drivers/dma/ppc4xx/adma.c:1188:34: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sat Oct 17 2020 - 01:39:58 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 071a0578b0ce0b0e543d1e38ee6926b9cc21c198
commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() iomem argument (as in generic implementation)
date: 9 weeks ago
config: powerpc-randconfig-s032-20201017 (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: v0.6.3-rc1-2-g368fd9ce-dirty
# 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
# 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=powerpc

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

"sparse warnings: (new ones prefixed by >>)"
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

vim +1188 drivers/dma/ppc4xx/adma.c

12458ea06efd7b Anatolij Gustschin 2009-12-11 1014
12458ea06efd7b Anatolij Gustschin 2009-12-11 1015 /**
12458ea06efd7b Anatolij Gustschin 2009-12-11 1016 * ppc440spe_chan_is_busy - get the channel status
12458ea06efd7b Anatolij Gustschin 2009-12-11 1017 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1018 static int ppc440spe_chan_is_busy(struct ppc440spe_adma_chan *chan)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1019 {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1020 struct dma_regs *dma_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1021 struct xor_regs *xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1022 int busy = 0;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1023
12458ea06efd7b Anatolij Gustschin 2009-12-11 1024 switch (chan->device->id) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1025 case PPC440SPE_DMA0_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1026 case PPC440SPE_DMA1_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1027 dma_reg = chan->device->dma_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1028 /* if command FIFO's head and tail pointers are equal and
12458ea06efd7b Anatolij Gustschin 2009-12-11 1029 * status tail is the same as command, then channel is free
12458ea06efd7b Anatolij Gustschin 2009-12-11 1030 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 @1031 if (ioread16(&dma_reg->cpfhp) != ioread16(&dma_reg->cpftp) ||
12458ea06efd7b Anatolij Gustschin 2009-12-11 1032 ioread16(&dma_reg->cpftp) != ioread16(&dma_reg->csftp))
12458ea06efd7b Anatolij Gustschin 2009-12-11 1033 busy = 1;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1034 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1035 case PPC440SPE_XOR_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1036 /* use the special status bit for the XORcore
12458ea06efd7b Anatolij Gustschin 2009-12-11 1037 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1038 xor_reg = chan->device->xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1039 busy = (ioread32be(&xor_reg->sr) & XOR_SR_XCP_BIT) ? 1 : 0;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1040 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1041 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1042
12458ea06efd7b Anatolij Gustschin 2009-12-11 1043 return busy;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1044 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1045
12458ea06efd7b Anatolij Gustschin 2009-12-11 1046 /**
12458ea06efd7b Anatolij Gustschin 2009-12-11 1047 * ppc440spe_chan_set_first_xor_descriptor - init XORcore chain
12458ea06efd7b Anatolij Gustschin 2009-12-11 1048 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1049 static void ppc440spe_chan_set_first_xor_descriptor(
12458ea06efd7b Anatolij Gustschin 2009-12-11 1050 struct ppc440spe_adma_chan *chan,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1051 struct ppc440spe_adma_desc_slot *next_desc)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1052 {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1053 struct xor_regs *xor_reg = chan->device->xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1054
12458ea06efd7b Anatolij Gustschin 2009-12-11 1055 if (ioread32be(&xor_reg->sr) & XOR_SR_XCP_BIT)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1056 printk(KERN_INFO "%s: Warn: XORcore is running "
12458ea06efd7b Anatolij Gustschin 2009-12-11 1057 "when try to set the first CDB!\n",
12458ea06efd7b Anatolij Gustschin 2009-12-11 1058 __func__);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1059
12458ea06efd7b Anatolij Gustschin 2009-12-11 1060 xor_last_submit = xor_last_linked = next_desc;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1061
12458ea06efd7b Anatolij Gustschin 2009-12-11 1062 iowrite32be(XOR_CRSR_64BA_BIT, &xor_reg->crsr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1063
12458ea06efd7b Anatolij Gustschin 2009-12-11 1064 iowrite32be(next_desc->phys, &xor_reg->cblalr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1065 iowrite32be(0, &xor_reg->cblahr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1066 iowrite32be(ioread32be(&xor_reg->cbcr) | XOR_CBCR_LNK_BIT,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1067 &xor_reg->cbcr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1068
