Hi Luc,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a349e4c659609fd20e4beea89e5c4a4038e33a95
commit: e5fc436f06eef54ef512ea55a9db8eb9f2e76959 sparse: use static inline for __chk_{user,io}_ptr()
date:   3 months ago
config: sh-randconfig-s032-20201123 (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: v0.6.3-134-gb59dbdaf-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/clock-sh7206.c:26:44: 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-sh7206.c:26:44: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:26:44: sparse:     got unsigned int
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:35:20: 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-sh7206.c:35:20: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:35:20: sparse:     got unsigned int
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:45:46: 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-sh7206.c:45:46: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:45:46: sparse:     got unsigned int
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:54:20: 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-sh7206.c:54:20: sparse:     expected void const volatile [noderef] __iomem *ptr
   arch/sh/kernel/cpu/sh2a/clock-sh7206.c:54:20: sparse:     got unsigned int
--
   drivers/net/ppp/ppp_generic.c:925:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:925:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:925:21: sparse:     got int [noderef] __user *p
>> drivers/net/ppp/ppp_generic.c:925:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> drivers/net/ppp/ppp_generic.c:925:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:925:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:939:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:939:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:939:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:939:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:939:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:939:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:954:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:954:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:954:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:954:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:954:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:954:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:651:29: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:651:29: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:651:29: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:651:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:651:29: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:651:29: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:681:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:681:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:681:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:681:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:681:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:681:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:688:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:688:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:688:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:688:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:688:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:688:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:726:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:726:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:726:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:726:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:726:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:726:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:755:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:755:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:755:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:755:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:755:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:755:21: sparse:     got int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:823:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *p @@
   drivers/net/ppp/ppp_generic.c:823:21: sparse:     expected int const *__gu_addr
   drivers/net/ppp/ppp_generic.c:823:21: sparse:     got int [noderef] __user *p
   drivers/net/ppp/ppp_generic.c:823:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/net/ppp/ppp_generic.c:823:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/net/ppp/ppp_generic.c:823:21: sparse:     got int const *__gu_addr
--
   drivers/isdn/mISDN/timerdev.c:229:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/timerdev.c:229:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/timerdev.c:229:21: sparse:     got int [noderef] __user *
>> drivers/isdn/mISDN/timerdev.c:229:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> drivers/isdn/mISDN/timerdev.c:229:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/timerdev.c:229:21: sparse:     got int const *__gu_addr
   drivers/isdn/mISDN/timerdev.c:245:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/timerdev.c:245:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/timerdev.c:245:21: sparse:     got int [noderef] __user *
   drivers/isdn/mISDN/timerdev.c:245:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/isdn/mISDN/timerdev.c:245:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/timerdev.c:245:21: sparse:     got int const *__gu_addr
--
   drivers/isdn/mISDN/socket.c:319:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/socket.c:319:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/socket.c:319:21: sparse:     got int [noderef] __user *
>> drivers/isdn/mISDN/socket.c:319:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> drivers/isdn/mISDN/socket.c:319:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/socket.c:319:21: sparse:     got int const *__gu_addr
   drivers/isdn/mISDN/socket.c:333:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/socket.c:333:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/socket.c:333:21: sparse:     got int [noderef] __user *
   drivers/isdn/mISDN/socket.c:333:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/isdn/mISDN/socket.c:333:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/socket.c:333:21: sparse:     got int const *__gu_addr
   drivers/isdn/mISDN/socket.c:371:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/socket.c:371:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/socket.c:371:21: sparse:     got int [noderef] __user *
   drivers/isdn/mISDN/socket.c:371:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/isdn/mISDN/socket.c:371:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/socket.c:371:21: sparse:     got int const *__gu_addr
   drivers/isdn/mISDN/socket.c:441:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user *optlen @@
   drivers/isdn/mISDN/socket.c:441:13: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/socket.c:441:13: sparse:     got int [noderef] __user *optlen
   drivers/isdn/mISDN/socket.c:441:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/isdn/mISDN/socket.c:441:13: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/socket.c:441:13: sparse:     got int const *__gu_addr
   drivers/isdn/mISDN/socket.c:654:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   drivers/isdn/mISDN/socket.c:654:21: sparse:     expected int const *__gu_addr
   drivers/isdn/mISDN/socket.c:654:21: sparse:     got int [noderef] __user *
   drivers/isdn/mISDN/socket.c:654:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
   drivers/isdn/mISDN/socket.c:654:21: sparse:     expected void const volatile [noderef] __user *ptr
   drivers/isdn/mISDN/socket.c:654:21: sparse:     got int const *__gu_addr
--
   net/atm/pppoatm.c:376:24: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int const *__gu_addr @@     got int [noderef] __user * @@
   net/atm/pppoatm.c:376:24: sparse:     expected int const *__gu_addr
   net/atm/pppoatm.c:376:24: sparse:     got int [noderef] __user *
>> net/atm/pppoatm.c:376:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got int const *__gu_addr @@
>> net/atm/pppoatm.c:376:24: sparse:     expected void const volatile [noderef] __user *ptr
   net/atm/pppoatm.c:376:24: sparse:     got int const *__gu_addr
   net/atm/pppoatm.c:453:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected unsigned short const *__gu_addr @@     got unsigned short [noderef] [usertype] __user * @@
   net/atm/pppoatm.c:453:21: sparse:     expected unsigned short const *__gu_addr
   net/atm/pppoatm.c:453:21: sparse:     got unsigned short [noderef] [usertype] __user *
>> net/atm/pppoatm.c:453:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned short const *__gu_addr @@
   net/atm/pppoatm.c:453:21: sparse:     expected void const volatile [noderef] __user *ptr
   net/atm/pppoatm.c:453:21: sparse:     got unsigned short const *__gu_addr

vim +26 arch/sh/kernel/cpu/sh2a/clock-sh7206.c

9d4436a6fbc8c5e Yoshinori Sato 2006-11-05  23  
9d4436a6fbc8c5e Yoshinori Sato 2006-11-05  24  static void master_clk_init(struct clk *clk)
9d4436a6fbc8c5e Yoshinori Sato 2006-11-05  25  {
16b259203c513ed Paul Mundt     2010-11-01 @26  	clk->rate *= pll2_mult * pll1rate[(__raw_readw(FREQCR) >> 8) & 0x0007];
9d4436a6fbc8c5e Yoshinori Sato 2006-11-05  27  }
9d4436a6fbc8c5e Yoshinori Sato 2006-11-05  28  

:::::: The code at line 26 was first introduced by commit
:::::: 16b259203c513ed28bd31cc9a981e0d3ad517943 sh: migrate SH_CLK_MD to mode pin API.

:::::: TO: Paul Mundt <lethal@linux-sh.org>
:::::: 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