tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git untested.iov_iter head: 5ed11e04d3f20dc089bf8cfc4ef08953e7e48765 commit: 2160c8ecd95266d189d400998a7d8c67a34a9c1e [11/13] iterate_bvec(): expand bvec.h macro forest, massage a bit config: nios2-randconfig-s031-20210426 (attached as .config) compiler: nios2-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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/commit/?id=2160c8ecd95266d189d400998a7d8c67a34a9c1e git remote add vfs https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git git fetch --no-tags vfs untested.iov_iter git checkout 2160c8ecd95266d189d400998a7d8c67a34a9c1e # 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__' W=1 ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> lib/iov_iter.c:598:9: sparse: sparse: incompatible types in comparison expression (different type sizes): >> lib/iov_iter.c:598:9: sparse: unsigned int * >> lib/iov_iter.c:598:9: sparse: unsigned long * lib/iov_iter.c:735:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:735:9: sparse: unsigned int * lib/iov_iter.c:735:9: sparse: unsigned long * lib/iov_iter.c:758:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:758:9: sparse: unsigned int * lib/iov_iter.c:758:9: sparse: unsigned long * lib/iov_iter.c:780:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:780:9: sparse: unsigned int * lib/iov_iter.c:780:9: sparse: unsigned long * lib/iov_iter.c:837:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:837:9: sparse: unsigned int * lib/iov_iter.c:837:9: sparse: unsigned long * lib/iov_iter.c:947:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:947:9: sparse: unsigned int * lib/iov_iter.c:947:9: sparse: unsigned long * lib/iov_iter.c:970:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:970:9: sparse: unsigned int * lib/iov_iter.c:970:9: sparse: unsigned long * lib/iov_iter.c:1543:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:1543:9: sparse: unsigned int * lib/iov_iter.c:1543:9: sparse: unsigned long * lib/iov_iter.c:1584:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:1584:9: sparse: unsigned int * lib/iov_iter.c:1584:9: sparse: unsigned long * lib/iov_iter.c:1630:9: sparse: sparse: incompatible types in comparison expression (different type sizes): lib/iov_iter.c:1630:9: sparse: unsigned int * lib/iov_iter.c:1630:9: sparse: unsigned long * lib/iov_iter.c: note: in included file: include/net/checksum.h:31:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:31:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:31:39: sparse: got unsigned int include/net/checksum.h:31:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:31:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:31:39: sparse: got unsigned int include/net/checksum.h:39:45: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:39:45: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:39:45: sparse: got unsigned int vim +598 lib/iov_iter.c 78e1f386170798 lib/iov_iter.c Al Viro 2018-11-25 590 aa28de275a2488 lib/iov_iter.c Al Viro 2017-06-29 591 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i) 62a8067a7f35db mm/iov_iter.c Al Viro 2014-04-04 592 { 36f7a8a4cd2e99 lib/iov_iter.c Al Viro 2015-12-06 593 const char *from = addr; 00e23707442a75 lib/iov_iter.c David Howells 2018-10-22 594 if (unlikely(iov_iter_is_pipe(i))) 241699cd72a848 lib/iov_iter.c Al Viro 2016-09-22 595 return copy_pipe_to_iter(addr, bytes, i); 09fc68dc66f759 lib/iov_iter.c Al Viro 2017-06-29 596 if (iter_is_iovec(i)) 09fc68dc66f759 lib/iov_iter.c Al Viro 2017-06-29 597 might_fault(); 3d4d3e48264e24 mm/iov_iter.c Al Viro 2014-11-27 @598 iterate_and_advance(i, bytes, v, 09fc68dc66f759 lib/iov_iter.c Al Viro 2017-06-29 599 copyout(v.iov_base, (from += v.iov_len) - v.iov_len, v.iov_len), 3d4d3e48264e24 mm/iov_iter.c Al Viro 2014-11-27 600 memcpy_to_page(v.bv_page, v.bv_offset, a280455fa87053 mm/iov_iter.c Al Viro 2014-11-27 601 (from += v.bv_len) - v.bv_len, v.bv_len), a280455fa87053 mm/iov_iter.c Al Viro 2014-11-27 602 memcpy(v.iov_base, (from += v.iov_len) - v.iov_len, v.iov_len) 3d4d3e48264e24 mm/iov_iter.c Al Viro 2014-11-27 603 ) 62a8067a7f35db mm/iov_iter.c Al Viro 2014-04-04 604 3d4d3e48264e24 mm/iov_iter.c Al Viro 2014-11-27 605 return bytes; c35e02480014f7 mm/iov_iter.c Matthew Wilcox 2014-08-01 606 } aa28de275a2488 lib/iov_iter.c Al Viro 2017-06-29 607 EXPORT_SYMBOL(_copy_to_iter); c35e02480014f7 mm/iov_iter.c Matthew Wilcox 2014-08-01 608 :::::: The code at line 598 was first introduced by commit :::::: 3d4d3e48264e24d9beb373bd0428b69889ac11ea iov_iter.c: convert copy_to_iter() to iterate_and_advance :::::: TO: Al Viro <viro@xxxxxxxxxxxxxxxxxx> :::::: CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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