drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: sparse: sparse: incorrect type in initializer (different address spaces)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   dcc0b49040c70ad827a7f3d58a21b01fdb14e749
commit: 4184da4f316a549ae732d91088571fef46a2f58d staging: vchiq: fix __user 
annotations
date:   5 months ago
config: sh-randconfig-s032-20210212 (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: v0.6.3-215-g0fb77bb6-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4184da4f316a549ae732d91088571fef46a2f58d
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 4184da4f316a549ae732d91088571fef46a2f58d
        # 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 <l...@intel.com>


"sparse warnings: (new ones prefixed by >>)"
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1000:56: 
sparse: sparse: incorrect type in argument 2 (different address spaces) @@     
expected void *offset @@     got void [noderef] __user *data @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1000:56: 
sparse:     expected void *offset
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1000:56: 
sparse:     got void [noderef] __user *data
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1214:47: 
sparse: sparse: incorrect type in assignment (different address spaces) @@     
expected void [noderef] __user *[addressable] [assigned] bulk_userdata @@     
got void *bulk_userdata @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1214:47: 
sparse:     expected void [noderef] __user *[addressable] [assigned] 
bulk_userdata
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1214:47: 
sparse:     got void *bulk_userdata
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse: sparse: incorrect type in initializer (different address spaces) @@     
expected unsigned int const *__gu_addr @@     got unsigned int [noderef] 
[usertype] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse:     expected unsigned int const *__gu_addr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse:     got unsigned int [noderef] [usertype] __user *
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse: sparse: incorrect type in argument 1 (different address spaces) @@     
expected void const volatile [noderef] __user *ptr @@     got unsigned int 
const *__gu_addr @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse:     expected void const volatile [noderef] __user *ptr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1051:23: 
sparse:     got unsigned int const *__gu_addr
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
>> sparse: sparse: incorrect type in initializer (different address spaces) @@  
>>    expected unsigned long const *__gu_addr @@     got unsigned long 
>> [noderef] [usertype] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
sparse:     expected unsigned long const *__gu_addr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
sparse:     got unsigned long [noderef] [usertype] __user *
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
>> sparse: sparse: incorrect type in argument 1 (different address spaces) @@   
>>   expected void const volatile [noderef] __user *ptr @@     got unsigned 
>> long const *__gu_addr @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
sparse:     expected void const volatile [noderef] __user *ptr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1055:23: 
sparse:     got unsigned long const *__gu_addr

vim +1055 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c

  1042  
  1043  /* read a user pointer value from an array pointers in user space */
  1044  static inline int vchiq_get_user_ptr(void __user **buf, void __user 
*ubuf, int index)
  1045  {
  1046          int ret;
  1047  
  1048          if (in_compat_syscall()) {
  1049                  compat_uptr_t ptr32;
  1050                  compat_uptr_t __user *uptr = ubuf;
  1051                  ret = get_user(ptr32, uptr + index);
  1052                  *buf = compat_ptr(ptr32);
  1053          } else {
  1054                  uintptr_t ptr, __user *uptr = ubuf;
> 1055                  ret = get_user(ptr, uptr + index);
  1056                  *buf = (void __user *)ptr;
  1057          }
  1058  
  1059          return ret;
  1060  }
  1061  

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

.config.gz
Description: application/gzip