
'ppc440spe_adma_chan_list' was not declared. Should it be static?
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:140:17: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:543:35: sparse: sparse: incorrect type in 
assignment (different base types) @@     expected unsigned int [usertype] sg1l 
@@     got restricted __le32 [usertype] @@
   drivers/dma/ppc4xx/adma.c:543:35: sparse:     expected unsigned int 
[usertype] sg1l
   drivers/dma/ppc4xx/adma.c:543:35: sparse:     got restricted __le32 
[usertype]
   drivers/dma/ppc4xx/adma.c:544:35: sparse: sparse: invalid assignment: |=
   drivers/dma/ppc4xx/adma.c:544:35: sparse:    left side has type unsigned int
   drivers/dma/ppc4xx/adma.c:544:35: sparse:    right side has type restricted 
__le32
   drivers/dma/ppc4xx/adma.c:590:23: sparse: sparse: invalid assignment: |=
   drivers/dma/ppc4xx/adma.c:590:23: sparse:    left side has type unsigned int
   drivers/dma/ppc4xx/adma.c:590:23: sparse:    right side has type restricted 
__le32
   drivers/dma/ppc4xx/adma.c:629:23: sparse: sparse: incorrect type in 
assignment (different base types) @@     expected unsigned int [usertype] @@    
 got restricted __le32 [usertype] @@
   drivers/dma/ppc4xx/adma.c:629:23: sparse:     expected unsigned int 
[usertype]
   drivers/dma/ppc4xx/adma.c:629:23: sparse:     got restricted __le32 
[usertype]
   drivers/dma/ppc4xx/adma.c:630:23: sparse: sparse: invalid assignment: |=
   drivers/dma/ppc4xx/adma.c:630:23: sparse:    left side has type unsigned int
   drivers/dma/ppc4xx/adma.c:630:23: sparse:    right side has type restricted 
__le32
   drivers/dma/ppc4xx/adma.c:655:34: sparse: sparse: incorrect type in 
assignment (different base types) @@     expected unsigned int [usertype] cnt 
@@     got restricted __le32 [usertype] @@
   drivers/dma/ppc4xx/adma.c:655:34: sparse:     expected unsigned int 
[usertype] cnt
   drivers/dma/ppc4xx/adma.c:655:34: sparse:     got restricted __le32 
[usertype]
   drivers/dma/ppc4xx/adma.c:688:38: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:688:38: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:688:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:689:38: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:689:38: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:689:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:690:38: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:690:38: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:690:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:691:39: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:691:39: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:691:39: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:738:69: sparse: sparse: Using plain integer as 
NULL pointer
   drivers/dma/ppc4xx/adma.c:1187:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct dma_regs *dma_reg 
@@     got struct dma_regs [noderef] __iomem *dma_reg @@
   drivers/dma/ppc4xx/adma.c:1187:25: sparse:     expected struct dma_regs 
*dma_reg
   drivers/dma/ppc4xx/adma.c:1187:25: sparse:     got struct dma_regs [noderef] 
__iomem *dma_reg
>> drivers/dma/ppc4xx/adma.c:1188:34: sparse: sparse: incorrect type in 
>> argument 1 (different address spaces) @@     expected void const [noderef] 
>> __iomem * @@     got unsigned int * @@
>> drivers/dma/ppc4xx/adma.c:1188:34: sparse:     expected void const [noderef] 
>> __iomem *
   drivers/dma/ppc4xx/adma.c:1188:34: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1190:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:1190:25: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:1190:25: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1191:36: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1191:36: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1191:36: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1138:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:1138:25: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:1138:25: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1147:35: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1147:35: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1147:35: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1157:49: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1157:49: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1157:49: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1159:38: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1159:38: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1159:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:911:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct dma_regs *dma_reg 
@@     got struct dma_regs [noderef] __iomem *dma_reg @@
   drivers/dma/ppc4xx/adma.c:911:25: sparse:     expected struct dma_regs 
*dma_reg
   drivers/dma/ppc4xx/adma.c:911:25: sparse:     got struct dma_regs [noderef] 
__iomem *dma_reg
   drivers/dma/ppc4xx/adma.c:912:40: sparse: sparse: incorrect type in argument 
1 (different address spaces) @@     expected void const [noderef] __iomem * @@  
   got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:912:40: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:912:40: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:929:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:974:32: sparse: sparse: incorrect type in argument 
1 (different address spaces) @@     expected void const [noderef] __iomem * @@  
   got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:974:32: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:974:32: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:979:40: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:979:40: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:979:40: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:984:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:984:25: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:984:25: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:985:34: sparse: sparse: incorrect type in argument 
1 (different address spaces) @@     expected void const [noderef] __iomem * @@  
   got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:985:34: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:985:34: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:986:34: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:986:34: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:986:34: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:993:55: sparse: sparse: incorrect type in argument 
1 (different address spaces) @@     expected void const [noderef] __iomem * @@  
   got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:993:55: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:993:55: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:995:51: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:995:51: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:995:51: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:997:51: sparse: sparse: incorrect type in argument 
1 (different address spaces) @@     expected void const [noderef] __iomem * @@  
   got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:997:51: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:997:51: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:999:46: sparse: sparse: incorrect type in argument 
2 (different address spaces) @@     expected void [noderef] __iomem * @@     
got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:999:46: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:999:46: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1008:35: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1008:35: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1008:35: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1027:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct dma_regs *dma_reg 
@@     got struct dma_regs [noderef] __iomem *dma_reg @@
   drivers/dma/ppc4xx/adma.c:1027:25: sparse:     expected struct dma_regs 
*dma_reg
   drivers/dma/ppc4xx/adma.c:1027:25: sparse:     got struct dma_regs [noderef] 
__iomem *dma_reg
>> drivers/dma/ppc4xx/adma.c:1031:31: sparse: sparse: incorrect type in 
>> argument 1 (different address spaces) @@     expected void const [noderef] 
>> __iomem * @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1031:31: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1031:31: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1031:60: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1031:60: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1031:60: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1032:31: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1032:31: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1032:31: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1032:60: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1032:60: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1032:60: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1038:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:1038:25: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:1038:25: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1039:37: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1039:37: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1039:37: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1053:48: sparse: sparse: incorrect type in 
initializer (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:1053:48: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:1053:48: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1055:25: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1055:25: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1055:25: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1062:41: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1062:41: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1062:41: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1064:39: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1064:39: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1064:39: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1065:25: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1065:25: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1065:25: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1066:33: sparse: sparse: incorrect type in 
argument 1 (different address spaces) @@     expected void const [noderef] 
__iomem * @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1066:33: sparse:     expected void const [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1066:33: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1067:22: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1067:22: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1067:22: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1080:48: sparse: sparse: incorrect type in 
initializer (different address spaces) @@     expected struct dma_regs *dma_reg 
@@     got struct dma_regs [noderef] __iomem *dma_reg @@
   drivers/dma/ppc4xx/adma.c:1080:48: sparse:     expected struct dma_regs 
*dma_reg
   drivers/dma/ppc4xx/adma.c:1080:48: sparse:     got struct dma_regs [noderef] 
__iomem *dma_reg
   drivers/dma/ppc4xx/adma.c:1090:26: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1090:26: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1090:26: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1210:25: sparse: sparse: incorrect type in 
assignment (different address spaces) @@     expected struct xor_regs *xor_reg 
@@     got struct xor_regs [noderef] __iomem *xor_reg @@
   drivers/dma/ppc4xx/adma.c:1210:25: sparse:     expected struct xor_regs 
*xor_reg
   drivers/dma/ppc4xx/adma.c:1210:25: sparse:     got struct xor_regs [noderef] 
__iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1214:30: sparse: sparse: incorrect type in 
argument 2 (different address spaces) @@     expected void [noderef] __iomem * 
@@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1214:30: sparse:     expected void [noderef] 
__iomem *
   drivers/dma/ppc4xx/adma.c:1214:30: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:2777:62: sparse: sparse: Using plain integer as 
NULL pointer
   drivers/dma/ppc4xx/adma.c:4094:14: sparse: sparse: too many warnings