12458ea06efd7b Anatolij Gustschin 2009-12-11 1069 chan->hw_chain_inited = 1;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1070 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1071
12458ea06efd7b Anatolij Gustschin 2009-12-11 1072 /**
12458ea06efd7b Anatolij Gustschin 2009-12-11 1073 * ppc440spe_dma_put_desc - put DMA0,1 descriptor to FIFO.
12458ea06efd7b Anatolij Gustschin 2009-12-11 1074 * called with irqs disabled
12458ea06efd7b Anatolij Gustschin 2009-12-11 1075 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1076 static void ppc440spe_dma_put_desc(struct ppc440spe_adma_chan *chan,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1077 struct ppc440spe_adma_desc_slot *desc)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1078 {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1079 u32 pcdb;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1080 struct dma_regs *dma_reg = chan->device->dma_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1081
12458ea06efd7b Anatolij Gustschin 2009-12-11 1082 pcdb = desc->phys;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1083 if (!test_bit(PPC440SPE_DESC_INT, &desc->flags))
12458ea06efd7b Anatolij Gustschin 2009-12-11 1084 pcdb |= DMA_CDB_NO_INT;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1085
12458ea06efd7b Anatolij Gustschin 2009-12-11 1086 chan_last_sub[chan->device->id] = desc;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1087
12458ea06efd7b Anatolij Gustschin 2009-12-11 1088 ADMA_LL_DBG(print_cb(chan, desc->hw_desc));
12458ea06efd7b Anatolij Gustschin 2009-12-11 1089
12458ea06efd7b Anatolij Gustschin 2009-12-11 1090 iowrite32(pcdb, &dma_reg->cpfpl);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1091 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1092
12458ea06efd7b Anatolij Gustschin 2009-12-11 1093 /**
12458ea06efd7b Anatolij Gustschin 2009-12-11 1094 * ppc440spe_chan_append - update the h/w chain in the channel
12458ea06efd7b Anatolij Gustschin 2009-12-11 1095 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1096 static void ppc440spe_chan_append(struct ppc440spe_adma_chan *chan)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1097 {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1098 struct xor_regs *xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1099 struct ppc440spe_adma_desc_slot *iter;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1100 struct xor_cb *xcb;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1101 u32 cur_desc;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1102 unsigned long flags;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1103
12458ea06efd7b Anatolij Gustschin 2009-12-11 1104 local_irq_save(flags);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1105
12458ea06efd7b Anatolij Gustschin 2009-12-11 1106 switch (chan->device->id) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1107 case PPC440SPE_DMA0_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1108 case PPC440SPE_DMA1_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1109 cur_desc = ppc440spe_chan_get_current_descriptor(chan);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1110
12458ea06efd7b Anatolij Gustschin 2009-12-11 1111 if (likely(cur_desc)) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1112 iter = chan_last_sub[chan->device->id];
12458ea06efd7b Anatolij Gustschin 2009-12-11 1113 BUG_ON(!iter);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1114 } else {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1115 /* first peer */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1116 iter = chan_first_cdb[chan->device->id];
12458ea06efd7b Anatolij Gustschin 2009-12-11 1117 BUG_ON(!iter);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1118 ppc440spe_dma_put_desc(chan, iter);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1119 chan->hw_chain_inited = 1;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1120 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1121
12458ea06efd7b Anatolij Gustschin 2009-12-11 1122 /* is there something new to append */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1123 if (!iter->hw_next)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1124 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1125
12458ea06efd7b Anatolij Gustschin 2009-12-11 1126 /* flush descriptors from the s/w queue to fifo */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1127 list_for_each_entry_continue(iter, &chan->chain, chain_node) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1128 ppc440spe_dma_put_desc(chan, iter);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1129 if (!iter->hw_next)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1130 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1131 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1132 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1133 case PPC440SPE_XOR_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1134 /* update h/w links and refetch */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1135 if (!xor_last_submit->hw_next)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1136 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1137
