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... 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 <lkp(a)intel.com&gt; "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: 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: 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; 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-all@lists.01.org