# 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f28ca6bd8211214faf717677bbffe375c2a6072
git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8f28ca6bd8211214faf717677bbffe375c2a6072
vim +242 arch/powerpc/platforms/44x/ppc476.c

228d55053397e6 arch/powerpc/platforms/44x/currituck.c Tony Breeds     
2011-11-30  218  
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  219  static int board_rev = -1;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  220  static int __init ppc47x_get_board_rev(void)
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  221  {
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  222   int reg;
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  223   u8 *fpga;
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  224   struct device_node *np = NULL;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  225  
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  226   if (of_machine_is_compatible("ibm,currituck")) {
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  227           np = of_find_compatible_node(NULL, NULL, 
"ibm,currituck-fpga");
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  228           reg = 0;
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  229   } else if (of_machine_is_compatible("ibm,akebono")) {
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  230           np = of_find_compatible_node(NULL, NULL, 
"ibm,akebono-fpga");
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  231           reg = 2;
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  232   }
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  233  
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  234   if (!np)
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  235           goto fail;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  236  
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06  237   fpga = (u8 *) of_iomap(np, 0);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  238   of_node_put(np);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  239   if (!fpga)
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  240           goto fail;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  241  
2a2c74b2efcb1a arch/powerpc/platforms/44x/ppc476.c    Alistair Popple 
2014-03-06 @242   board_rev = ioread8(fpga + reg) & 0x03;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  243   pr_info("%s: Found board revision %d\n", __func__, board_rev);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  244   iounmap(fpga);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  245   return 0;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  246  
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  247  fail:
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  248   pr_info("%s: Unable to find board revision\n", __func__);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  249   return 0;
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  250  }
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  251  machine_arch_initcall(ppc47x, ppc47x_get_board_rev);
ab9a4183fddf23 arch/powerpc/platforms/44x/currituck.c Alistair Popple 
2013-05-09  252  

:::::: The code at line 242 was first introduced by commit
:::::: 2a2c74b2efcb1a0ca3fdcb5fbb96ad8de6a29177 IBM Akebono: Add the Akebono 
platform

:::::: TO: Alistair Popple <[email protected]>
:::::: CC: Benjamin Herrenschmidt <[email protected]>

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

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