Hi Christophe,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a6afa4199d3d038fbfdff5511f7523b0e30cb774
commit: 2255411d1d0f0661d1e5acd5f6edf4e6652a345a powerpc/44x: Fix build failure with GCC 12 (unrecognized opcode: `wrteei')
date:   2 months ago
config: powerpc-randconfig-s042-20221009
compiler: powerpc-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2255411d1d0f0661d1e5acd5f6edf4e6652a345a
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 2255411d1d0f0661d1e5acd5f6edf4e6652a345a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/platforms/44x/ drivers/dma/ppc4xx/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
>> arch/powerpc/platforms/44x/warp.c:285:22: sparse: sparse: incorrect type in argument 1 (incompatible argument 1 (different address spaces)) @@     expected int ( *threadfn )( ... ) @@     got int ( * )( ... ) @@
   arch/powerpc/platforms/44x/warp.c:285:22: sparse:     expected int ( *threadfn )( ... )
   arch/powerpc/platforms/44x/warp.c:285:22: sparse:     got int ( * )( ... )
>> arch/powerpc/platforms/44x/warp.c:285:22: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void *data @@     got void [noderef] __iomem *static [assigned] [toplevel] dtm_fpga @@
   arch/powerpc/platforms/44x/warp.c:285:22: sparse:     expected void *data
   arch/powerpc/platforms/44x/warp.c:285:22: sparse:     got void [noderef] __iomem *static [assigned] [toplevel] dtm_fpga
--
>> 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:589:23: sparse: sparse: invalid assignment: |=
   drivers/dma/ppc4xx/adma.c:589:23: sparse:    left side has type unsigned int
   drivers/dma/ppc4xx/adma.c:589:23: sparse:    right side has type restricted __le32
>> drivers/dma/ppc4xx/adma.c:627:23: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] @@     got restricted __le32 [usertype] @@
   drivers/dma/ppc4xx/adma.c:627:23: sparse:     expected unsigned int [usertype]
   drivers/dma/ppc4xx/adma.c:627:23: sparse:     got restricted __le32 [usertype]
   drivers/dma/ppc4xx/adma.c:628:23: sparse: sparse: invalid assignment: |=
   drivers/dma/ppc4xx/adma.c:628:23: sparse:    left side has type unsigned int
   drivers/dma/ppc4xx/adma.c:628:23: sparse:    right side has type restricted __le32
>> drivers/dma/ppc4xx/adma.c:653:34: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] cnt @@     got restricted __le32 [usertype] @@
   drivers/dma/ppc4xx/adma.c:653:34: sparse:     expected unsigned int [usertype] cnt
   drivers/dma/ppc4xx/adma.c:653:34: sparse:     got restricted __le32 [usertype]
>> drivers/dma/ppc4xx/adma.c:686:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:686:38: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:686:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:687:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:687:38: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:687:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:688:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:688:38: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:688:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:689:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:689:39: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:689:39: sparse:     got unsigned int *
>> drivers/dma/ppc4xx/adma.c:734:17: sparse: sparse: Using plain integer as NULL pointer
>> drivers/dma/ppc4xx/adma.c:1185:25: 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:1185:25: sparse:     expected struct dma_regs *dma_reg
   drivers/dma/ppc4xx/adma.c:1185:25: sparse:     got struct dma_regs [noderef] __iomem *dma_reg
>> drivers/dma/ppc4xx/adma.c:1186:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1186:34: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1186:34: sparse:     got unsigned int *
>> drivers/dma/ppc4xx/adma.c:1188:25: 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:1188:25: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:1188:25: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
>> drivers/dma/ppc4xx/adma.c:1189:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1189:36: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1189:36: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1136:25: 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:1136:25: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:1136:25: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1145:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1145:35: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1145:35: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1155:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1155:49: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1155:49: sparse:     got unsigned int *
>> drivers/dma/ppc4xx/adma.c:1157:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1157:38: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1157:38: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:909:25: 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:909:25: sparse:     expected struct dma_regs *dma_reg
   drivers/dma/ppc4xx/adma.c:909:25: sparse:     got struct dma_regs [noderef] __iomem *dma_reg
   drivers/dma/ppc4xx/adma.c:910:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:910:40: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:910:40: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:927:37: sparse: sparse: cast to restricted __le32
   drivers/dma/ppc4xx/adma.c:972:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:972:32: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:972:32: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:977:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:977:40: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:977:40: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:982:25: 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:982:25: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:982:25: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:983:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:983:34: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:983:34: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:984:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:984:34: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:984:34: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:991:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:991:55: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:991:55: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:993:51: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:993:51: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:993:51: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:995:51: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:995:51: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:995:51: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:997:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:997:46: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:997:46: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1006:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1006:35: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1006:35: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1025:25: 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:1025:25: sparse:     expected struct dma_regs *dma_reg
   drivers/dma/ppc4xx/adma.c:1025:25: sparse:     got struct dma_regs [noderef] __iomem *dma_reg
>> drivers/dma/ppc4xx/adma.c:1029:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1029:31: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1029:31: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1029:60: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1029:60: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1029:60: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1030:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1030:31: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1030:31: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1030:60: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got unsigned short * @@
   drivers/dma/ppc4xx/adma.c:1030:60: sparse:     expected void const volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1030:60: sparse:     got unsigned short *
   drivers/dma/ppc4xx/adma.c:1036:25: 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:1036:25: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:1036:25: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1037:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1037:37: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1037:37: sparse:     got unsigned int *
>> drivers/dma/ppc4xx/adma.c:1051:48: 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:1051:48: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:1051:48: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1053:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1053:25: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1053:25: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1060:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1060:41: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1060:41: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1062:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1062:39: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1062:39: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1063:25: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1063:25: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1063:25: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1064:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1064:33: sparse:     expected void const [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1064:33: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1065:22: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1065:22: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1065:22: sparse:     got unsigned int *
>> drivers/dma/ppc4xx/adma.c:1078:48: 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:1078:48: sparse:     expected struct dma_regs *dma_reg
   drivers/dma/ppc4xx/adma.c:1078:48: sparse:     got struct dma_regs [noderef] __iomem *dma_reg
   drivers/dma/ppc4xx/adma.c:1088:26: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1088:26: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1088:26: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:1208:25: 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:1208:25: sparse:     expected struct xor_regs *xor_reg
   drivers/dma/ppc4xx/adma.c:1208:25: sparse:     got struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:1212:30: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got unsigned int * @@
   drivers/dma/ppc4xx/adma.c:1212:30: sparse:     expected void [noderef] __iomem *addr
   drivers/dma/ppc4xx/adma.c:1212:30: sparse:     got unsigned int *
   drivers/dma/ppc4xx/adma.c:2775:62: sparse: sparse: Using plain integer as NULL pointer
>> drivers/dma/ppc4xx/adma.c:4091:14: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *regs @@     got void [noderef] __iomem * @@
   drivers/dma/ppc4xx/adma.c:4091:14: sparse:     expected void *regs
   drivers/dma/ppc4xx/adma.c:4091:14: sparse:     got void [noderef] __iomem *
>> drivers/dma/ppc4xx/adma.c:4099:31: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct xor_regs [noderef] __iomem *xor_reg @@     got void *regs @@
   drivers/dma/ppc4xx/adma.c:4099:31: sparse:     expected struct xor_regs [noderef] __iomem *xor_reg
   drivers/dma/ppc4xx/adma.c:4099:31: sparse:     got void *regs
>> drivers/dma/ppc4xx/adma.c:4106:31: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct dma_regs [noderef] __iomem *dma_reg @@     got void *regs @@
   drivers/dma/ppc4xx/adma.c:4106:31: sparse:     expected struct dma_regs [noderef] __iomem *dma_reg
   drivers/dma/ppc4xx/adma.c:4106:31: sparse:     got void *regs

