Hi Luc,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4ef8451b332662d004df269d4cdeb7d9f31419b5
commit: e5fc436f06eef54ef512ea55a9db8eb9f2e76959 sparse: use static inline for __chk_{user,io}_ptr()
date:   10 weeks ago
config: sh-randconfig-s032-20201103 (attached as .config)
compiler: sh4-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: v0.6.3-76-gf680124b-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e5fc436f06eef54ef512ea55a9db8eb9f2e76959
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e5fc436f06eef54ef512ea55a9db8eb9f2e76959
        # 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=sh 

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


"sparse warnings: (new ones prefixed by >>)"
>> arch/sh/kernel/cpu/sh2a/setup-sh7264.c:474:9: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected void const volatile [noderef] __iomem *ptr @@     got unsigned int @@
>> arch/sh/kernel/cpu/sh2a/setup-sh7264.c:474:9: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/setup-sh7264.c:474:9: sparse:     got unsigned int
--
>> arch/sh/kernel/cpu/sh2a/clock-sh7264.c:44:33: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected void const volatile [noderef] __iomem *ptr @@     got unsigned int @@
>> arch/sh/kernel/cpu/sh2a/clock-sh7264.c:44:33: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:44:33: sparse:     got unsigned int
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:93:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:94:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:95:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:96:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:97:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:98:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:99:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:100:20: sparse: sparse: Using plain integer as NULL pointer
   arch/sh/kernel/cpu/sh2a/clock-sh7264.c:101:20: sparse: sparse: Using plain integer as NULL pointer
--
   drivers/hwmon/w83793.c:1372:37: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   drivers/hwmon/w83793.c:1372:37: sparse:     expected char const *__gu_addr
   drivers/hwmon/w83793.c:1372:37: sparse:     got char const [noderef] __user *
>> drivers/hwmon/w83793.c:1372:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
>> drivers/hwmon/w83793.c:1372:37: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/hwmon/w83793.c:1372:37: sparse:     got char const *__gu_addr
   drivers/hwmon/w83793.c:1425:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/hwmon/w83793.c:1425:21: sparse:     expected int const *__gu_addr
   drivers/hwmon/w83793.c:1425:21: sparse:     got int [noderef] __user *
>> drivers/hwmon/w83793.c:1425:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/hwmon/w83793.c:1425:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/hwmon/w83793.c:1425:21: sparse:     got int const *__gu_addr
   drivers/hwmon/w83793.c:1435:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/hwmon/w83793.c:1435:21: sparse:     expected int const *__gu_addr
   drivers/hwmon/w83793.c:1435:21: sparse:     got int [noderef] __user *
   drivers/hwmon/w83793.c:1435:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/hwmon/w83793.c:1435:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/hwmon/w83793.c:1435:21: sparse:     got int const *__gu_addr
--
   drivers/net/tun.c:3227:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/net/tun.c:3227:21: sparse:     expected int const *__gu_addr
   drivers/net/tun.c:3227:21: sparse:     got int [noderef] __user *
>> drivers/net/tun.c:3227:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> drivers/net/tun.c:3227:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/tun.c:3227:21: sparse:     got int const *__gu_addr
--
   drivers/media/rc/lirc_dev.c:378:23: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected unsigned int const *__gu_addr @@     got unsigned int [noderef] [usertype] __user *argp @@
   drivers/media/rc/lirc_dev.c:378:23: sparse:     expected unsigned int const *__gu_addr
   drivers/media/rc/lirc_dev.c:378:23: sparse:     got unsigned int [noderef] [usertype] __user *argp
>> drivers/media/rc/lirc_dev.c:378:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned int const *__gu_addr @@
>> drivers/media/rc/lirc_dev.c:378:23: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/media/rc/lirc_dev.c:378:23: sparse:     got unsigned int const *__gu_addr
--
   drivers/usb/class/usbtmc.c:584:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected unsigned int const *__gu_addr @@     got unsigned int [noderef] [usertype] __user *arg @@
   drivers/usb/class/usbtmc.c:584:13: sparse:     expected unsigned int const *__gu_addr
   drivers/usb/class/usbtmc.c:584:13: sparse:     got unsigned int [noderef] [usertype] __user *arg
>> drivers/usb/class/usbtmc.c:584:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned int const *__gu_addr @@