12458ea06efd7b Anatolij Gustschin 2009-12-11 1138 xor_reg = chan->device->xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1139 /* the last linked CDB has to generate an interrupt
12458ea06efd7b Anatolij Gustschin 2009-12-11 1140 * that we'd be able to append the next lists to h/w
12458ea06efd7b Anatolij Gustschin 2009-12-11 1141 * regardless of the XOR engine state at the moment of
12458ea06efd7b Anatolij Gustschin 2009-12-11 1142 * appending of these next lists
12458ea06efd7b Anatolij Gustschin 2009-12-11 1143 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1144 xcb = xor_last_linked->hw_desc;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1145 xcb->cbc |= XOR_CBCR_CBCE_BIT;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1146
12458ea06efd7b Anatolij Gustschin 2009-12-11 1147 if (!(ioread32be(&xor_reg->sr) & XOR_SR_XCP_BIT)) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1148 /* XORcore is idle. Refetch now */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1149 do_xor_refetch = 0;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1150 ppc440spe_xor_set_link(xor_last_submit,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1151 xor_last_submit->hw_next);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1152
12458ea06efd7b Anatolij Gustschin 2009-12-11 1153 ADMA_LL_DBG(print_cb_list(chan,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1154 xor_last_submit->hw_next));
12458ea06efd7b Anatolij Gustschin 2009-12-11 1155
12458ea06efd7b Anatolij Gustschin 2009-12-11 1156 xor_last_submit = xor_last_linked;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1157 iowrite32be(ioread32be(&xor_reg->crsr) |
12458ea06efd7b Anatolij Gustschin 2009-12-11 1158 XOR_CRSR_RCBE_BIT | XOR_CRSR_64BA_BIT,
12458ea06efd7b Anatolij Gustschin 2009-12-11 1159 &xor_reg->crsr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1160 } else {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1161 /* XORcore is running. Refetch later in the handler */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1162 do_xor_refetch = 1;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1163 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1164
12458ea06efd7b Anatolij Gustschin 2009-12-11 1165 break;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1166 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1167
12458ea06efd7b Anatolij Gustschin 2009-12-11 1168 local_irq_restore(flags);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1169 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1170
12458ea06efd7b Anatolij Gustschin 2009-12-11 1171 /**
12458ea06efd7b Anatolij Gustschin 2009-12-11 1172 * ppc440spe_chan_get_current_descriptor - get the currently executed descriptor
12458ea06efd7b Anatolij Gustschin 2009-12-11 1173 */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1174 static u32
12458ea06efd7b Anatolij Gustschin 2009-12-11 1175 ppc440spe_chan_get_current_descriptor(struct ppc440spe_adma_chan *chan)
12458ea06efd7b Anatolij Gustschin 2009-12-11 1176 {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1177 struct dma_regs *dma_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1178 struct xor_regs *xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1179
12458ea06efd7b Anatolij Gustschin 2009-12-11 1180 if (unlikely(!chan->hw_chain_inited))
12458ea06efd7b Anatolij Gustschin 2009-12-11 1181 /* h/w descriptor chain is not initialized yet */
12458ea06efd7b Anatolij Gustschin 2009-12-11 1182 return 0;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1183
12458ea06efd7b Anatolij Gustschin 2009-12-11 1184 switch (chan->device->id) {
12458ea06efd7b Anatolij Gustschin 2009-12-11 1185 case PPC440SPE_DMA0_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1186 case PPC440SPE_DMA1_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1187 dma_reg = chan->device->dma_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 @1188 return ioread32(&dma_reg->acpl) & (~DMA_CDB_MSK);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1189 case PPC440SPE_XOR_ID:
12458ea06efd7b Anatolij Gustschin 2009-12-11 1190 xor_reg = chan->device->xor_reg;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1191 return ioread32be(&xor_reg->ccbalr);
12458ea06efd7b Anatolij Gustschin 2009-12-11 1192 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1193 return 0;
12458ea06efd7b Anatolij Gustschin 2009-12-11 1194 }
12458ea06efd7b Anatolij Gustschin 2009-12-11 1195

:::::: The code at line 1188 was first introduced by commit
:::::: 12458ea06efd7b44281e68fe59c950ec7d59c649 ppc440spe-adma: adds updated ppc440spe adma driver

:::::: TO: Anatolij Gustschin <agust@xxxxxxx>
:::::: CC: Dan Williams <dan.j.williams@xxxxxxxxx>

---
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