tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.csum-x86 head: f6c1313680f1d2319d2061c63abeb76f820319b8 commit: 90c2bfd06916ac7c05129b36683bfd3424d8e0e4 [4/18] Fix the csum_and_copy_..._user() idiocy config: powerpc64-randconfig-r121-20231124 (https://download.01.org/0day-ci/archive/20231125/202311250254.UC1kAFDI-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20231125/202311250254.UC1kAFDI-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311250254.UC1kAFDI-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) net/core/datagram.c:745:55: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault [usertype] next @@ net/core/datagram.c:745:55: sparse: expected restricted __wsum [usertype] v net/core/datagram.c:745:55: sparse: got restricted __wsum_fault [usertype] next net/core/datagram.c:745:54: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] csum2 @@ got restricted __wsum_fault @@ net/core/datagram.c:745:54: sparse: expected restricted __wsum [usertype] csum2 net/core/datagram.c:745:54: sparse: got restricted __wsum_fault >> net/core/datagram.c:754:23: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault @@ net/core/datagram.c:754:23: sparse: expected restricted __wsum [usertype] v net/core/datagram.c:754:23: sparse: got restricted __wsum_fault >> net/core/datagram.c:754:23: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __wsum [usertype] next @@ got restricted __wsum_fault @@ net/core/datagram.c:754:23: sparse: expected restricted __wsum [usertype] next net/core/datagram.c:754:23: sparse: got restricted __wsum_fault net/core/datagram.c: note: in included file (through include/linux/skbuff.h, include/net/net_namespace.h, include/linux/inet.h): include/net/checksum.h:36:17: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __wsum_fault @@ got restricted __wsum [usertype] @@ include/net/checksum.h:36:17: sparse: expected restricted __wsum_fault include/net/checksum.h:36:17: sparse: got restricted __wsum [usertype] include/net/checksum.h:36:17: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __wsum_fault @@ got restricted __wsum [usertype] @@ include/net/checksum.h:36:17: sparse: expected restricted __wsum_fault include/net/checksum.h:36:17: sparse: got restricted __wsum [usertype] -- >> net/core/skbuff.c:3385:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault @@ net/core/skbuff.c:3385:24: sparse: expected restricted __wsum [usertype] v net/core/skbuff.c:3385:24: sparse: got restricted __wsum_fault >> net/core/skbuff.c:3385:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got restricted __wsum_fault @@ net/core/skbuff.c:3385:22: sparse: expected restricted __wsum [usertype] csum net/core/skbuff.c:3385:22: sparse: got restricted __wsum_fault net/core/skbuff.c:3414:41: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault @@ net/core/skbuff.c:3414:41: sparse: expected restricted __wsum [usertype] v net/core/skbuff.c:3414:41: sparse: got restricted __wsum_fault >> net/core/skbuff.c:3414:39: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum2 @@ got restricted __wsum_fault @@ net/core/skbuff.c:3414:39: sparse: expected restricted __wsum [usertype] csum2 net/core/skbuff.c:3414:39: sparse: got restricted __wsum_fault net/core/skbuff.c:6971:55: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault [usertype] next @@ net/core/skbuff.c:6971:55: sparse: expected restricted __wsum [usertype] v net/core/skbuff.c:6971:55: sparse: got restricted __wsum_fault [usertype] next net/core/skbuff.c:6971:54: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] csum2 @@ got restricted __wsum_fault @@ net/core/skbuff.c:6971:54: sparse: expected restricted __wsum [usertype] csum2 net/core/skbuff.c:6971:54: sparse: got restricted __wsum_fault net/core/skbuff.c:6958:23: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault @@ net/core/skbuff.c:6958:23: sparse: expected restricted __wsum [usertype] v net/core/skbuff.c:6958:23: sparse: got restricted __wsum_fault >> net/core/skbuff.c:6958:23: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __wsum [usertype] next @@ got restricted __wsum_fault @@ net/core/skbuff.c:6958:23: sparse: expected restricted __wsum [usertype] next net/core/skbuff.c:6958:23: sparse: got restricted __wsum_fault net/core/skbuff.c: note: in included file (through include/net/net_namespace.h, include/linux/inet.h): include/linux/skbuff.h:2703:28: sparse: sparse: self-comparison always evaluates to false net/core/skbuff.c: note: in included file (through include/linux/skbuff.h, include/net/net_namespace.h, include/linux/inet.h): include/net/checksum.h:36:17: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __wsum_fault @@ got restricted __wsum [usertype] @@ include/net/checksum.h:36:17: sparse: expected restricted __wsum_fault include/net/checksum.h:36:17: sparse: got restricted __wsum [usertype] include/net/checksum.h:36:17: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __wsum_fault @@ got restricted __wsum [usertype] @@ include/net/checksum.h:36:17: sparse: expected restricted __wsum_fault include/net/checksum.h:36:17: sparse: got restricted __wsum [usertype] -- drivers/net/ethernet/3com/typhoon.c:769:21: sparse: sparse: restricted __be16 degrades to integer >> drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] v @@ got restricted __wsum_fault @@ drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: expected restricted __wsum [usertype] v drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: got restricted __wsum_fault >> drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __wsum [usertype] sum @@ got restricted __wsum_fault @@ drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: expected restricted __wsum [usertype] sum drivers/net/ethernet/3com/typhoon.c:1418:42: sparse: got restricted __wsum_fault drivers/net/ethernet/3com/typhoon.c:525:39: sparse: sparse: context imbalance in 'typhoon_process_response' - different lock contexts for basic block drivers/net/ethernet/3com/typhoon.c: note: in included file (through include/linux/skbuff.h, include/net/net_namespace.h, include/linux/netdevice.h): include/net/checksum.h:36:17: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __wsum_fault @@ got restricted __wsum [usertype] @@ include/net/checksum.h:36:17: sparse: expected restricted __wsum_fault include/net/checksum.h:36:17: sparse: got restricted __wsum [usertype] vim +754 net/core/datagram.c 6d0d419914286a David Howells 2023-09-25 748 6d0d419914286a David Howells 2023-09-25 749 static __always_inline 6d0d419914286a David Howells 2023-09-25 750 size_t memcpy_to_iter_csum(void *iter_to, size_t progress, 6d0d419914286a David Howells 2023-09-25 751 size_t len, void *from, void *priv2) 6d0d419914286a David Howells 2023-09-25 752 { 6d0d419914286a David Howells 2023-09-25 753 __wsum *csum = priv2; dc32bff195b45e David Howells 2023-09-25 @754 __wsum next = csum_partial_copy_nocheck(from, iter_to, len); 6d0d419914286a David Howells 2023-09-25 755 dc32bff195b45e David Howells 2023-09-25 756 *csum = csum_block_add(*csum, next, progress); 6d0d419914286a David Howells 2023-09-25 757 return 0; 6d0d419914286a David Howells 2023-09-25 758 } 6d0d419914286a David Howells 2023-09-25 759 :::::: The code at line 754 was first introduced by commit :::::: dc32bff195b45e8571c442954beee259e9500dac iov_iter, net: Fold in csum_and_memcpy() :::::: TO: David Howells <dhowells@xxxxxxxxxx> :::::: CC: Christian Brauner <brauner@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