>> drivers/usb/class/usbtmc.c:584:13: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/usb/class/usbtmc.c:584:13: sparse:     got unsigned int const *__gu_addr
   drivers/usb/class/usbtmc.c:1963:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected unsigned int const *__gu_addr @@     got unsigned int [noderef] [usertype] __user * @@
   drivers/usb/class/usbtmc.c:1963:13: sparse:     expected unsigned int const *__gu_addr
   drivers/usb/class/usbtmc.c:1963:13: sparse:     got unsigned int [noderef] [usertype] __user *
   drivers/usb/class/usbtmc.c:1963:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned int const *__gu_addr @@
   drivers/usb/class/usbtmc.c:1963:13: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/usb/class/usbtmc.c:1963:13: sparse:     got unsigned int const *__gu_addr
   drivers/usb/class/usbtmc.c:2143:26: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected unsigned char const *__gu_addr @@     got unsigned char [noderef] __user * @@
   drivers/usb/class/usbtmc.c:2143:26: sparse:     expected unsigned char const *__gu_addr
   drivers/usb/class/usbtmc.c:2143:26: sparse:     got unsigned char [noderef] __user *
>> drivers/usb/class/usbtmc.c:2143:26: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned char const *__gu_addr @@
   drivers/usb/class/usbtmc.c:2143:26: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/usb/class/usbtmc.c:2143:26: sparse:     got unsigned char const *__gu_addr
--
   drivers/usb/gadget/function/rndis.c:1126:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user *buffer @@
   drivers/usb/gadget/function/rndis.c:1126:21: sparse:     expected char const *__gu_addr
   drivers/usb/gadget/function/rndis.c:1126:21: sparse:     got char const [noderef] __user *buffer
>> drivers/usb/gadget/function/rndis.c:1126:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
>> drivers/usb/gadget/function/rndis.c:1126:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/usb/gadget/function/rndis.c:1126:21: sparse:     got char const *__gu_addr
--
   net/atm/common.c:795:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   net/atm/common.c:795:13: sparse:     expected int const *__gu_addr
   net/atm/common.c:795:13: sparse:     got int [noderef] __user *optlen
>> net/atm/common.c:795:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/atm/common.c:795:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/atm/common.c:795:13: sparse:     got int const *__gu_addr
--
   net/atm/resources.c:203:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *iobuf_len @@
   net/atm/resources.c:203:13: sparse:     expected int const *__gu_addr
   net/atm/resources.c:203:13: sparse:     got int [noderef] __user *iobuf_len
>> net/atm/resources.c:203:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/atm/resources.c:203:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/atm/resources.c:203:13: sparse:     got int const *__gu_addr
   net/atm/resources.c:236:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *sioc_len @@
   net/atm/resources.c:236:13: sparse:     expected int const *__gu_addr
   net/atm/resources.c:236:13: sparse:     got int [noderef] __user *sioc_len
   net/atm/resources.c:236:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   net/atm/resources.c:236:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/atm/resources.c:236:13: sparse:     got int const *__gu_addr
--
   net/core/pktgen.c:720:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/core/pktgen.c:720:21: sparse:     expected char const *__gu_addr
   net/core/pktgen.c:720:21: sparse:     got char const [noderef] __user *
>> net/core/pktgen.c:720:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
>> net/core/pktgen.c:720:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/core/pktgen.c:720:21: sparse:     got char const *__gu_addr
   net/core/pktgen.c:738:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/core/pktgen.c:738:21: sparse:     expected char const *__gu_addr
   net/core/pktgen.c:738:21: sparse:     got char const [noderef] __user *
   net/core/pktgen.c:738:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
   net/core/pktgen.c:738:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/core/pktgen.c:738:21: sparse:     got char const *__gu_addr
   net/core/pktgen.c:764:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/core/pktgen.c:764:21: sparse:     expected char const *__gu_addr
   net/core/pktgen.c:764:21: sparse:     got char const [noderef] __user *
   net/core/pktgen.c:764:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
   net/core/pktgen.c:764:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/core/pktgen.c:764:21: sparse:     got char const *__gu_addr
   net/core/pktgen.c:781:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/core/pktgen.c:781:21: sparse:     expected char const *__gu_addr
   net/core/pktgen.c:781:21: sparse:     got char const [noderef] __user *
   net/core/pktgen.c:781:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