vim +285 arch/powerpc/platforms/44x/warp.c

f9bdedb2c5f295 Sean MacLennan 2008-01-22  267  
f9bdedb2c5f295 Sean MacLennan 2008-01-22  268  static int __init pika_dtm_start(void)
f9bdedb2c5f295 Sean MacLennan 2008-01-22  269  {
f9bdedb2c5f295 Sean MacLennan 2008-01-22  270  	struct task_struct *dtm_thread;
f9bdedb2c5f295 Sean MacLennan 2008-01-22  271  	struct device_node *np;
f9bdedb2c5f295 Sean MacLennan 2008-01-22  272  
f9bdedb2c5f295 Sean MacLennan 2008-01-22  273  	np = of_find_compatible_node(NULL, NULL, "pika,fpga");
f9bdedb2c5f295 Sean MacLennan 2008-01-22  274  	if (np == NULL)
f9bdedb2c5f295 Sean MacLennan 2008-01-22  275  		return -ENOENT;
f9bdedb2c5f295 Sean MacLennan 2008-01-22  276  
4ebef31fa6e013 Sean MacLennan 2008-05-20  277  	dtm_fpga = of_iomap(np, 0);
f9bdedb2c5f295 Sean MacLennan 2008-01-22  278  	of_node_put(np);
4ebef31fa6e013 Sean MacLennan 2008-05-20  279  	if (dtm_fpga == NULL)
f9bdedb2c5f295 Sean MacLennan 2008-01-22  280  		return -ENOENT;
f9bdedb2c5f295 Sean MacLennan 2008-01-22  281  
805e324b7fbddf Sean MacLennan 2009-04-06  282  	/* Must get post info before thread starts. */
805e324b7fbddf Sean MacLennan 2009-04-06  283  	warp_post_info();
805e324b7fbddf Sean MacLennan 2009-04-06  284  
4ebef31fa6e013 Sean MacLennan 2008-05-20 @285  	dtm_thread = kthread_run(pika_dtm_thread, dtm_fpga, "pika-dtm");
f9bdedb2c5f295 Sean MacLennan 2008-01-22  286  	if (IS_ERR(dtm_thread)) {
4ebef31fa6e013 Sean MacLennan 2008-05-20  287  		iounmap(dtm_fpga);
f9bdedb2c5f295 Sean MacLennan 2008-01-22  288  		return PTR_ERR(dtm_thread);
f9bdedb2c5f295 Sean MacLennan 2008-01-22  289  	}
f9bdedb2c5f295 Sean MacLennan 2008-01-22  290  
f9bdedb2c5f295 Sean MacLennan 2008-01-22  291  	return 0;
f9bdedb2c5f295 Sean MacLennan 2008-01-22  292  }
4ebef31fa6e013 Sean MacLennan 2008-05-20  293  machine_late_initcall(warp, pika_dtm_start);
4ebef31fa6e013 Sean MacLennan 2008-05-20  294  

:::::: The code at line 285 was first introduced by commit
:::::: 4ebef31fa6e013e5cd3d4522e6018eb6d55046be [POWERPC] PIKA Warp: Update platform code to support Rev B boards

:::::: TO: Sean MacLennan <smaclennan@pikatech.com>
:::::: CC: Josh Boyer <jwboyer@linux.vnet.ibm.com>

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