tree: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git testing head: 87a37f01e744b2203a6d053322632f680f30fade commit: 068e2e1754d7c9e92e07c8332b2b64673b4989cc [10/11] lib: checksum: Add some corner cases to csum_ipv6_magic tests config: x86_64-randconfig-122-20240218 (https://download.01.org/0day-ci/archive/20240219/202402190049.MS7cVVET-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240219/202402190049.MS7cVVET-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/202402190049.MS7cVVET-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> lib/checksum_kunit.c:512:53: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ lib/checksum_kunit.c:512:53: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:512:53: sparse: got unsigned int lib/checksum_kunit.c:517:50: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ lib/checksum_kunit.c:517:50: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:517:50: sparse: got unsigned int lib/checksum_kunit.c:522:50: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ lib/checksum_kunit.c:522:50: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:522:50: sparse: got unsigned int lib/checksum_kunit.c:527:48: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ lib/checksum_kunit.c:527:48: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:527:48: sparse: got unsigned int lib/checksum_kunit.c:532:48: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ lib/checksum_kunit.c:532:48: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:532:48: sparse: got unsigned int >> lib/checksum_kunit.c:542:53: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted __wsum [usertype] csum @@ got restricted __be32 [usertype] @@ lib/checksum_kunit.c:542:53: sparse: expected restricted __wsum [usertype] csum lib/checksum_kunit.c:542:53: sparse: got restricted __be32 [usertype] vim +512 lib/checksum_kunit.c 480 481 static void test_csum_ipv6_magic(struct kunit *test) 482 { 483 #if defined(CONFIG_NET) 484 struct csum_ipv6_magic_data { 485 const struct in6_addr saddr; 486 const struct in6_addr daddr; 487 __be32 len; 488 __wsum csum; 489 unsigned char proto; 490 unsigned char pad[3]; 491 } *data; 492 __sum16 csum_result, expected; 493 int ipv6_num_tests = ((MAX_LEN - sizeof(struct csum_ipv6_magic_data)) / WORD_ALIGNMENT); 494 495 for (int i = 0; i < ipv6_num_tests; i++) { 496 int index = i * WORD_ALIGNMENT; 497 498 data = kmalloc(sizeof(struct csum_ipv6_magic_data), GFP_KERNEL); 499 500 memcpy(data, random_buf + index, sizeof(struct csum_ipv6_magic_data)); 501 502 csum_result = csum_ipv6_magic(&data->saddr, &data->daddr, 503 ntohl(data->len), data->proto, 504 data->csum); 505 expected = (__force __sum16)htons(expected_csum_ipv6_magic[i]); 506 CHECK_EQ(csum_result, expected); 507 } 508 509 /* test corner cases */ 510 memset(tmp_buf, 0xff, sizeof(struct in6_addr)); 511 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, > 512 0xffff, 0xff, 0xffffffff); 513 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[0]); 514 CHECK_EQ(csum_result, expected); 515 516 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, 517 0xffff, 0, 0xffffffff); 518 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[1]); 519 CHECK_EQ(csum_result, expected); 520 521 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, 522 0xffff, 1, 0xffffffff); 523 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[2]); 524 CHECK_EQ(csum_result, expected); 525 526 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, 527 0, 0xff, 0xffffffff); 528 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[3]); 529 CHECK_EQ(csum_result, expected); 530 531 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, 532 1, 0xff, 0xffffffff); 533 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[4]); 534 CHECK_EQ(csum_result, expected); 535 536 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, 537 0xffff, 0xff, 0); 538 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[5]); 539 CHECK_EQ(csum_result, expected); 540 541 csum_result = csum_ipv6_magic((struct in6_addr *)tmp_buf, (struct in6_addr *)tmp_buf, > 542 0xffff, 0xff, htonl(1)); 543 expected = (__force __sum16)htons(expected_csum_ipv6_magic_corner[6]); 544 CHECK_EQ(csum_result, expected); 545 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