   net/core/pktgen.c:781:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/core/pktgen.c:781:21: sparse:     got char const *__gu_addr
   net/core/pktgen.c:815:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/core/pktgen.c:815:21: sparse:     expected char const *__gu_addr
   net/core/pktgen.c:815:21: sparse:     got char const [noderef] __user *
   net/core/pktgen.c:815:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got char const *__gu_addr @@
   net/core/pktgen.c:815:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/core/pktgen.c:815:21: sparse:     got char const *__gu_addr
--
   drivers/net/slip/slip.c:458:14: sparse: sparse: incompatible types in comparison expression (different address spaces):
   drivers/net/slip/slip.c:458:14: sparse:    void [noderef] __rcu *
   drivers/net/slip/slip.c:458:14: sparse:    void *
   drivers/net/slip/slip.c:892:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   drivers/net/slip/slip.c:892:9: sparse:    void [noderef] __rcu *
   drivers/net/slip/slip.c:892:9: sparse:    void *
   drivers/net/slip/slip.c:1099:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
>> drivers/net/slip/slip.c:1099:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
--
   net/dccp/proto.c:535:52: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected restricted __be32 const [usertype] service @@     got int [addressable] val @@
   net/dccp/proto.c:535:52: sparse:     expected restricted __be32 const [usertype] service
   net/dccp/proto.c:535:52: sparse:     got int [addressable] val
   net/dccp/proto.c:620:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   net/dccp/proto.c:620:13: sparse:     expected int const *__gu_addr
   net/dccp/proto.c:620:13: sparse:     got int [noderef] __user *optlen
>> net/dccp/proto.c:620:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/dccp/proto.c:620:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/dccp/proto.c:620:13: sparse:     got int const *__gu_addr
   net/dccp/proto.c:718:57: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected restricted __be32 [usertype] param @@     got int cmsg_type @@
   net/dccp/proto.c:718:57: sparse:     expected restricted __be32 [usertype] param
   net/dccp/proto.c:718:57: sparse:     got int cmsg_type
--
   net/ipv6/ip6mr.c:1837:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   net/ipv6/ip6mr.c:1837:13: sparse:     expected int const *__gu_addr
   net/ipv6/ip6mr.c:1837:13: sparse:     got int [noderef] __user *optlen
>> net/ipv6/ip6mr.c:1837:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/ipv6/ip6mr.c:1837:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/ipv6/ip6mr.c:1837:13: sparse:     got int const *__gu_addr
   net/ipv6/ip6mr.c:405:13: sparse: sparse: context imbalance in 'ip6mr_vif_seq_start' - different lock contexts for basic block
   net/ipv6/ip6mr.c: note: in included file (through include/linux/mroute6.h):
   include/linux/mroute_base.h:427:31: sparse: sparse: context imbalance in 'mr_mfc_seq_stop' - unexpected unlock
--
   net/nfc/llcp_sock.c:308:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   net/nfc/llcp_sock.c:308:13: sparse:     expected int const *__gu_addr
   net/nfc/llcp_sock.c:308:13: sparse:     got int [noderef] __user *optlen
>> net/nfc/llcp_sock.c:308:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/nfc/llcp_sock.c:308:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/nfc/llcp_sock.c:308:13: sparse:     got int const *__gu_addr
--
   net/sctp/socket.c: note: in included file (through include/net/sctp/sctp.h):
   include/net/sctp/structs.h:329:41: sparse: sparse: array of flexible structures
   net/sctp/socket.c:7814:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   net/sctp/socket.c:7814:13: sparse:     expected int const *__gu_addr
   net/sctp/socket.c:7814:13: sparse:     got int [noderef] __user *optlen
>> net/sctp/socket.c:7814:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/sctp/socket.c:7814:13: sparse:     expected void const volatile [noderef] __user *ptr
   net/sctp/socket.c:7814:13: sparse:     got int const *__gu_addr
   net/sctp/socket.c:8210:20: sparse: sparse: context imbalance in 'sctp_get_port_local' - unexpected unlock

vim +474 arch/sh/kernel/cpu/sh2a/setup-sh7264.c

51ce30684e0d1ae Phil Edworthy 2012-05-09  470  
51ce30684e0d1ae Phil Edworthy 2012-05-09  471  /* USB Host */
51ce30684e0d1ae Phil Edworthy 2012-05-09  472  static void usb_port_power(int port, int power)
51ce30684e0d1ae Phil Edworthy 2012-05-09  473  {
51ce30684e0d1ae Phil Edworthy 2012-05-09 @474  	__raw_writew(0x200 , 0xffffc0c2) ; /* Initialise UACS25 */
51ce30684e0d1ae Phil Edworthy 2012-05-09  475  }
51ce30684e0d1ae Phil Edworthy 2012-05-09  476  

:::::: The code at line 474 was first introduced by commit
:::::: 51ce30684e0d1ae50a154e1026de57d15d096286 sh: Add sh7264 device

:::::: TO: Phil Edworthy <phil.edworthy@renesas.com>
:::::: CC: Paul Mundt <lethal@linux-sh.org>

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