tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 81a41d2ac1de43215c014bc71d907a026042e55b commit: 975e216e36aa3f7aba9d8e1e1d6cbba7cf692ad7 [1336/14122] arm64: add support for machine check error safe config: arm64-randconfig-r123-20240926 (https://download.01.org/0day-ci/archive/20240927/202409270023.ToC1weNo-lkp@i...) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce: (https://download.01.org/0day-ci/archive/20240927/202409270023.ToC1weNo-lkp@i...)

If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202409270023.ToC1weNo-lkp@intel.com/

sparse warnings: (new ones prefixed by >>) lib/iov_iter.c: note: in included file (through include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/rcuwait.h, ...):

...

include/linux/uaccess.h:213:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __user *ptr @@ got void *dst @@

include/linux/uaccess.h:213:16: sparse: expected void const [noderef] __user *ptr include/linux/uaccess.h:213:16: sparse: got void *dst lib/iov_iter.c: note: in included file: include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:33:39: sparse: got unsigned int include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:33:39: sparse: got unsigned int include/net/checksum.h:41:45: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:41:45: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:41:45: sparse: got unsigned int include/net/checksum.h:41:45: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:41:45: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:41:45: sparse: got unsigned int

vim +213 include/linux/uaccess.h

ec6347bb43395c Dan Williams 2020-10-05 207 59feaaa04e929c Tong Tiangen 2023-12-07 208 #ifndef copy_mc_to_user 59feaaa04e929c Tong Tiangen 2023-12-07 209 static inline unsigned long __must_check 59feaaa04e929c Tong Tiangen 2023-12-07 210 copy_mc_to_user(void *dst, const void *src, size_t cnt) 59feaaa04e929c Tong Tiangen 2023-12-07 211 { 59feaaa04e929c Tong Tiangen 2023-12-07 212 check_object_size(src, cnt, true); 59feaaa04e929c Tong Tiangen 2023-12-07 @213 return raw_copy_to_user(dst, src, cnt); 59feaaa04e929c Tong Tiangen 2023-12-07 214 } 59feaaa04e929c Tong Tiangen 2023-12-07 215 #endif 59feaaa04e929c Tong Tiangen 2023-12-07 216

:::::: The code at line 213 was first introduced by commit :::::: 59feaaa04e929cf051c9b29e28fb9e1299785280 uaccess: add generic fallback version of copy_mc_to_user()

:::::: TO: Tong Tiangen tongtiangen@huawei.com :::::: CC: Tong Tiangen tongtiangen@huawei.com